Package org.apache.bcel.classfile

Class Constant

java.lang.Object
org.apache.bcel.classfile.Constant
All Implemented Interfaces:
Serializable, Cloneable, Node
Direct Known Subclasses:
ConstantClass, ConstantCP, ConstantDouble, ConstantFloat, ConstantInteger, ConstantInvokeDynamic, ConstantLong, ConstantMethodHandle, ConstantMethodType, ConstantNameAndType, ConstantString, ConstantUtf8
public abstract class Constant extends Object implements Cloneable, Node, Serializable
Abstract superclass for classes to represent the different constant types in the constant pool of a class file. The classes keep closely to the JVM specification.
See Also:

  • Field Details

    • tag

      protected byte tag

  • Method Details

    • accept

      public abstract void accept(Visitor v)
      Called by objects that are traversing the nodes of the tree implicitely 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
      Parameters:
      v - Visitor object

    • dump

      public abstract void dump(DataOutputStream file) throws IOException
      Throws:
      IOException

    • getTag

      public final byte getTag()
      Returns:
      Tag of constant, i.e., its type. No setTag() method to avoid confusion.

    • toString

      public String toString()
      Overrides:
      toString in class Object
      Returns:
      String representation.

    • copy

      public Constant copy()
      Returns:
      deep copy of this constant

    • clone

      public Constant clone()
      Overrides:
      clone in class Object

    • getComparator

      public static BCELComparator getComparator()
      Returns:
      Comparison strategy object

    • setComparator

      public static void setComparator(BCELComparator comparator)
      Parameters:
      comparator - Comparison strategy object

    • equals

      public boolean equals(Object obj)
      Return value as defined by given BCELComparator strategy. By default two Constant objects are said to be equal when the result of toString() is equal.
      Overrides:
      equals in class Object
      See Also:

    • hashCode

      public int hashCode()
      Return value as defined by given BCELComparator strategy. By default return the hashcode of the result of toString().
      Overrides:
      hashCode in class Object
      See Also: