Package org.datanucleus.identity

Class LongId

java.lang.Object

org.datanucleus.identity.SingleFieldId<java.lang.Long,LongId>

org.datanucleus.identity.LongId

All Implemented Interfaces:

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

public class LongId
extends SingleFieldId<java.lang.Long,LongId>

This class is for identity with a single long field.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private long	key

Fields inherited from class org.datanucleus.identity.SingleFieldId

hashCode, STRING_DELIMITER, targetClassName

Constructor Summary

Constructors

Constructor	Description
LongId()
LongId(java.lang.Class<?> pcClass, long key)
LongId(java.lang.Class<?> pcClass, java.lang.Long key)
LongId(java.lang.Class<?> pcClass, java.lang.String str)

Method Summary

Modifier and Type	Method	Description
int	compareTo(LongId other)
long	getKey()
java.lang.Long	getKeyAsObject()	Accessor for the key
protected boolean	keyEquals(LongId obj)
void	readExternal(java.io.ObjectInput in)	Read this object.
java.lang.String	toString()	Return the String form 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 long key

Constructor Detail

LongId

public LongId(java.lang.Class<?> pcClass,
              long key)

LongId

public LongId(java.lang.Class<?> pcClass,
              java.lang.Long key)

LongId

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

LongId

public LongId()

Method Detail

getKey

public long getKey()

getKeyAsObject

public java.lang.Long getKeyAsObject()

Description copied from class: SingleFieldId

Accessor for the key

Specified by:

getKeyAsObject in class SingleFieldId<java.lang.Long,LongId>

Returns:

The key

toString

public java.lang.String toString()

Return the String form of the key.

Overrides:

toString in class java.lang.Object

Returns:

the String form of the key

keyEquals

protected boolean keyEquals(LongId obj)

Specified by:

keyEquals in class SingleFieldId<java.lang.Long,LongId>

compareTo

public int compareTo(LongId 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.Long,LongId>

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.Long,LongId>

Parameters:

in - the input

Throws:

java.io.IOException

java.lang.ClassNotFoundException