Package org.datanucleus.identity

Class LongId

java.lang.Object

org.datanucleus.identity.SingleFieldId<Long>

org.datanucleus.identity.LongId

All Implemented Interfaces:

Externalizable, Serializable, Comparable

public class LongId
extends SingleFieldId<Long>

This class is for identity with a single long field.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.datanucleus.identity.SingleFieldId

hashCode, STRING_DELIMITER, targetClassName

Constructor Summary

Constructors

Constructor	Description
LongId()
LongId(Class pcClass, long key)
LongId(Class pcClass, Long key)
LongId(Class pcClass, String str)

Method Summary

Modifier and Type	Method	Description
int	compareTo(Object o)
long	getKey()
Long	getKeyAsObject()
protected boolean	keyEquals(SingleFieldId obj)
void	readExternal(ObjectInput in)	Read this object.
String	toString()	Return the String form of the key.
void	writeExternal(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

Constructor Detail

LongId

public LongId(Class pcClass,
              long key)

LongId

public LongId(Class pcClass,
              Long key)

LongId

public LongId(Class pcClass,
              String str)

LongId

public LongId()

Method Detail

getKey

public long getKey()

getKeyAsObject

public Long getKeyAsObject()

Specified by:

getKeyAsObject in class SingleFieldId<Long>

toString

public String toString()

Return the String form of the key.

Overrides:

toString in class Object

Returns:

the String form of the key

keyEquals

protected boolean keyEquals(SingleFieldId obj)

Specified by:

keyEquals in class SingleFieldId<Long>

compareTo

public int compareTo(Object o)

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Write this object. Write the superclass first.

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class SingleFieldId<Long>

Parameters:

out - the output

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Read this object. Read the superclass first.

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class SingleFieldId<Long>

Parameters:

in - the input

Throws:

IOException

ClassNotFoundException