MetaClassImpl (groovy 2.4.21 API)

groovy.lang.MetaClassImpl

All Implemented Interfaces and Traits:

MetaClass, MutableMetaClass
```
public class MetaClassImpl
extends Object
```
Allows methods to be dynamically added to existing classes at runtime
Authors:
James Strachan
Guillaume Laforge
Jochen "blackdrag" Theodorou
Graeme Rocher
Alex Tkachman
Roshan Dawrani
See Also:
MetaClass

Nested Class Summary

Nested classes
Modifiers	Name	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
Modifiers	Name	Description
`static Object[]`	`EMPTY_ARGUMENTS`
`protected static String`	`INVOKE_METHOD_METHOD`
`protected static String`	`METHOD_MISSING`
`protected static String`	`PROPERTY_MISSING`
`protected static String`	`STATIC_METHOD_MISSING`
`protected static String`	`STATIC_PROPERTY_MISSING`
`protected MetaMethod`	`getPropertyMethod`
`protected MetaMethod`	`invokeMethodMethod`
`protected boolean`	`isGroovyObject`
`protected boolean`	`isMap`
`protected MetaMethodIndex`	`metaMethodIndex`
`protected MetaClassRegistry`	`registry`
`protected MetaMethod`	`setPropertyMethod`
`protected CachedClass`	`theCachedClass`
`protected Class`	`theClass`

Constructor Summary

Constructors
Constructor and description
`MetaClassImpl (Class theClass, MetaMethod[] add)` Constructor
`MetaClassImpl (Class theClass)` Constructor that sets the methods to null
`MetaClassImpl (MetaClassRegistry registry, Class theClass, MetaMethod[] add)` Constructor with registry
`MetaClassImpl (MetaClassRegistry registry, Class theClass)` Constructor with registry setting methods to null

Methods Summary

Methods
Type Params	Return Type	Name and 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, Header header)`
	`void`	`addNewInstanceMethod(Method method)` Adds an instance method to this metaclass.
	`void`	`addNewStaticMethod(Method method)` Adds a static method to this metaclass.
	`protected void`	`applyPropertyDescriptors(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 Object`	`chooseMethod(String methodName, Object methodOrList, 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, Object[] args)` Create a CallSite
	`protected static String`	`createErrorMessageForAmbiguity(String theClassName, String name, Class[] arguments, LinkedList matches)`
	`CallSite`	`createPogoCallCurrentSite(CallSite site, Class sender, Object[] args)` Create a CallSite
	`CallSite`	`createPogoCallSite(CallSite site, Object[] args)` Create a CallSite
	`CallSite`	`createPojoCallSite(CallSite site, Object receiver, Object[] args)` Create a CallSite
	`CallSite`	`createStaticSite(CallSite site, Object[] args)` Create a CallSite
	`protected MetaMethod`	`createTransformMetaMethod(MetaMethod method)`
	`protected static Object`	`doChooseMostSpecificParams(String theClassName, String name, List matchingMethods, Class[] arguments, boolean checkParametersCompatible)`
	`protected void`	`dropMethodCache(String name)`
	`protected void`	`dropStaticMethodCache(String name)`
	`protected static MetaMethod`	`findMethodInClassHierarchy(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass)`
	`protected MetaMethod`	`findMixinMethod(String methodName, Class[] arguments)`
	`protected static MetaMethod`	`findOwnMethod(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass, MetaMethod method)`
	`protected MetaBeanProperty`	`findPropertyInClassHierarchy(String propertyName, CachedClass theClass)`
	`MetaMethod[]`	`getAdditionalMetaMethods()` Retrieves a list of additional MetaMethods held by this class
	`Object`	`getAttribute(Class sender, Object object, String attribute, boolean useSuper)` Retrieves the value of an attribute (field).
	`Object`	`getAttribute(Class sender, Object object, String attribute, boolean useSuper, boolean fromInsideClass)` Retrieves the value of an attribute (field).
	`Object`	`getAttribute(Object object, 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(Class sender, Object object, String name, boolean useSuper)` todo these special cases should be special MetaClasses maybe
	`MetaMethod`	`getMetaMethod(String name, Object[] argTypes)` @see MetaObjectProtocol#getMetaMethod(String, Object[])
	`List<MetaMethod>`	`getMetaMethods()` Retrieves the list of MetaMethods held by this class.
	`MetaProperty`	`getMetaProperty(String name)` @see MetaObjectProtocol#getMetaProperty(String)
	`MetaMethod`	`getMethodWithCaching(Class sender, String methodName, Object[] arguments, boolean isCallToSuper)`
	`MetaMethod`	`getMethodWithoutCaching(Class sender, String methodName, Class[] arguments, boolean isCallToSuper)`
	`List<MetaMethod>`	`getMethods()` Retrieves the list of MetaMethods held by the class.
	`List<MetaProperty>`	`getProperties()` Get all the properties defined for this type
	`Object`	`getProperty(Class sender, Object object, String name, boolean useSuper, boolean fromInsideClass)` @return the given property's value on the object
	`Object`	`getProperty(Object object, String property)`
	`MetaClassRegistry`	`getRegistry()` Returns the registry for this metaclass
	`MetaMethod`	`getStaticMetaMethod(String name, Object[] argTypes)` @see MetaObjectProtocol#getStaticMetaMethod(String, Object[])
	`protected Object`	`getSubclassMetaMethods(String methodName)`
	`protected LinkedList<CachedClass>`	`getSuperClasses()`
	`CachedClass`	`getTheCachedClass()` Returns the cached class for this metaclass
	`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, LinkedList matches, 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(Object obj, String name)` @see MetaObjectProtocol#hasProperty(Object,String)
	`void`	`incVersion()` Increments version of the contained Class
	`void`	`initialize()` Complete the initialisation process.
	`Object`	`invokeConstructor(Object[] arguments)`
	`Object`	`invokeMethod(Object object, String methodName, Object arguments)` Invoke a method on the given object with the given arguments.
	`Object`	`invokeMethod(Object object, String methodName, Object[] originalArguments)` Invokes a method on the given receiver for the specified arguments.
	`Object`	`invokeMethod(Class sender, Object object, String methodName, Object[] originalArguments, boolean isCallToSuper, boolean fromInsideClass)`
	`Object`	`invokeMissingMethod(Object instance, String methodName, Object[] arguments)` Invoke a missing method on the given object with the given arguments.
	`Object`	`invokeMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter)` Invoke a missing property on the given object with the given arguments.
	`Object`	`invokeStaticMethod(Object object, String methodName, Object[] arguments)`
	`protected Object`	`invokeStaticMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter)` Hook to deal with the case of MissingProperty for static properties.
	`boolean`	`isGroovyObject()` Return wether 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.
	`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(String methodName, Class[] arguments)` Selects a method by name and argument classes.
	`List`	`respondsTo(Object obj, String name, Object[] argTypes)` @see MetaObjectProtocol#respondsTo(Object, String, Object[])
	`List`	`respondsTo(Object obj, String name)` @see MetaObjectProtocol#respondsTo(Object, String)
	`Constructor`	`retrieveConstructor(Class[] arguments)`
	`MetaMethod`	`retrieveConstructor(Object[] arguments)` This is a helper method added in Groovy 2.1.0, which is used only by indy.
	`MetaMethod`	`retrieveStaticMethod(String methodName, Object[] arguments)`
	`int`	`selectConstructorAndTransformArguments(int numberOfConstructors, Object[] arguments)`
	`void`	`setAttribute(Class sender, Object object, String attribute, Object newValue, boolean useSuper, boolean fromInsideClass)`
	`void`	`setAttribute(Object object, String attribute, Object newValue)` Sets the value of an attribute (field).
	`void`	`setProperties(Object bean, 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(Class sender, Object object, String name, Object newValue, boolean useSuper, boolean fromInsideClass)`
	`void`	`setProperty(Object object, String property, Object newValue)`
	`String`	`toString()` todo there is no CompileUnit in scope so class name checking won't work but that mostly affects the bytecode generation rather than viewing the AST

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class Object`	`wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll`

- Field Detail
  - public static final Object[] EMPTY_ARGUMENTS
  - protected static final String INVOKE_METHOD_METHOD
  - protected static final String METHOD_MISSING
  - protected static final String PROPERTY_MISSING
  - protected static final String STATIC_METHOD_MISSING
  - protected static final String STATIC_PROPERTY_MISSING
  - protected MetaMethod getPropertyMethod
  - protected MetaMethod invokeMethodMethod
  - protected final boolean isGroovyObject
  - protected final boolean isMap
  - protected final MetaMethodIndex metaMethodIndex
  - protected MetaClassRegistry registry
  - protected MetaMethod setPropertyMethod
  - protected final CachedClass theCachedClass
  - protected final Class theClass
- Constructor Detail
  - public MetaClassImpl(Class theClass, MetaMethod[] add)
    
    Constructor
    Parameters:
    theClass - The class this is the metaclass dor
    add - The methods for this class
  - public MetaClassImpl(Class theClass)
    
    Constructor that sets the methods to null
    Parameters:
    theClass - The class this is the metaclass dor
  - public MetaClassImpl(MetaClassRegistry registry, Class theClass, MetaMethod[] add)
    
    Constructor with registry
    Parameters:
    registry - The metaclass registry for this MetaClass
    theClass - The class
    add - The methods
  - public MetaClassImpl(MetaClassRegistry registry, Class theClass)
    
    Constructor with registry setting methods to null
    Parameters:
    registry - The metaclass registry for this MetaClass
    theClass - The class
- Method Detail
  - public void addMetaBeanProperty(MetaBeanProperty mp)
    
    Adds a new MetaBeanProperty to this MetaClass
    Parameters:
    mp - The MetaBeanProperty
  - 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.
    Parameters:
    method - the MetaMethod
    See Also:
    initialize()
  - protected void addMetaMethodToIndex(MetaMethod method, Header header)
  - public void addNewInstanceMethod(Method method)
    
    Adds an instance method to this metaclass.
    Parameters:
    method - The method to be added
  - public void addNewStaticMethod(Method method)
    
    Adds a static method to this metaclass.
    Parameters:
    method - The method to be added
  - protected void applyPropertyDescriptors(PropertyDescriptor[] propertyDescriptors)
  - 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
  - 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:
    IllegalStateException if the initialisation is incomplete yet
  - protected Object chooseMethod(String methodName, Object methodOrList, 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
  - 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.
  - public CallSite createConstructorSite(CallSite site, Object[] args)
    
    Create a CallSite
  - protected static String createErrorMessageForAmbiguity(String theClassName, String name, Class[] arguments, LinkedList matches)
  - public CallSite createPogoCallCurrentSite(CallSite site, Class sender, Object[] args)
    
    Create a CallSite
  - public CallSite createPogoCallSite(CallSite site, Object[] args)
    
    Create a CallSite
  - public CallSite createPojoCallSite(CallSite site, Object receiver, Object[] args)
    
    Create a CallSite
  - public CallSite createStaticSite(CallSite site, Object[] args)
    
    Create a CallSite
  - protected MetaMethod createTransformMetaMethod(MetaMethod method)
  - protected static Object doChooseMostSpecificParams(String theClassName, String name, List matchingMethods, Class[] arguments, boolean checkParametersCompatible)
  - protected void dropMethodCache(String name)
  - protected void dropStaticMethodCache(String name)
  - protected static MetaMethod findMethodInClassHierarchy(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass)
  - protected MetaMethod findMixinMethod(String methodName, Class[] arguments)
  - protected static MetaMethod findOwnMethod(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass, MetaMethod method)
  - protected MetaBeanProperty findPropertyInClassHierarchy(String propertyName, CachedClass theClass)
  - public MetaMethod[] getAdditionalMetaMethods()
    
    Retrieves a list of additional MetaMethods held by this class
    Returns:
    A list of MetaMethods
  - public Object getAttribute(Class sender, Object object, 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.
    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
  - public Object getAttribute(Class sender, Object object, 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
  - public Object getAttribute(Object object, String attribute)
    
    Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    Parameters:
    object - The object to get the attribute from
    attribute - The name of the attribute
    Returns:
    The attribute value
  - public ClassInfo getClassInfo()
    
    Returns the ClassInfo for the contained Class
    Returns:
    The ClassInfo for the contained class.
  - public ClassNode getClassNode()
    
    Obtains a reference to the original AST for the MetaClass if it is available at runtime
    Returns:
    The original AST or null if it cannot be returned
  - public MetaProperty getEffectiveGetMetaProperty(Class sender, Object object, String name, boolean useSuper)
    
    todo these special cases should be special MetaClasses maybe
  - public MetaMethod getMetaMethod(String name, Object[] argTypes)
    
    See Also:
    MetaObjectProtocol.getMetaMethod
  - public List<MetaMethod> getMetaMethods()
    
    Retrieves the list of MetaMethods held by this class. This list includes MetaMethods added by groovy.lang.ExpandoMetaClass.
    Returns:
    A list of MetaMethods
  - public MetaProperty getMetaProperty(String name)
    
    See Also:
    MetaObjectProtocol.getMetaProperty
  - public MetaMethod getMethodWithCaching(Class sender, String methodName, Object[] arguments, boolean isCallToSuper)
  - public MetaMethod getMethodWithoutCaching(Class sender, String methodName, Class[] arguments, boolean isCallToSuper)
  - public List<MetaMethod> getMethods()
    
    Retrieves the list of MetaMethods held by the class. This list does not include MetaMethods added by groovy.lang.ExpandoMetaClass.
    Returns:
    A list of MetaMethods
  - public List<MetaProperty> getProperties()
    
    Get all the properties defined for this type
    Returns:
    a list of MetaProperty objects
  - public Object getProperty(Class sender, Object object, String name, boolean useSuper, boolean fromInsideClass)
    
    Returns:
    the given property's value on the object
  - public Object getProperty(Object object, String property)
    
    Retrieves a property on the given object for the specified arguments.
    Parameters:
    object - The Object which the property is being retrieved from
    property - The name of the property
    Returns:
    The properties value
  - public MetaClassRegistry getRegistry()
    
    Returns the registry for this metaclass
    Returns:
    The resgistry
  - public MetaMethod getStaticMetaMethod(String name, Object[] argTypes)
    
    See Also:
    MetaObjectProtocol.getStaticMetaMethod
  - protected Object getSubclassMetaMethods(String methodName)
  - protected LinkedList<CachedClass> getSuperClasses()
  - public final CachedClass getTheCachedClass()
    
    Returns the cached class for this metaclass
    Returns:
    The cached class.
  - public Class getTheClass()
    
    Returns the class this object this is the metaclass of.
    Returns:
    The class contained by this metaclass
  - public int getVersion()
    
    Returns version of the contained Class
    Returns:
    The version of the contained class.
  - protected static long handleMatches(long matchesDistance, LinkedList matches, Object method, long dist)
  - 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
  - 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
  - public MetaProperty hasProperty(Object obj, String name)
    
    See Also:
    MetaObjectProtocol.hasProperty
  - public void incVersion()
    
    Increments version of the contained Class
  - 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.
  - public Object invokeConstructor(Object[] arguments)
  - public Object invokeMethod(Object object, String methodName, Object arguments)
    
    Invoke a method on the given object with the given arguments.
    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.
  - public Object invokeMethod(Object object, String methodName, 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.
    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
  - public Object invokeMethod(Class sender, Object object, String methodName, 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
    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
  - public Object invokeMissingMethod(Object instance, String methodName, Object[] arguments)
    
    Invoke a missing method on the given object with the given arguments.
    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.
  - public Object invokeMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter)
    
    Invoke a missing property on the given object with the given arguments.
    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 - Wether the method is a getter
    Returns:
    The result of the method invocation.
  - public Object invokeStaticMethod(Object object, String methodName, Object[] arguments)
  - protected Object invokeStaticMissingProperty(Object instance, String propertyName, 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
  - public boolean isGroovyObject()
    
    Return wether the class represented by this metaclass instance is an instance of the GroovyObject class
    Returns:
    true if this is a groovy class, false otherwise.
  - protected boolean isInitialized()
  - public boolean isModified()
    
    Returns whether this MetaClassImpl has been modified. Since MetaClassImpl is not designed for modification this method always returns false
    Returns:
    false
  - 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)
  - public MetaMethod pickMethod(String methodName, 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.
    throws:
    GroovyRuntimeException if there is more than one matching method
    
    Returns:
    a matching MetaMethod or null
    Parameters:
    methodName - the name of the method to pick
    arguments - the method arguments
  - public List respondsTo(Object obj, String name, Object[] argTypes)
    
    See Also:
    MetaObjectProtocol.respondsTo
  - public List respondsTo(Object obj, String name)
    
    See Also:
    MetaObjectProtocol.respondsTo
  - public Constructor retrieveConstructor(Class[] arguments)
  - public MetaMethod retrieveConstructor(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
  - public MetaMethod retrieveStaticMethod(String methodName, Object[] arguments)
  - public int selectConstructorAndTransformArguments(int numberOfConstructors, Object[] arguments)
  - public void setAttribute(Class sender, Object object, String attribute, 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
    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
  - public void setAttribute(Object object, String attribute, Object newValue)
    
    Sets the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    Parameters:
    object - The object to get the attribute from
    attribute - The name of the attribute
    newValue - The new value of the attribute
  - public void setProperties(Object bean, 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
  - public void setProperty(Class sender, Object object, String name, 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
    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.
  - public void setProperty(Object object, String property, Object newValue)
    
    Sets a property on the given object for the specified arguments.
    Parameters:
    object - The Object which the property is being retrieved from
    property - The name of the property
    newValue - The new value
  - public String toString()
    
    todo there is no CompileUnit in scope so class name checking won't work but that mostly affects the bytecode generation rather than viewing the AST

| Detail:
Field
Constructor
Method

[Java] Class MetaClassImpl

Nested Class Summary

Field Summary

Constructor Summary

Methods Summary

Inherited Methods Summary

Field Detail

public static final Object[] EMPTY_ARGUMENTS

protected static final String INVOKE_METHOD_METHOD

protected static final String METHOD_MISSING

protected static final String PROPERTY_MISSING

protected static final String STATIC_METHOD_MISSING

protected static final String STATIC_PROPERTY_MISSING

protected MetaMethod getPropertyMethod

protected MetaMethod invokeMethodMethod

protected final boolean isGroovyObject

protected final boolean isMap

protected final MetaMethodIndex metaMethodIndex

protected MetaClassRegistry registry

protected MetaMethod setPropertyMethod

protected final CachedClass theCachedClass

protected final Class theClass

Constructor Detail

public MetaClassImpl(Class theClass, MetaMethod[] add)

public MetaClassImpl(Class theClass)

public MetaClassImpl(MetaClassRegistry registry, Class theClass, MetaMethod[] add)

public MetaClassImpl(MetaClassRegistry registry, Class theClass)

Method Detail

public void addMetaBeanProperty(MetaBeanProperty mp)

public void addMetaMethod(MetaMethod method)

protected void addMetaMethodToIndex(MetaMethod method, Header header)

public void addNewInstanceMethod(Method method)

public void addNewStaticMethod(Method method)

protected void applyPropertyDescriptors(PropertyDescriptor[] propertyDescriptors)

protected final void checkIfGroovyObjectMethod(MetaMethod metaMethod)

protected void checkInitalised()

protected Object chooseMethod(String methodName, Object methodOrList, Class[] arguments)

protected void clearInvocationCaches()

public CallSite createConstructorSite(CallSite site, Object[] args)

protected static String createErrorMessageForAmbiguity(String theClassName, String name, Class[] arguments, LinkedList matches)

public CallSite createPogoCallCurrentSite(CallSite site, Class sender, Object[] args)

public CallSite createPogoCallSite(CallSite site, Object[] args)

public CallSite createPojoCallSite(CallSite site, Object receiver, Object[] args)

public CallSite createStaticSite(CallSite site, Object[] args)

protected MetaMethod createTransformMetaMethod(MetaMethod method)

protected static Object doChooseMostSpecificParams(String theClassName, String name, List matchingMethods, Class[] arguments, boolean checkParametersCompatible)

protected void dropMethodCache(String name)

protected void dropStaticMethodCache(String name)

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

protected MetaMethod findMixinMethod(String methodName, Class[] arguments)

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

protected MetaBeanProperty findPropertyInClassHierarchy(String propertyName, CachedClass theClass)

public MetaMethod[] getAdditionalMetaMethods()

public Object getAttribute(Class sender, Object object, String attribute, boolean useSuper)

public Object getAttribute(Class sender, Object object, String attribute, boolean useSuper, boolean fromInsideClass)

public Object getAttribute(Object object, String attribute)

public ClassInfo getClassInfo()

public ClassNode getClassNode()

public MetaProperty getEffectiveGetMetaProperty(Class sender, Object object, String name, boolean useSuper)

public MetaMethod getMetaMethod(String name, Object[] argTypes)

public List<MetaMethod> getMetaMethods()

public MetaProperty getMetaProperty(String name)

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

public MetaMethod getMethodWithoutCaching(Class sender, String methodName, Class[] arguments, boolean isCallToSuper)

public List<MetaMethod> getMethods()

public List<MetaProperty> getProperties()

public Object getProperty(Class sender, Object object, String name, boolean useSuper, boolean fromInsideClass)

public Object getProperty(Object object, String property)

public MetaClassRegistry getRegistry()

public MetaMethod getStaticMetaMethod(String name, Object[] argTypes)

protected Object getSubclassMetaMethods(String methodName)

protected LinkedList<CachedClass> getSuperClasses()

public final CachedClass getTheCachedClass()

public Class getTheClass()

public int getVersion()

protected static long handleMatches(long matchesDistance, LinkedList matches, Object method, long dist)

public boolean hasCustomInvokeMethod()

public boolean hasCustomStaticInvokeMethod()

public MetaProperty hasProperty(Object obj, String name)

public void incVersion()