Package groovy.beans

# Class BindableASTTransformation

java.lang.Object
groovy.beans.BindableASTTransformation

All Implemented Interfaces:
  `ASTTransformation`, `org.objectweb.asm.Opcodes`

Direct Known Subclasses:
  `VetoableASTTransformation`

public class BindableASTTransformation extends Object implements ASTTransformation, org.objectweb.asm.Opcodes
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.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected static final ClassNode`
  `boundClassNode`

  ### Fields inherited from interface org.objectweb.asm.Opcodes

  `AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V9`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `BindableASTTransformation()`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `protected void`
  `addPropertyChangeSupport(ClassNode declaringClass)`
  Adds the necessary field and methods to support property change support.
  `protected Statement`
  `createBindableStatement(PropertyNode propertyNode, Expression fieldExpression)`
  Creates a statement body similar to: `this.firePropertyChange("field", field, field = value)`
  `protected void`
  `createSetterMethod(ClassNode declaringClass, PropertyNode propertyNode, 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)`
  Snoops through the declaring class and all parents looking for methods `void addPropertyChangeListener(PropertyChangeListener)`, `void removePropertyChangeListener(PropertyChangeListener)`, and `void firePropertyChange(String, Object, Object)`.
  `void`
  `visit(ASTNode[] nodes, SourceUnit source)`
  Handles the bulk of the processing, mostly delegating to other methods.

  ### Methods inherited from class java.lang.Object

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

- ## Field Details

  - ### boundClassNode

    protected static final ClassNode boundClassNode

- ## Constructor Details

  - ### BindableASTTransformation

    public BindableASTTransformation()

- ## Method Details

  - ### 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

  - ### visit

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

  - ### createBindableStatement

    protected Statement createBindableStatement(PropertyNode propertyNode, Expression fieldExpression)
    Creates a statement body similar to: `this.firePropertyChange("field", field, field = value)`
    Parameters:
      `propertyNode` - the field node for the property
      `fieldExpression` - a field expression for setting the property value
    Returns:
      the created statement

  - ### createSetterMethod

    protected void createSetterMethod(ClassNode declaringClass, PropertyNode propertyNode, 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

  - ### needsPropertyChangeSupport

    protected boolean needsPropertyChangeSupport(ClassNode declaringClass, SourceUnit sourceUnit)
    Snoops through the declaring class and all parents looking for methods `void addPropertyChangeListener(PropertyChangeListener)`, `void removePropertyChangeListener(PropertyChangeListener)`, and `void firePropertyChange(String, Object, Object)`. If any are defined all must be defined or a compilation error results.
    Parameters:
      `declaringClass` - the class to search
      `sourceUnit` - the source unit, for error reporting. `@NotNull`.
    Returns:
      true if property change support should be added

  - ### 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