Package groovy.beans

Class 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 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_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, ASM4, ASM5, ASM6, ASM7, ASM8_EXPERIMENTAL, 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, V9

    • Field Detail

      • constrainedClassNode

        protected static ClassNode constrainedClassNode

    • Constructor Detail

      • VetoableASTTransformation

        public VetoableASTTransformation()

    • Method Detail

      • 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

      • 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