org.macroing.cel4j.java.binary.classfile.cpinfo

Class ConstantClassInfo

java.lang.Object

org.macroing.cel4j.java.binary.classfile.CPInfo

org.macroing.cel4j.java.binary.classfile.cpinfo.ConstantClassInfo

All Implemented Interfaces:

Node

public final class ConstantClassInfo
extends CPInfo

A ConstantClassInfo denotes a CONSTANT_Class_info structure in the constant_pool of a ClassFile structure.

The CONSTANT_Class_info structure was added to Java in version 1.0.2.

This class is not thread-safe.

Since:

1.0.0

Author:

Jörgen Lundgren

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME The name of the CONSTANT_Class_info structure.
static int	TAG The tag for CONSTANT_Class.

Method Summary

Modifier and Type	Method and Description
ConstantClassInfo	copy() Returns a copy of this ConstantClassInfo instance.
boolean	equals(java.lang.Object object) Returns true if, and only if, object is an instance of ConstantClassInfo, and that ConstantClassInfo instance is equal to this ConstantClassInfo instance, false otherwise.
static java.util.List<ConstantClassInfo>	filter(Node node) Returns a List with all ConstantClassInfos.
int	getNameIndex() Returns the name_index of this ConstantClassInfo instance.
int	hashCode() Returns a hash code for this ConstantClassInfo instance.
static ConstantClassInfo	newInstance(int nameIndex) Returns a new ConstantClassInfo.
void	setNameIndex(int nameIndex) Sets a new name_index for this ConstantClassInfo instance.
java.lang.String	toString() Returns a String representation of this ConstantClassInfo instance.
void	write(java.io.DataOutput dataOutput) Writes this ConstantClassInfo to dataOutput.
void	write(Document document) Writes this ConstantClassInfo to document.

Methods inherited from class org.macroing.cel4j.java.binary.classfile.CPInfo

getConstantPoolEntryCount, getName, getTag

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.macroing.cel4j.java.binary.node.Node

accept, accept

Field Detail

NAME

public static final java.lang.String NAME

The name of the CONSTANT_Class_info structure.

See Also:

Constant Field Values

TAG

public static final int TAG

The tag for CONSTANT_Class.

See Also:

Constant Field Values

Method Detail

copy

public ConstantClassInfo copy()

Returns a copy of this ConstantClassInfo instance.

Specified by:

copy in class CPInfo

Returns:

a copy of this ConstantClassInfo instance

toString

public java.lang.String toString()

Returns a String representation of this ConstantClassInfo instance.

Overrides:

toString in class java.lang.Object

Returns:

a String representation of this ConstantClassInfo instance

equals

public boolean equals(java.lang.Object object)

Returns true if, and only if, object is an instance of ConstantClassInfo, and that ConstantClassInfo instance is equal to this ConstantClassInfo instance, false otherwise.

Overrides:

equals in class java.lang.Object

Parameters:

object - an Object to compare to this ConstantClassInfo instance for equality

Returns:

true if, and only if, object is an instance of ConstantClassInfo, and that ConstantClassInfo instance is equal to this ConstantClassInfo instance, false otherwise

getNameIndex

public int getNameIndex()

Returns the name_index of this ConstantClassInfo instance.

Returns:

the name_index of this ConstantClassInfo instance

hashCode

public int hashCode()

Returns a hash code for this ConstantClassInfo instance.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code for this ConstantClassInfo instance

setNameIndex

public void setNameIndex(int nameIndex)

Sets a new name_index for this ConstantClassInfo instance.

If nameIndex is less than or equal to 0, an IllegalArgumentException will be thrown.

Parameters:

nameIndex - the new name_index for this ConstantClassInfo instance

Throws:

java.lang.IllegalArgumentException - thrown if, and only if, nameIndex is less than or equal to 0

write

public void write(java.io.DataOutput dataOutput)

Writes this ConstantClassInfo to dataOutput.

If dataOutput is an OutputStream (or any other type of stream), this method will not close it.

If dataOutput is null, a NullPointerException will be thrown.

If an I/O-error occurs, an UncheckedIOException will be thrown.

Specified by:

write in class CPInfo

Parameters:

dataOutput - the DataOutput to write to

Throws:

java.lang.NullPointerException - thrown if, and only if, dataOutput is null

java.io.UncheckedIOException - thrown if, and only if, an I/O-error occurs

write

public void write(Document document)

Writes this ConstantClassInfo to document.

If document is null, a NullPointerException may be thrown. But no guarantees can be made.

Specified by:

write in class CPInfo

Parameters:

document - the Document to write to

Throws:

java.lang.NullPointerException - thrown if, and only if, document is null

newInstance

public static ConstantClassInfo newInstance(int nameIndex)

Returns a new ConstantClassInfo.

If nameIndex is less than or equal to 0, an IllegalArgumentException will be thrown.

Parameters:

nameIndex - the name_index of the new ConstantClassInfo instance

Returns:

a new ConstantClassInfo

Throws:

java.lang.IllegalArgumentException - thrown if, and only if, nameIndex is less than or equal to 0

filter

public static java.util.List<ConstantClassInfo> filter(Node node)

Returns a List with all ConstantClassInfos.

All ConstantClassInfos are found by traversing node using a simple NodeHierarchicalVisitor implementation.

If node is null, a NullPointerException will be thrown.

Parameters:

node - the Node to start traversal from

Returns:

a List with all ConstantClassInfos

Throws:

java.lang.NullPointerException - thrown if, and only if, node is null