edu.rice.cs.cunit.classFile.constantPool
Class EmptyPoolInfo

java.lang.Object
  extended by edu.rice.cs.cunit.classFile.constantPool.APoolInfo
      extended by edu.rice.cs.cunit.classFile.constantPool.EmptyPoolInfo

public class EmptyPoolInfo
extends APoolInfo

Represents an empty slot in the constant pool.

Author:
Mathias Ricken

Field Summary
private static EmptyPoolInfo _instance
          Singleton instance.
 
Fields inherited from class edu.rice.cs.cunit.classFile.constantPool.APoolInfo
_constantPool, _type, CONSTANT_Class, CONSTANT_Double, CONSTANT_Fieldref, CONSTANT_Float, CONSTANT_Integer, CONSTANT_InterfaceMethodref, CONSTANT_Long, CONSTANT_Methodref, CONSTANT_NameAndType, CONSTANT_String, CONSTANT_Utf8_ASCII, CONSTANT_Utf8_Unicode
 
Constructor Summary
private EmptyPoolInfo()
          Singleton constructor.
 
Method Summary
 boolean equals(java.lang.Object obj)
          Compare this object and another one.
<R,D> R
execute(IPoolInfoVisitor<R,D> visitor, D data)
          Execute a visitor.
 int hashCode()
          Return a hash code.
 void reindex()
          Reindex constant pool indices.
 void resolve()
          Resolve constant pool objects.
static EmptyPoolInfo singleton()
          Singleton accessor.
 java.lang.String toString()
          Return a human-readable version of this constant pool object.
 java.lang.String toStringVerbose()
          Return a human-readable version of this constant pool object.
 void write(java.io.DataOutputStream dos)
          Write this constant pool object into the stream, including the type byte.
 
Methods inherited from class edu.rice.cs.cunit.classFile.constantPool.APoolInfo
inPool, read
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

_instance

private static EmptyPoolInfo _instance
Singleton instance.

Constructor Detail

EmptyPoolInfo

private EmptyPoolInfo()
Singleton constructor.

Method Detail

singleton

public static EmptyPoolInfo singleton()
Singleton accessor.

Returns:
singleton

write

public void write(java.io.DataOutputStream dos)
           throws java.io.IOException
Write this constant pool object into the stream, including the type byte.

Specified by:
write in class APoolInfo
Parameters:
dos - stream
Throws:
java.io.IOException

resolve

public void resolve()
Resolve constant pool objects. This makes sure that the object links match the index links.

Specified by:
resolve in class APoolInfo

reindex

public void reindex()
Reindex constant pool indices. This makes sure the index links match the object links.

Specified by:
reindex in class APoolInfo

toString

public java.lang.String toString()
Return a human-readable version of this constant pool object.

Specified by:
toString in class APoolInfo
Returns:
string

toStringVerbose

public java.lang.String toStringVerbose()
Return a human-readable version of this constant pool object.

Specified by:
toStringVerbose in class APoolInfo
Returns:
string

hashCode

public int hashCode()
Return a hash code.

Specified by:
hashCode in class APoolInfo
Returns:
hash code

equals

public boolean equals(java.lang.Object obj)
Compare this object and another one.

Specified by:
equals in class APoolInfo
Parameters:
obj - other object
Returns:
true if the same

execute

public <R,D> R execute(IPoolInfoVisitor<R,D> visitor,
                       D data)
Execute a visitor.

Specified by:
execute in class APoolInfo
Parameters:
visitor - visitor
data - visitor-specific parameter
Returns:
visitor-specific return value