Package groovy.beans

Class VetoableASTTransformation

java.lang.Object
groovy.beans.BindableASTTransformation
groovy.beans.VetoableASTTransformation
All Implemented Interfaces:
ASTTransformation, org.objectweb.asm.Opcodes

public class VetoableASTTransformation
extends BindableASTTransformation
Handles generation of code for the @Vetoable annotation, and @Bindable if also present.

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

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

If a Bindable annotation is detected it also adds support similar to what BindableASTTransformation would do.

  • Field Summary

    Fields 
    Modifier and Type Field Description
    protected static ClassNode constrainedClassNode  

    Fields inherited from class groovy.beans.BindableASTTransformation

    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
    VetoableASTTransformation()  
  • Method Summary

    Modifier and Type Method Description
    protected void addVetoableChangeSupport​(ClassNode declaringClass)
    Adds the necessary field and methods to support vetoable change support.
    protected Statement createConstrainedStatement​(PropertyNode propertyNode, Expression fieldExpression)
    Creates a statement body similar to: this.fireVetoableChange("field", field, field = value)
    protected Statement createSetStatement​(Expression fieldExpression)
    Creates a statement body similar to: field = value.
    protected void createSetterMethod​(ClassNode declaringClass, PropertyNode propertyNode, String setterName, Statement setterBlock)
    Creates a setter method with the given body.
    static boolean hasVetoableAnnotation​(AnnotatedNode node)
    Convenience method to see if an annotated node is @Vetoable.
    protected boolean needsVetoableChangeSupport​(ClassNode declaringClass, SourceUnit sourceUnit)
    Snoops through the declaring class and all parents looking for a field of type VetoableChangeSupport.
    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

    • constrainedClassNode

      protected static final ClassNode constrainedClassNode
  • Constructor Details

    • VetoableASTTransformation

      public VetoableASTTransformation()
  • Method Details

    • hasVetoableAnnotation

      public static boolean hasVetoableAnnotation​(AnnotatedNode node)
      Convenience method to see if an annotated node is @Vetoable.
      Parameters:
      node - the node to check
      Returns:
      true if the node is constrained
    • 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
      Overrides:
      visit in class BindableASTTransformation
      Parameters:
      nodes - the AST nodes
      source - the source unit for the nodes
    • createConstrainedStatement

      protected Statement createConstrainedStatement​(PropertyNode propertyNode, Expression fieldExpression)
      Creates a statement body similar to: this.fireVetoableChange("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
    • createSetStatement

      protected Statement createSetStatement​(Expression fieldExpression)
      Creates a statement body similar to: field = value.

      Used when the field is not also @Bindable.

      Parameters:
      fieldExpression - a field expression for setting the property value
      Returns:
      the created statement
    • needsVetoableChangeSupport

      protected boolean needsVetoableChangeSupport​(ClassNode declaringClass, SourceUnit sourceUnit)
      Snoops through the declaring class and all parents looking for a field of type VetoableChangeSupport. Remembers the field and returns false if found otherwise returns true to indicate that such support should be added.
      Parameters:
      declaringClass - the class to search
      Returns:
      true if vetoable change support should be added
    • createSetterMethod

      protected void createSetterMethod​(ClassNode declaringClass, PropertyNode propertyNode, String setterName, Statement setterBlock)
      Creates a setter method with the given body.

      This differs from normal setters in that we need to add a declared exception java.beans.PropertyVetoException

      Overrides:
      createSetterMethod in class BindableASTTransformation
      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
    • addVetoableChangeSupport

      protected void addVetoableChangeSupport​(ClassNode declaringClass)
      Adds the necessary field and methods to support vetoable change support.

      Adds a new field: "protected final java.beans.VetoableChangeSupport this$vetoableChangeSupport = new java.beans.VetoableChangeSupport(this)"

      Also adds support methods: public void addVetoableChangeListener(java.beans.VetoableChangeListener) public void addVetoableChangeListener(String, java.beans.VetoableChangeListener) public void removeVetoableChangeListener(java.beans.VetoableChangeListener) public void removeVetoableChangeListener(String, java.beans.VetoableChangeListener) public java.beans.VetoableChangeListener[] getVetoableChangeListeners()

      Parameters:
      declaringClass - the class to which we add the support field and methods