Package org.datanucleus.identity

Class ByteId

java.lang.Object

org.datanucleus.identity.SingleFieldId<java.lang.Byte,ByteId>

org.datanucleus.identity.ByteId

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Comparable<ByteId>

public class ByteId
extends SingleFieldId<java.lang.Byte,ByteId>

This class is for identity with a single byte field.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private byte	key

Fields inherited from class org.datanucleus.identity.SingleFieldId

hashCode, STRING_DELIMITER, targetClassName

Constructor Summary

Constructors

Constructor	Description
ByteId()
ByteId(java.lang.Class<?> pcClass, byte key)
ByteId(java.lang.Class<?> pcClass, java.lang.Byte key)
ByteId(java.lang.Class<?> pcClass, java.lang.String str)

Method Summary

Modifier and Type	Method	Description
int	compareTo(ByteId other)
byte	getKey()
java.lang.Byte	getKeyAsObject()	Accessor for the key
protected boolean	keyEquals(ByteId obj)
void	readExternal(java.io.ObjectInput in)	Read this object.
java.lang.String	toString()	Return the String version of the key.
void	writeExternal(java.io.ObjectOutput out)	Write this object.

Methods inherited from class org.datanucleus.identity.SingleFieldId

assertKeyNotNull, compare, equals, getTargetClassName, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

key

private byte key

Constructor Detail

ByteId

public ByteId(java.lang.Class<?> pcClass,
              byte key)

ByteId

public ByteId(java.lang.Class<?> pcClass,
              java.lang.Byte key)

ByteId

public ByteId(java.lang.Class<?> pcClass,
              java.lang.String str)

ByteId

public ByteId()

Method Detail

getKey

public byte getKey()

getKeyAsObject

public java.lang.Byte getKeyAsObject()

Description copied from class: SingleFieldId

Accessor for the key

Specified by:

getKeyAsObject in class SingleFieldId<java.lang.Byte,ByteId>

Returns:

The key

toString

public java.lang.String toString()

Return the String version of the key.

Overrides:

toString in class java.lang.Object

Returns:

the key.

keyEquals

protected boolean keyEquals(ByteId obj)

Specified by:

keyEquals in class SingleFieldId<java.lang.Byte,ByteId>

compareTo

public int compareTo(ByteId other)

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Write this object. Write the superclass first.

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class SingleFieldId<java.lang.Byte,ByteId>

Parameters:

out - the output

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Read this object. Read the superclass first.

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class SingleFieldId<java.lang.Byte,ByteId>

Parameters:

in - the input

Throws:

java.io.IOException

java.lang.ClassNotFoundException