Groovy Documentation

## 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), java.lang.Object#wait(long, int), 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