Class NestMembers

  • All Implemented Interfaces:
    java.lang.Cloneable, Node

    public final class NestMembers
    extends Attribute
    This class is derived from Attribute and records the classes and interfaces that are authorized to claim membership in the nest hosted by the current class or interface. There may be at most one NestMembers attribute in a ClassFile structure.
    See Also:
    Attribute
    • Field Detail

      • classes

        private int[] classes
    • Constructor Detail

      • NestMembers

        NestMembers​(int nameIndex,
                    int length,
                    java.io.DataInput input,
                    ConstantPool constantPool)
             throws java.io.IOException
        Construct object from input stream.
        Parameters:
        nameIndex - Index in constant pool
        length - Content length in bytes
        input - Input stream
        constantPool - Array of constants
        Throws:
        java.io.IOException - if an I/O error occurs.
      • NestMembers

        public NestMembers​(int nameIndex,
                           int length,
                           int[] classes,
                           ConstantPool constantPool)
        Parameters:
        nameIndex - Index in constant pool
        length - Content length in bytes
        classes - Table of indices in constant pool
        constantPool - Array of constants
      • NestMembers

        public NestMembers​(NestMembers c)
        Initialize from another object. Note that both objects use the same references (shallow copy). Use copy() for a physical copy.
        Parameters:
        c - Source to copy.
    • Method Detail

      • accept

        public void accept​(Visitor v)
        Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
        Specified by:
        accept in interface Node
        Specified by:
        accept in class Attribute
        Parameters:
        v - Visitor object
      • copy

        public Attribute copy​(ConstantPool constantPool)
        Specified by:
        copy in class Attribute
        Parameters:
        constantPool - constant pool to save.
        Returns:
        deep copy of this attribute
      • dump

        public void dump​(java.io.DataOutputStream file)
                  throws java.io.IOException
        Dump NestMembers attribute to file stream in binary format.
        Overrides:
        dump in class Attribute
        Parameters:
        file - Output file stream
        Throws:
        java.io.IOException - if an I/O error occurs.
      • getClasses

        public int[] getClasses()
        Returns:
        array of indices into constant pool of class names.
      • getClassNames

        public java.lang.String[] getClassNames()
        Returns:
        string array of class names
      • getNumberClasses

        public int getNumberClasses()
        Returns:
        Length of classes table.
      • setClasses

        public void setClasses​(int[] classes)
        Parameters:
        classes - the list of class indexes Also redefines number_of_classes according to table length.
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class Attribute
        Returns:
        String representation, i.e., a list of classes.