Class Signature

java.lang.Object
org.apache.bcel.classfile.Attribute
org.apache.bcel.classfile.Signature
All Implemented Interfaces:
Cloneable, Node

public final class Signature extends Attribute
This class is derived from Attribute and represents a reference to a GJ attribute.
See Also:
  • Field Details

    • signatureIndex

      private int signatureIndex
  • Constructor Details

    • Signature

      Signature(int nameIndex, int length, DataInput input, ConstantPool constantPool) throws IOException
      Constructs object from file stream.
      Parameters:
      nameIndex - Index in constant pool to CONSTANT_Utf8
      length - Content length in bytes
      input - Input stream
      constantPool - Array of constants
      Throws:
      IOException - if an I/O error occurs.
    • Signature

      public Signature(int nameIndex, int length, int signatureIndex, ConstantPool constantPool)
      Parameters:
      nameIndex - Index in constant pool to CONSTANT_Utf8
      length - Content length in bytes
      signatureIndex - Index in constant pool to CONSTANT_Utf8
      constantPool - Array of constants
    • Signature

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

    • identStart

      private static boolean identStart(int ch)
    • isActualParameterList

      public static boolean isActualParameterList(String s)
    • isFormalParameterList

      public static boolean isFormalParameterList(String s)
    • matchGJIdent

      private static void matchGJIdent(Signature.MyByteArrayInputStream in, StringBuilder buf)
    • matchIdent

      private static void matchIdent(Signature.MyByteArrayInputStream in, StringBuilder buf)
    • translate

      public static String translate(String s)
    • 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(DataOutputStream file) throws IOException
      Dump source file attribute to file stream in binary format.
      Overrides:
      dump in class Attribute
      Parameters:
      file - Output file stream
      Throws:
      IOException - if an I/O error occurs.
    • getSignature

      public String getSignature()
      Returns:
      GJ signature.
    • getSignatureIndex

      public int getSignatureIndex()
      Returns:
      Index in constant pool of source file name.
    • setSignatureIndex

      public void setSignatureIndex(int signatureIndex)
      Parameters:
      signatureIndex - the index info the constant pool of this signature
    • toString

      public String toString()
      Overrides:
      toString in class Attribute
      Returns:
      String representation