org.gjt.jclasslib.structures.constants
Class ConstantDoubleInfo

java.lang.Object
  |
  +--org.gjt.jclasslib.structures.AbstractStructure
        |
        +--org.gjt.jclasslib.structures.CPInfo
              |
              +--org.gjt.jclasslib.structures.constants.ConstantLargeNumeric
                    |
                    +--org.gjt.jclasslib.structures.constants.ConstantDoubleInfo

public class ConstantDoubleInfo

extends ConstantLargeNumeric

Describes a CONSTANT_Double_info constant pool data structure.

Version:

$Revision: 1.4 $ $Date: 2003/08/20 17:14:37 $

Author:

Ingo Kegel

Field Summary

Fields inherited from class org.gjt.jclasslib.structures.constants.ConstantLargeNumeric

highBytes, lowBytes, SIZE

Fields inherited from class org.gjt.jclasslib.structures.CPInfo

CONSTANT_CLASS, CONSTANT_CLASS_VERBOSE, CONSTANT_DOUBLE, CONSTANT_DOUBLE_VERBOSE, CONSTANT_FIELDREF, CONSTANT_FIELDREF_VERBOSE, CONSTANT_FLOAT, CONSTANT_FLOAT_VERBOSE, CONSTANT_INTEGER, CONSTANT_INTEGER_VERBOSE, CONSTANT_INTERFACE_METHODREF, CONSTANT_INTERFACE_METHODREF_VERBOSE, CONSTANT_LONG, CONSTANT_LONG_VERBOSE, CONSTANT_METHODREF, CONSTANT_METHODREF_VERBOSE, CONSTANT_NAME_AND_TYPE, CONSTANT_NAME_AND_TYPE_VERBOSE, CONSTANT_STRING, CONSTANT_STRING_VERBOSE, CONSTANT_UTF8, CONSTANT_UTF8_VERBOSE

Fields inherited from class org.gjt.jclasslib.structures.AbstractStructure

classFile, debug, SYSTEM_PROPERTY_DEBUG

Constructor Summary

ConstantDoubleInfo()

Method Summary

protected void	debug(String message) Utility method for derived structures.
double	getDouble() Get the double value of this constant pool entry.
byte	getTag() Get the value of the tag field of the cp_info structure.
String	getTagVerbose() Get the verbose description of the tag field of the cp_info structure.
String	getVerbose() Get the verbose description of the content of the constant pool entry.
void	read(DataInput in) Read this structure from the given DataInput.
void	setDouble(double number) Set the double value of this constant pool entry.
void	write(DataOutput out) Write this structure to the given DataOutput.

Methods inherited from class org.gjt.jclasslib.structures.constants.ConstantLargeNumeric

equals, getFormattedHighBytes, getFormattedLowBytes, getHighBytes, getLowBytes, hashCode, setHighBytes, setLowBytes

Methods inherited from class org.gjt.jclasslib.structures.CPInfo

create, skip

Methods inherited from class org.gjt.jclasslib.structures.AbstractStructure

getClassFile, getDebug, getLength, printAccessFlags, printAccessFlagsVerbose, printBytes, setClassFile, setDebug

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConstantDoubleInfo

public ConstantDoubleInfo()

Method Detail

getTag

public byte getTag()

Description copied from class: CPInfo

Get the value of the tag field of the cp_info structure.

Specified by:

getTag in class CPInfo

Returns:

the tag

getTagVerbose

public String getTagVerbose()

Description copied from class: CPInfo

Get the verbose description of the tag field of the cp_info structure.

Specified by:

getTagVerbose in class CPInfo

Returns:

the verbose description

getVerbose

public String getVerbose()
                  throws InvalidByteCodeException

Description copied from class: CPInfo

Get the verbose description of the content of the constant pool entry.

Overrides:

getVerbose in class CPInfo

Returns:

the verbose description

Throws:

InvalidByteCodeException - if the byte code is invalid

getDouble

public double getDouble()

Get the double value of this constant pool entry.

Returns:

the value

setDouble

public void setDouble(double number)

Set the double value of this constant pool entry.

Parameters:

number - the value

read

public void read(DataInput in)
          throws InvalidByteCodeException,
                 IOException

Description copied from class: AbstractStructure

Read this structure from the given DataInput.

Excpects DataInput to be in JVM class file format and just before a structure of this kind. No look ahead parsing since the class file format is deterministic.

Overrides:

read in class ConstantLargeNumeric

Parameters:

in - the DataInput from which to read

Throws:

IOException - if an exception occurs with the DataInput

InvalidByteCodeException - if the byte code is invalid

write

public void write(DataOutput out)
           throws InvalidByteCodeException,
                  IOException

Description copied from class: AbstractStructure

Write this structure to the given DataOutput.

The written bytes are in JVM class file format.

Overrides:

write in class ConstantLargeNumeric

Parameters:

out - the DataOutput to which to write

Throws:

InvalidByteCodeException - if the structure is internally inconsistent

IOException - if an exception occurs with the DataOutput

debug

protected void debug(String message)

Description copied from class: AbstractStructure

Utility method for derived structures. Dump a specific debug message.

Overrides:

debug in class AbstractStructure

Parameters:

message - the debug message