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groovy.beans
[Java] Class BindableASTTransformation

java.lang.Object
  groovy.beans.BindableASTTransformation
All Implemented Interfaces:
ASTTransformation, org.objectweb.asm.Opcodes
@GroovyASTTransformation(phase= CompilePhase.CANONICALIZATION)
public class BindableASTTransformation
extends java.lang.Object

Handles generation of code for the @Bindable annotation when @Vetoable is not present.

Generally, it adds (if needed) a PropertyChangeSupport field and the needed add/removePropertyChangeListener methods to support the listeners.

It also generates the setter and wires the setter through the PropertyChangeSupport.

If a Vetoable annotation is detected it does nothing and lets the VetoableASTTransformation handle all the changes.

Authors:
Danno Ferrin (shemnon)
Chris Reeves

Field Summary
protected static ClassNode boundClassNode

protected ClassNode pcsClassNode

 
Method Summary
protected void addPropertyChangeSupport(ClassNode declaringClass)

Adds the necessary field and methods to support property change support.

protected Statement createBindableStatement(PropertyNode propertyNode, Expression fieldExpression)

protected void createSetterMethod(ClassNode declaringClass, PropertyNode propertyNode, java.lang.String setterName, Statement setterBlock)

Creates a setter method with the given body.
static boolean hasBindableAnnotation(AnnotatedNode node)

Convenience method to see if an annotated node is @Bindable.
protected boolean needsPropertyChangeSupport(ClassNode declaringClass, SourceUnit sourceUnit)

void visit(ASTNode[] nodes, SourceUnit source)

Handles the bulk of the processing, mostly delegating to other methods.
 
Methods inherited from class java.lang.Object
java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()
 

Field Detail

boundClassNode

protected static ClassNode boundClassNode

pcsClassNode

protected ClassNode pcsClassNode

 
Method Detail

addPropertyChangeSupport

protected void addPropertyChangeSupport(ClassNode declaringClass)
Adds the necessary field and methods to support property change support.

Adds a new field: 

 protected final java.beans.PropertyChangeSupport this$PropertyChangeSupport = new java.beans.PropertyChangeSupport(this)"

Also adds support methods: 

 public void addPropertyChangeListener(java.beans.PropertyChangeListener)
 public void addPropertyChangeListener(String, java.beans.PropertyChangeListener)
 public void removePropertyChangeListener(java.beans.PropertyChangeListener)
 public void removePropertyChangeListener(String, java.beans.PropertyChangeListener)
 public java.beans.PropertyChangeListener[] getPropertyChangeListeners()
Parameters:
declaringClass - the class to which we add the support field and methods

createBindableStatement

protected Statement createBindableStatement(PropertyNode propertyNode, Expression fieldExpression)

createSetterMethod

protected void createSetterMethod(ClassNode declaringClass, PropertyNode propertyNode, java.lang.String setterName, Statement setterBlock)
Creates a setter method with the given body.
Parameters:
declaringClass - the class to which we will add the setter
propertyNode - the field to back the setter
setterName - the name of the setter
setterBlock - the statement representing the setter block

hasBindableAnnotation

public static boolean hasBindableAnnotation(AnnotatedNode node)
Convenience method to see if an annotated node is @Bindable.
Parameters:
node - the node to check
Returns:
true if the node is bindable

needsPropertyChangeSupport

protected boolean needsPropertyChangeSupport(ClassNode declaringClass, SourceUnit sourceUnit)

visit

public void visit(ASTNode[] nodes, SourceUnit source)
Handles the bulk of the processing, mostly delegating to other methods.
Parameters:
nodes - the ast nodes
source - the source unit for the nodes

 

Groovy Documentation