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javax.jdo.identity

Class LongIdentity

Implemented Interfaces:
Externalizable
public class LongIdentity
extends SingleFieldIdentity
This class is for identity with a single long field.
Version:
2.0

Field Summary

Fields inherited from class javax.jdo.identity.SingleFieldIdentity

hashCode, keyAsObject, msg

Constructor Summary

LongIdentity()
Constructor only for Externalizable.
LongIdentity(Class pcClass, Long key)
Constructor with class and key.
LongIdentity(Class pcClass, String str)
Constructor with class and key.
LongIdentity(Class pcClass, long key)
Constructor with class and key.

Method Summary

protected Object
createKeyAsObject()
Create the key as an Object.
boolean
equals(Object obj)
Determine if the other object represents the same object id.
long
getKey()
Return the key.
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 javax.jdo.identity.SingleFieldIdentity

assertKeyNotNull, createKeyAsObject, equals, getKeyAsObject, getTargetClass, getTargetClassName, hashClassName, hashCode, readExternal, setKeyAsObject, writeExternal

Constructor Details

LongIdentity

public LongIdentity()
Constructor only for Externalizable.

LongIdentity

public LongIdentity(Class pcClass,
                    Long key)
Constructor with class and key.
Parameters:
pcClass - the class
key - the key

LongIdentity

public LongIdentity(Class pcClass,
                    String str)
Constructor with class and key.
Parameters:
pcClass - the class
str - the key

LongIdentity

public LongIdentity(Class pcClass,
                    long key)
Constructor with class and key.
Parameters:
pcClass - the class
key - the key

Method Details

createKeyAsObject

protected Object createKeyAsObject()
Create the key as an Object.
Overrides:
createKeyAsObject in interface SingleFieldIdentity
Returns:
the key as an Object
Since:
2.0

equals

public boolean equals(Object obj)
Determine if the other object represents the same object id.
Overrides:
equals in interface SingleFieldIdentity
Parameters:
obj - the other object
Returns:
true if both objects represent the same object id

getKey

public long getKey()
Return the key.
Returns:
the key

readExternal

public void readExternal(ObjectInput in)
            throws IOException,
                   ClassNotFoundException
Read this object. Read the superclass first.
Overrides:
readExternal in interface SingleFieldIdentity
Parameters:
in - the input

toString

public String toString()
Return the String form of the key.
Returns:
the String form of the key

writeExternal

public void writeExternal(ObjectOutput out)
            throws IOException
Write this object. Write the superclass first.
Overrides:
writeExternal in interface SingleFieldIdentity
Parameters:
out - the output

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