Package groovy.lang

Class MetaClassImpl

java.lang.Object
groovy.lang.MetaClassImpl
All Implemented Interfaces:
MetaClass, MetaObjectProtocol, MutableMetaClass
Direct Known Subclasses:
ClosureMetaClass, ExpandoMetaClass, ProxyMetaClass
public class MetaClassImpl
extends java.lang.Object
implements MetaClass, MutableMetaClass
Allows methods to be dynamically added to existing classes at runtime
See Also:
MetaClass

  • Nested Class Summary

    Nested Classes
    Modifier and Type Class Description
    static class  MetaClassImpl.Index  
    static class  MetaClassImpl.MetaConstructor
    This is a helper class introduced in Groovy 2.1.0, which is used only by indy.

  • Field Summary

    Fields
    Modifier and Type Field Description
    static java.lang.Object[] EMPTY_ARGUMENTS  
    protected MetaMethod getPropertyMethod  
    protected static java.lang.String INVOKE_METHOD_METHOD  
    protected MetaMethod invokeMethodMethod  
    protected boolean isGroovyObject  
    protected boolean isMap  
    protected MetaMethodIndex metaMethodIndex  
    protected static java.lang.String METHOD_MISSING  
    protected static java.lang.String PROPERTY_MISSING  
    protected MetaClassRegistry registry  
    protected MetaMethod setPropertyMethod  
    protected static java.lang.String STATIC_METHOD_MISSING  
    protected static java.lang.String STATIC_PROPERTY_MISSING  
    protected CachedClass theCachedClass  
    protected java.lang.Class theClass  

  • Constructor Summary

    Constructors
    Constructor Description
    MetaClassImpl​(MetaClassRegistry registry, java.lang.Class theClass)
    Constructor with registry setting methods to null
    MetaClassImpl​(MetaClassRegistry registry, java.lang.Class theClass, MetaMethod[] add)
    Constructor with registry
    MetaClassImpl​(java.lang.Class theClass)
    Constructor that sets the methods to null
    MetaClassImpl​(java.lang.Class theClass, MetaMethod[] add)
    Constructor

  • Method Summary

    Modifier and Type Method Description
    void addMetaBeanProperty​(MetaBeanProperty mp)
    Adds a new MetaBeanProperty to this MetaClass
    void addMetaMethod​(MetaMethod method)
    adds a MetaMethod to this class.
    protected void addMetaMethodToIndex​(MetaMethod method, MetaMethodIndex.Header header)  
    void addNewInstanceMethod​(java.lang.reflect.Method method)
    Adds an instance method to this metaclass.
    void addNewStaticMethod​(java.lang.reflect.Method method)
    Adds a static method to this metaclass.
    protected void applyPropertyDescriptors​(java.beans.PropertyDescriptor[] propertyDescriptors)  
    protected void checkIfGroovyObjectMethod​(MetaMethod metaMethod)
    Checks if the metaMethod is a method from the GroovyObject interface such as setProperty, getProperty and invokeMethod
    protected void checkInitalised()
    checks if the initialisation of the class id complete.
    protected java.lang.Object chooseMethod​(java.lang.String methodName, java.lang.Object methodOrList, java.lang.Class[] arguments)
    Chooses the correct method to use from a list of methods which match by name.
    protected void clearInvocationCaches()
    remove all method call cache entries.
    CallSite createConstructorSite​(CallSite site, java.lang.Object[] args)
    Create a CallSite
    protected static java.lang.String createErrorMessageForAmbiguity​(java.lang.String theClassName, java.lang.String name, java.lang.Class[] arguments, java.util.LinkedList matches)  
    CallSite createPogoCallCurrentSite​(CallSite site, java.lang.Class sender, java.lang.Object[] args)
    Create a CallSite
    CallSite createPogoCallSite​(CallSite site, java.lang.Object[] args)
    Create a CallSite
    CallSite createPojoCallSite​(CallSite site, java.lang.Object receiver, java.lang.Object[] args)
    Create a CallSite
    CallSite createStaticSite​(CallSite site, java.lang.Object[] args)
    Create a CallSite
    protected MetaMethod createTransformMetaMethod​(MetaMethod method)  
    protected static java.lang.Object doChooseMostSpecificParams​(java.lang.String theClassName, java.lang.String name, java.util.List matchingMethods, java.lang.Class[] arguments, boolean checkParametersCompatible)  
    protected void dropMethodCache​(java.lang.String name)  
    protected void dropStaticMethodCache​(java.lang.String name)  
    protected static MetaMethod findMethodInClassHierarchy​(java.lang.Class instanceKlazz, java.lang.String methodName, java.lang.Class[] arguments, MetaClass metaClass)  
    protected MetaMethod findMixinMethod​(java.lang.String methodName, java.lang.Class[] arguments)  
    protected static MetaMethod findOwnMethod​(java.lang.Class instanceKlazz, java.lang.String methodName, java.lang.Class[] arguments, MetaClass metaClass, MetaMethod method)  
    protected MetaBeanProperty findPropertyInClassHierarchy​(java.lang.String propertyName, CachedClass theClass)  
    MetaMethod[] getAdditionalMetaMethods()
    Retrieves a list of additional MetaMethods held by this class
    java.lang.Object getAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, boolean useSuper)
    Retrieves the value of an attribute (field).
    java.lang.Object getAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, boolean useSuper, boolean fromInsideClass)
    Retrieves the value of an attribute (field).
    java.lang.Object getAttribute​(java.lang.Object object, java.lang.String attribute)
    Retrieves the value of an attribute (field).
    ClassInfo getClassInfo()
    Returns the ClassInfo for the contained Class
    ClassNode getClassNode()
    Obtains a reference to the original AST for the MetaClass if it is available at runtime
    MetaProperty getEffectiveGetMetaProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, boolean useSuper)  
    MetaMethod getMetaMethod​(java.lang.String name, java.lang.Object[] argTypes)
    Retrieves an instance MetaMethod for the given name and argument values, using the types of the argument values to establish the chosen MetaMethod
    java.util.List<MetaMethod> getMetaMethods()
    Retrieves the list of MetaMethods held by this class.
    MetaProperty getMetaProperty​(java.lang.String name)
    Returns a MetaProperty for the given name or null if it doesn't exist
    java.util.List<MetaMethod> getMethods()
    Retrieves the list of MetaMethods held by the class.
    MetaMethod getMethodWithCaching​(java.lang.Class sender, java.lang.String methodName, java.lang.Object[] arguments, boolean isCallToSuper)  
    MetaMethod getMethodWithoutCaching​(java.lang.Class sender, java.lang.String methodName, java.lang.Class[] arguments, boolean isCallToSuper)  
    java.util.List<MetaProperty> getProperties()
    Get all the properties defined for this type
    java.lang.Object getProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, boolean useSuper, boolean fromInsideClass)
    Retrieves a property on the given receiver for the specified arguments.
    java.lang.Object getProperty​(java.lang.Object object, java.lang.String property)
    Retrieves a property on the given object for the specified arguments.
    MetaClassRegistry getRegistry()
    Returns the registry for this metaclass
    MetaMethod getStaticMetaMethod​(java.lang.String name, java.lang.Object[] argTypes)
    Retrieves a static MetaMethod for the given name and argument values, using the types of the arguments to establish the chosen MetaMethod
    protected java.lang.Object getSubclassMetaMethods​(java.lang.String methodName)  
    protected java.util.LinkedList<CachedClass> getSuperClasses()  
    CachedClass getTheCachedClass()
    Returns the cached class for this metaclass
    java.lang.Class getTheClass()
    Returns the class this object this is the metaclass of.
    int getVersion()
    Returns version of the contained Class
    protected static long handleMatches​(long matchesDistance, java.util.LinkedList matches, java.lang.Object method, long dist)  
    boolean hasCustomInvokeMethod()
    indicates is the meta class method invocation for non-static methods is done through a custom invoker object.
    boolean hasCustomStaticInvokeMethod()
    indicates is the meta class method invocation for static methods is done through a custom invoker object.
    MetaProperty hasProperty​(java.lang.Object obj, java.lang.String name)
    Returns true of the implementing MetaClass has a property of the given name
    void incVersion()
    Increments version of the contained Class
    void initialize()
    Complete the initialisation process.
    java.lang.Object invokeConstructor​(java.lang.Object[] arguments)
    Invokes a constructor for the given arguments.
    java.lang.Object invokeMethod​(java.lang.Class sender, java.lang.Object object, java.lang.String methodName, java.lang.Object[] originalArguments, boolean isCallToSuper, boolean fromInsideClass)
    Invokes a method on the given receiver for the specified arguments.
    java.lang.Object invokeMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object arguments)
    Invoke a method on the given object with the given arguments.
    java.lang.Object invokeMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object[] originalArguments)
    Invokes a method on the given receiver for the specified arguments.
    java.lang.Object invokeMissingMethod​(java.lang.Object instance, java.lang.String methodName, java.lang.Object[] arguments)
    Invoke a missing method on the given object with the given arguments.
    java.lang.Object invokeMissingProperty​(java.lang.Object instance, java.lang.String propertyName, java.lang.Object optionalValue, boolean isGetter)
    Invoke a missing property on the given object with the given arguments.
    java.lang.Object invokeStaticMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object[] arguments)
    Invokes a static method on the given Object with the given name and arguments.
    protected java.lang.Object invokeStaticMissingProperty​(java.lang.Object instance, java.lang.String propertyName, java.lang.Object optionalValue, boolean isGetter)
    Hook to deal with the case of MissingProperty for static properties.
    boolean isGroovyObject()
    Return whether the class represented by this metaclass instance is an instance of the GroovyObject class
    protected boolean isInitialized()  
    boolean isModified()
    Returns whether this MetaClassImpl has been modified.
    boolean isPermissivePropertyAccess()  
    protected void onGetPropertyFoundInHierarchy​(MetaMethod method)  
    protected void onInvokeMethodFoundInHierarchy​(MetaMethod method)  
    protected void onMixinMethodFound​(MetaMethod method)  
    protected void onSetPropertyFoundInHierarchy​(MetaMethod method)  
    protected void onSuperMethodFoundInHierarchy​(MetaMethod method)  
    protected void onSuperPropertyFoundInHierarchy​(MetaBeanProperty property)  
    MetaMethod pickMethod​(java.lang.String methodName, java.lang.Class[] arguments)
    Selects a method by name and argument classes.
    protected void reinitialize()  
    java.util.List respondsTo​(java.lang.Object obj, java.lang.String name)
    Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name regardless of arguments.
    java.util.List respondsTo​(java.lang.Object obj, java.lang.String name, java.lang.Object[] argTypes)
    Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name and arguments types.
    java.lang.reflect.Constructor retrieveConstructor​(java.lang.Class[] arguments)  
    MetaMethod retrieveConstructor​(java.lang.Object[] arguments)
    This is a helper method added in Groovy 2.1.0, which is used only by indy.
    MetaMethod retrieveStaticMethod​(java.lang.String methodName, java.lang.Object[] arguments)  
    int selectConstructorAndTransformArguments​(int numberOfConstructors, java.lang.Object[] arguments)
    Internal method to support Groovy runtime.
    void setAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, java.lang.Object newValue, boolean useSuper, boolean fromInsideClass)
    Sets an attribute on the given receiver for the specified arguments.
    void setAttribute​(java.lang.Object object, java.lang.String attribute, java.lang.Object newValue)
    Sets the value of an attribute (field).
    protected void setInitialized​(boolean initialized)  
    void setPermissivePropertyAccess​(boolean permissivePropertyAccess)  
    void setProperties​(java.lang.Object bean, java.util.Map map)
    Sets a number of bean properties from the given Map where the keys are the String names of properties and the values are the values of the properties to set
    void setProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, java.lang.Object newValue, boolean useSuper, boolean fromInsideClass)
    Retrieves a property on the given receiver for the specified arguments.
    void setProperty​(java.lang.Object object, java.lang.String property, java.lang.Object newValue)
    Sets a property on the given object for the specified arguments.
    java.lang.String toString()
    Returns a string representation of this metaclass

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Field Details

    • EMPTY_ARGUMENTS

      public static final java.lang.Object[] EMPTY_ARGUMENTS

    • STATIC_METHOD_MISSING

      protected static final java.lang.String STATIC_METHOD_MISSING
      See Also:
      Constant Field Values

    • STATIC_PROPERTY_MISSING

      protected static final java.lang.String STATIC_PROPERTY_MISSING
      See Also:
      Constant Field Values

    • METHOD_MISSING

      protected static final java.lang.String METHOD_MISSING
      See Also:
      Constant Field Values

    • PROPERTY_MISSING

      protected static final java.lang.String PROPERTY_MISSING
      See Also:
      Constant Field Values

    • INVOKE_METHOD_METHOD

      protected static final java.lang.String INVOKE_METHOD_METHOD
      See Also:
      Constant Field Values

    • theClass

      protected final java.lang.Class theClass

    • theCachedClass

      protected final CachedClass theCachedClass

    • isGroovyObject

      protected final boolean isGroovyObject

    • isMap

      protected final boolean isMap

    • metaMethodIndex

      protected final MetaMethodIndex metaMethodIndex

    • getPropertyMethod

      protected MetaMethod getPropertyMethod

    • invokeMethodMethod

      protected MetaMethod invokeMethodMethod

    • setPropertyMethod

      protected MetaMethod setPropertyMethod

    • registry

      protected MetaClassRegistry registry

  • Constructor Details

    • MetaClassImpl

      public MetaClassImpl​(java.lang.Class theClass, MetaMethod[] add)
      Constructor
      Parameters:
      theClass - The class this is the metaclass dor
      add - The methods for this class

    • MetaClassImpl

      public MetaClassImpl​(java.lang.Class theClass)
      Constructor that sets the methods to null
      Parameters:
      theClass - The class this is the metaclass dor

    • MetaClassImpl

      public MetaClassImpl​(MetaClassRegistry registry, java.lang.Class theClass, MetaMethod[] add)
      Constructor with registry
      Parameters:
      registry - The metaclass registry for this MetaClass
      theClass - The class
      add - The methods

    • MetaClassImpl

      public MetaClassImpl​(MetaClassRegistry registry, java.lang.Class theClass)
      Constructor with registry setting methods to null
      Parameters:
      registry - The metaclass registry for this MetaClass
      theClass - The class

  • Method Details

    • getTheCachedClass

      public final CachedClass getTheCachedClass()
      Returns the cached class for this metaclass
      Returns:
      The cached class.

    • getRegistry

      public MetaClassRegistry getRegistry()
      Returns the registry for this metaclass
      Returns:
      The resgistry

    • respondsTo

      public java.util.List respondsTo​(java.lang.Object obj, java.lang.String name, java.lang.Object[] argTypes)
      Description copied from interface: MetaObjectProtocol

      Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name and arguments types.

      Note that this method's return value is based on realised methods and does not take into account objects or classes that implement invokeMethod or methodMissing

      This method is "safe" in that it will always return a value and never throw an exception

      Specified by:
      respondsTo in interface MetaObjectProtocol
      Parameters:
      obj - The object to inspect
      name - The name of the method of interest
      argTypes - The argument types to match against
      Returns:
      A List of MetaMethods matching the argument types which will be empty if no matching methods exist
      See Also:
      MetaObjectProtocol.respondsTo(Object, String, Object[])

    • respondsTo

      public java.util.List respondsTo​(java.lang.Object obj, java.lang.String name)
      Description copied from interface: MetaObjectProtocol

      Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name regardless of arguments. In other words this method will return for foo() and foo(String).

      Note that this method's return value is based on realised methods and does not take into account objects or classes that implement invokeMethod or methodMissing

      This method is "safe" in that it will always return a value and never throw an exception

      Specified by:
      respondsTo in interface MetaObjectProtocol
      Parameters:
      obj - The object to inspect
      name - The name of the method of interest
      Returns:
      A List of MetaMethods which will be empty if no methods with the given name exist
      See Also:
      MetaObjectProtocol.respondsTo(Object, String)

    • hasProperty

      public MetaProperty hasProperty​(java.lang.Object obj, java.lang.String name)
      Description copied from interface: MetaObjectProtocol

      Returns true of the implementing MetaClass has a property of the given name

      Note that this method will only return true for realised properties and does not take into account implementation of getProperty or propertyMissing

      Specified by:
      hasProperty in interface MetaObjectProtocol
      Parameters:
      obj - The object to inspect
      name - The name of the property
      Returns:
      The MetaProperty or null if it doesn't exist
      See Also:
      MetaObjectProtocol.hasProperty(Object, String)

    • getMetaProperty

      public MetaProperty getMetaProperty​(java.lang.String name)
      Description copied from interface: MetaObjectProtocol
      Returns a MetaProperty for the given name or null if it doesn't exist
      Specified by:
      getMetaProperty in interface MetaObjectProtocol
      Parameters:
      name - The name of the MetaProperty
      Returns:
      A MetaProperty or null
      See Also:
      MetaObjectProtocol.getMetaProperty(String)

    • getStaticMetaMethod

      public MetaMethod getStaticMetaMethod​(java.lang.String name, java.lang.Object[] argTypes)
      Description copied from interface: MetaObjectProtocol
      Retrieves a static MetaMethod for the given name and argument values, using the types of the arguments to establish the chosen MetaMethod
      Specified by:
      getStaticMetaMethod in interface MetaObjectProtocol
      Parameters:
      name - The name of the MetaMethod
      argTypes - The argument types
      Returns:
      A MetaMethod or null if it doesn't exist
      See Also:
      MetaObjectProtocol.getStaticMetaMethod(String, Object[])

    • getMetaMethod

      public MetaMethod getMetaMethod​(java.lang.String name, java.lang.Object[] argTypes)
      Description copied from interface: MetaObjectProtocol
      Retrieves an instance MetaMethod for the given name and argument values, using the types of the argument values to establish the chosen MetaMethod
      Specified by:
      getMetaMethod in interface MetaObjectProtocol
      Parameters:
      name - The name of the MetaMethod
      argTypes - Array containing - 1) the argument values (using which their types are then inferred), or 2) the corresponding argument types
      Returns:
      A MetaMethod or null if it doesn't exist
      See Also:
      MetaObjectProtocol.getMetaMethod(String, Object[])

    • getTheClass

      public java.lang.Class getTheClass()
      Returns the class this object this is the metaclass of.
      Specified by:
      getTheClass in interface MetaObjectProtocol
      Returns:
      The class contained by this metaclass

    • isGroovyObject

      public boolean isGroovyObject()
      Return whether the class represented by this metaclass instance is an instance of the GroovyObject class
      Returns:
      true if this is a groovy class, false otherwise.

    • getSuperClasses

      protected java.util.LinkedList<CachedClass> getSuperClasses()

    • isModified

      public boolean isModified()
      Returns whether this MetaClassImpl has been modified. Since MetaClassImpl is not designed for modification this method always returns false
      Specified by:
      isModified in interface MutableMetaClass
      Returns:
      false

    • addNewInstanceMethod

      public void addNewInstanceMethod​(java.lang.reflect.Method method)
      Adds an instance method to this metaclass.
      Specified by:
      addNewInstanceMethod in interface MutableMetaClass
      Parameters:
      method - The method to be added

    • addNewStaticMethod

      public void addNewStaticMethod​(java.lang.reflect.Method method)
      Adds a static method to this metaclass.
      Specified by:
      addNewStaticMethod in interface MutableMetaClass
      Parameters:
      method - The method to be added

    • invokeMethod

      public java.lang.Object invokeMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object arguments)
      Invoke a method on the given object with the given arguments.
      Specified by:
      invokeMethod in interface MetaObjectProtocol
      Parameters:
      object - The object the method should be invoked on.
      methodName - The name of the method to invoke.
      arguments - The arguments to the invoked method as null, a Tuple, an array or a single argument of any type.
      Returns:
      The result of the method invocation.
      See Also:
      MetaObjectProtocol.invokeMethod(Object, String, Object[])

    • invokeMissingMethod

      public java.lang.Object invokeMissingMethod​(java.lang.Object instance, java.lang.String methodName, java.lang.Object[] arguments)
      Invoke a missing method on the given object with the given arguments.
      Specified by:
      invokeMissingMethod in interface MetaClass
      Parameters:
      instance - The object the method should be invoked on.
      methodName - The name of the method to invoke.
      arguments - The arguments to the invoked method.
      Returns:
      The result of the method invocation.
      See Also:
      MissingMethodException

    • invokeMissingProperty

      public java.lang.Object invokeMissingProperty​(java.lang.Object instance, java.lang.String propertyName, java.lang.Object optionalValue, boolean isGetter)
      Invoke a missing property on the given object with the given arguments.
      Specified by:
      invokeMissingProperty in interface MetaClass
      Parameters:
      instance - The object the method should be invoked on.
      propertyName - The name of the property to invoke.
      optionalValue - The (optional) new value for the property
      isGetter - Whether the method is a getter
      Returns:
      The result of the method invocation.

    • onSuperPropertyFoundInHierarchy

      protected void onSuperPropertyFoundInHierarchy​(MetaBeanProperty property)

    • onMixinMethodFound

      protected void onMixinMethodFound​(MetaMethod method)

    • onSuperMethodFoundInHierarchy

      protected void onSuperMethodFoundInHierarchy​(MetaMethod method)

    • onInvokeMethodFoundInHierarchy

      protected void onInvokeMethodFoundInHierarchy​(MetaMethod method)

    • onSetPropertyFoundInHierarchy

      protected void onSetPropertyFoundInHierarchy​(MetaMethod method)

    • onGetPropertyFoundInHierarchy

      protected void onGetPropertyFoundInHierarchy​(MetaMethod method)

    • invokeStaticMissingProperty

      protected java.lang.Object invokeStaticMissingProperty​(java.lang.Object instance, java.lang.String propertyName, java.lang.Object optionalValue, boolean isGetter)
      Hook to deal with the case of MissingProperty for static properties. The method will look attempt to look up "propertyMissing" handlers and invoke them otherwise thrown a MissingPropertyException
      Parameters:
      instance - The instance
      propertyName - The name of the property
      optionalValue - The value in the case of a setter
      isGetter - True if its a getter
      Returns:
      The value in the case of a getter or a MissingPropertyException

    • invokeMethod

      public java.lang.Object invokeMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object[] originalArguments)
      Invokes a method on the given receiver for the specified arguments. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
      Specified by:
      invokeMethod in interface MetaObjectProtocol
      Parameters:
      object - The object which the method was invoked on
      methodName - The name of the method
      originalArguments - The arguments to the method
      Returns:
      The return value of the method
      See Also:
      MetaClass.invokeMethod(Class, Object, String, Object[], boolean, boolean)

    • invokeMethod

      public java.lang.Object invokeMethod​(java.lang.Class sender, java.lang.Object object, java.lang.String methodName, java.lang.Object[] originalArguments, boolean isCallToSuper, boolean fromInsideClass)

      Invokes a method on the given receiver for the specified arguments. The sender is the class that invoked the method on the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

      The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary

      Specified by:
      invokeMethod in interface MetaClass
      Parameters:
      sender - The java.lang.Class instance that invoked the method
      object - The object which the method was invoked on
      methodName - The name of the method
      originalArguments - The arguments to the method
      isCallToSuper - Whether the method is a call to a super class method
      fromInsideClass - Whether the call was invoked from the inside or the outside of the class
      Returns:
      The return value of the method
      See Also:
      MetaClass.invokeMethod(Class, Object, String, Object[], boolean, boolean)

    • createTransformMetaMethod

      protected MetaMethod createTransformMetaMethod​(MetaMethod method)

    • getMethodWithCaching

      public MetaMethod getMethodWithCaching​(java.lang.Class sender, java.lang.String methodName, java.lang.Object[] arguments, boolean isCallToSuper)

    • retrieveConstructor

      public java.lang.reflect.Constructor retrieveConstructor​(java.lang.Class[] arguments)

    • retrieveStaticMethod

      public MetaMethod retrieveStaticMethod​(java.lang.String methodName, java.lang.Object[] arguments)

    • getMethodWithoutCaching

      public MetaMethod getMethodWithoutCaching​(java.lang.Class sender, java.lang.String methodName, java.lang.Class[] arguments, boolean isCallToSuper)

    • invokeStaticMethod

      public java.lang.Object invokeStaticMethod​(java.lang.Object object, java.lang.String methodName, java.lang.Object[] arguments)
      Description copied from interface: MetaObjectProtocol
      Invokes a static method on the given Object with the given name and arguments.

      The Object can either be an instance of the class that this MetaObjectProtocol instance applies to or the java.lang.Class instance itself. If a method cannot be invoked a MissingMethodException is will be thrown

      Specified by:
      invokeStaticMethod in interface MetaObjectProtocol
      Parameters:
      object - An instance of the class returned by the getTheClass() method or the class itself
      methodName - The name of the method
      arguments - The arguments to the method
      Returns:
      The return value of the method which is null if the return type is void
      See Also:
      MissingMethodException

    • invokeConstructor

      public java.lang.Object invokeConstructor​(java.lang.Object[] arguments)
      Description copied from interface: MetaObjectProtocol
      Invokes a constructor for the given arguments. The MetaClass will attempt to pick the best argument which matches the types of the objects passed within the arguments array
      Specified by:
      invokeConstructor in interface MetaObjectProtocol
      Parameters:
      arguments - The arguments to the constructor
      Returns:
      An instance of the java.lang.Class that this MetaObjectProtocol object applies to

    • selectConstructorAndTransformArguments

      public int selectConstructorAndTransformArguments​(int numberOfConstructors, java.lang.Object[] arguments)
      Description copied from interface: MetaClass
      Internal method to support Groovy runtime. Not for client usage.
      Specified by:
      selectConstructorAndTransformArguments in interface MetaClass
      Parameters:
      numberOfConstructors - The number of constructors
      arguments - The arguments
      Returns:
      selected index

    • checkInitalised

      protected void checkInitalised()
      checks if the initialisation of the class id complete. This method should be called as a form of assert, it is no way to test if there is still initialisation work to be done. Such logic must be implemented in a different way.
      Throws:
      java.lang.IllegalStateException - if the initialisation is incomplete yet

    • retrieveConstructor

      public MetaMethod retrieveConstructor​(java.lang.Object[] arguments)
      This is a helper method added in Groovy 2.1.0, which is used only by indy. This method is for internal use only.
      Since:
      Groovy 2.1.0

    • setProperties

      public void setProperties​(java.lang.Object bean, java.util.Map map)
      Sets a number of bean properties from the given Map where the keys are the String names of properties and the values are the values of the properties to set

    • getProperty

      public java.lang.Object getProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, boolean useSuper, boolean fromInsideClass)
      Description copied from interface: MetaClass

      Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

      The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary

      Specified by:
      getProperty in interface MetaClass
      Parameters:
      sender - The java.lang.Class instance that requested the property
      object - The Object which the property is being retrieved from
      name - The name of the property
      useSuper - Whether the call is to a super class property
      fromInsideClass - ??
      Returns:
      the given property's value on the object

    • getEffectiveGetMetaProperty

      public MetaProperty getEffectiveGetMetaProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, boolean useSuper)

    • getProperties

      public java.util.List<MetaProperty> getProperties()
      Get all the properties defined for this type
      Specified by:
      getProperties in interface MetaClass
      Specified by:
      getProperties in interface MetaObjectProtocol
      Returns:
      a list of MetaProperty objects
      See Also:
      MetaProperty

    • applyPropertyDescriptors

      protected void applyPropertyDescriptors​(java.beans.PropertyDescriptor[] propertyDescriptors)

    • addMetaBeanProperty

      public void addMetaBeanProperty​(MetaBeanProperty mp)
      Adds a new MetaBeanProperty to this MetaClass
      Specified by:
      addMetaBeanProperty in interface MutableMetaClass
      Parameters:
      mp - The MetaBeanProperty

    • setProperty

      public void setProperty​(java.lang.Class sender, java.lang.Object object, java.lang.String name, java.lang.Object newValue, boolean useSuper, boolean fromInsideClass)

      Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

      The useSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary

      Specified by:
      setProperty in interface MetaClass
      Parameters:
      sender - The java.lang.Class instance that is mutating the property
      object - The Object which the property is being set on
      name - The name of the property
      newValue - The new value of the property to set
      useSuper - Whether the call is to a super class property
      fromInsideClass - Whether the call was invoked from the inside or the outside of the class.

    • getAttribute

      public java.lang.Object getAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, boolean useSuper)
      Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
      Specified by:
      getAttribute in interface MetaClass
      Parameters:
      sender - The class of the object that requested the attribute
      object - The instance
      attribute - The name of the attribute
      useSuper - Whether to look-up on the super class or not
      Returns:
      The attribute value

    • getAttribute

      public java.lang.Object getAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, boolean useSuper, boolean fromInsideClass)
      Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
      Parameters:
      sender - The class of the object that requested the attribute
      object - The instance the attribute is to be retrieved from
      attribute - The name of the attribute
      useSuper - Whether to look-up on the super class or not
      fromInsideClass - Whether the call was invoked from the inside or the outside of the class.
      Returns:
      The attribute value

    • setAttribute

      public void setAttribute​(java.lang.Class sender, java.lang.Object object, java.lang.String attribute, java.lang.Object newValue, boolean useSuper, boolean fromInsideClass)

      Sets an attribute on the given receiver for the specified arguments. The sender is the class that is setting the attribute from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.

      The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary

      Specified by:
      setAttribute in interface MetaClass
      Parameters:
      sender - The java.lang.Class instance that is mutating the property
      object - The Object which the property is being set on
      attribute - The name of the attribute,
      newValue - The new value of the attribute to set
      useSuper - Whether the call is to a super class property
      fromInsideClass - Whether the call was invoked from the inside or the outside of the class

    • getClassNode

      public ClassNode getClassNode()
      Obtains a reference to the original AST for the MetaClass if it is available at runtime
      Specified by:
      getClassNode in interface MetaClass
      Returns:
      The original AST or null if it cannot be returned

    • toString

      public java.lang.String toString()
      Returns a string representation of this metaclass
      Overrides:
      toString in class java.lang.Object

    • addMetaMethod

      public void addMetaMethod​(MetaMethod method)
      adds a MetaMethod to this class. WARNING: this method will not do the neccessary steps for multimethod logic and using this method doesn't mean, that a method added here is replacing another method from a parent class completely. These steps are usually done by initialize, which means if you need these steps, you have to add the method before running initialize the first time.
      Specified by:
      addMetaMethod in interface MutableMetaClass
      Parameters:
      method - the MetaMethod
      See Also:
      initialize()

    • addMetaMethodToIndex

      protected void addMetaMethodToIndex​(MetaMethod method, MetaMethodIndex.Header header)

    • checkIfGroovyObjectMethod

      protected final void checkIfGroovyObjectMethod​(MetaMethod metaMethod)
      Checks if the metaMethod is a method from the GroovyObject interface such as setProperty, getProperty and invokeMethod
      Parameters:
      metaMethod - The metaMethod instance
      See Also:
      GroovyObject

    • isInitialized

      protected boolean isInitialized()

    • setInitialized

      protected void setInitialized​(boolean initialized)

    • chooseMethod

      protected java.lang.Object chooseMethod​(java.lang.String methodName, java.lang.Object methodOrList, java.lang.Class[] arguments)
      Chooses the correct method to use from a list of methods which match by name.
      Parameters:
      methodOrList - the possible methods to choose from
      arguments - the arguments

    • doChooseMostSpecificParams

      protected static java.lang.Object doChooseMostSpecificParams​(java.lang.String theClassName, java.lang.String name, java.util.List matchingMethods, java.lang.Class[] arguments, boolean checkParametersCompatible)

    • createErrorMessageForAmbiguity

      protected static java.lang.String createErrorMessageForAmbiguity​(java.lang.String theClassName, java.lang.String name, java.lang.Class[] arguments, java.util.LinkedList matches)

    • handleMatches

      protected static long handleMatches​(long matchesDistance, java.util.LinkedList matches, java.lang.Object method, long dist)

    • initialize

      public void initialize()
      Complete the initialisation process. After this method is called no methods should be added to the meta class. Invocation of methods or access to fields/properties is forbidden unless this method is called. This method should contain any initialisation code, taking a longer time to complete. An example is the creation of the Reflector. It is suggested to synchronize this method.
      Specified by:
      initialize in interface MetaClass

    • reinitialize

      protected void reinitialize()

    • getMethods

      public java.util.List<MetaMethod> getMethods()
      Retrieves the list of MetaMethods held by the class. This list does not include MetaMethods added by groovy.lang.ExpandoMetaClass.
      Specified by:
      getMethods in interface MetaClass
      Specified by:
      getMethods in interface MetaObjectProtocol
      Returns:
      A list of MetaMethods
      See Also:
      MetaMethod

    • getMetaMethods

      public java.util.List<MetaMethod> getMetaMethods()
      Retrieves the list of MetaMethods held by this class. This list includes MetaMethods added by groovy.lang.ExpandoMetaClass.
      Specified by:
      getMetaMethods in interface MetaClass
      Returns:
      A list of MetaMethods

    • dropStaticMethodCache

      protected void dropStaticMethodCache​(java.lang.String name)

    • dropMethodCache

      protected void dropMethodCache​(java.lang.String name)

    • createPojoCallSite

      public CallSite createPojoCallSite​(CallSite site, java.lang.Object receiver, java.lang.Object[] args)
      Create a CallSite

    • createStaticSite

      public CallSite createStaticSite​(CallSite site, java.lang.Object[] args)
      Create a CallSite

    • createPogoCallSite

      public CallSite createPogoCallSite​(CallSite site, java.lang.Object[] args)
      Create a CallSite

    • createPogoCallCurrentSite

      public CallSite createPogoCallCurrentSite​(CallSite site, java.lang.Class sender, java.lang.Object[] args)
      Create a CallSite

    • createConstructorSite

      public CallSite createConstructorSite​(CallSite site, java.lang.Object[] args)
      Create a CallSite

    • getClassInfo

      public ClassInfo getClassInfo()
      Returns the ClassInfo for the contained Class
      Returns:
      The ClassInfo for the contained class.

    • getVersion

      public int getVersion()
      Returns version of the contained Class
      Returns:
      The version of the contained class.

    • incVersion

      public void incVersion()
      Increments version of the contained Class

    • getAdditionalMetaMethods

      public MetaMethod[] getAdditionalMetaMethods()
      Retrieves a list of additional MetaMethods held by this class
      Returns:
      A list of MetaMethods

    • findPropertyInClassHierarchy

      protected MetaBeanProperty findPropertyInClassHierarchy​(java.lang.String propertyName, CachedClass theClass)

    • findMixinMethod

      protected MetaMethod findMixinMethod​(java.lang.String methodName, java.lang.Class[] arguments)

    • findMethodInClassHierarchy

      protected static MetaMethod findMethodInClassHierarchy​(java.lang.Class instanceKlazz, java.lang.String methodName, java.lang.Class[] arguments, MetaClass metaClass)

    • findOwnMethod

      protected static MetaMethod findOwnMethod​(java.lang.Class instanceKlazz, java.lang.String methodName, java.lang.Class[] arguments, MetaClass metaClass, MetaMethod method)

    • getSubclassMetaMethods

      protected java.lang.Object getSubclassMetaMethods​(java.lang.String methodName)

    • getProperty

      public java.lang.Object getProperty​(java.lang.Object object, java.lang.String property)

      Retrieves a property on the given object for the specified arguments.

      Specified by:
      getProperty in interface MetaObjectProtocol
      Parameters:
      object - The Object which the property is being retrieved from
      property - The name of the property
      Returns:
      The properties value
      See Also:
      MetaClassImpl

    • setProperty

      public void setProperty​(java.lang.Object object, java.lang.String property, java.lang.Object newValue)

      Sets a property on the given object for the specified arguments.

      Specified by:
      setProperty in interface MetaObjectProtocol
      Parameters:
      object - The Object which the property is being retrieved from
      property - The name of the property
      newValue - The new value
      See Also:
      MetaClassImpl

    • getAttribute

      public java.lang.Object getAttribute​(java.lang.Object object, java.lang.String attribute)
      Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
      Specified by:
      getAttribute in interface MetaObjectProtocol
      Parameters:
      object - The object to get the attribute from
      attribute - The name of the attribute
      Returns:
      The attribute value
      See Also:
      MetaClassImpl

    • setAttribute

      public void setAttribute​(java.lang.Object object, java.lang.String attribute, java.lang.Object newValue)
      Sets the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
      Specified by:
      setAttribute in interface MetaObjectProtocol
      Parameters:
      object - The object to get the attribute from
      attribute - The name of the attribute
      newValue - The new value of the attribute
      See Also:
      MetaClassImpl

    • pickMethod

      public MetaMethod pickMethod​(java.lang.String methodName, java.lang.Class[] arguments)
      Selects a method by name and argument classes. This method does not search for an exact match, it searches for a compatible method. For this the method selection mechanism is used as provided by the implementation of this MetaClass. pickMethod may or may not be used during the method selection process when invoking a method. There is no warranty for that.
      Specified by:
      pickMethod in interface MetaClass
      Parameters:
      methodName - the name of the method to pick
      arguments - the method arguments
      Returns:
      a matching MetaMethod or null
      Throws:
      GroovyRuntimeException - if there is more than one matching method

    • hasCustomInvokeMethod

      public boolean hasCustomInvokeMethod()
      indicates is the meta class method invocation for non-static methods is done through a custom invoker object.
      Returns:
      true - if the method invocation is not done by the meta class itself

    • hasCustomStaticInvokeMethod

      public boolean hasCustomStaticInvokeMethod()
      indicates is the meta class method invocation for static methods is done through a custom invoker object.
      Returns:
      true - if the method invocation is not done by the meta class itself

    • clearInvocationCaches

      protected void clearInvocationCaches()
      remove all method call cache entries. This should be done if a method is added during runtime, but not by using a category.

    • isPermissivePropertyAccess

      public boolean isPermissivePropertyAccess()

    • setPermissivePropertyAccess

      public void setPermissivePropertyAccess​(boolean permissivePropertyAccess)