org.datanucleus.identity

Class ByteId

java.lang.Object

org.datanucleus.identity.SingleFieldId<Byte>

org.datanucleus.identity.ByteId

All Implemented Interfaces:

Externalizable, Serializable, Comparable

public class ByteId
extends SingleFieldId<Byte>

This class is for identity with a single byte field.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.datanucleus.identity.SingleFieldId

hashCode, STRING_DELIMITER, targetClassName

Constructor Summary

Constructors

Constructor and Description
ByteId()
ByteId(Class pcClass, byte key)
ByteId(Class pcClass, Byte key)
ByteId(Class pcClass, String str)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Object o)
boolean	equals(Object obj) Check the class and class name and object type.
byte	getKey()
Byte	getKeyAsObject()
void	readExternal(ObjectInput in) Read this object.
String	toString() Return the String version of the key.
void	writeExternal(ObjectOutput out) Write this object.

Methods inherited from class org.datanucleus.identity.SingleFieldId

assertKeyNotNull, compare, getTargetClass, getTargetClassName, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteId

public ByteId(Class pcClass,
              byte key)

ByteId

public ByteId(Class pcClass,
              Byte key)

ByteId

public ByteId(Class pcClass,
              String str)

ByteId

public ByteId()

Method Detail

getKey

public byte getKey()

getKeyAsObject

public Byte getKeyAsObject()

Specified by:

getKeyAsObject in class SingleFieldId<Byte>

toString

public String toString()

Return the String version of the key.

Overrides:

toString in class Object

Returns:

the key.

equals

public boolean equals(Object obj)

Description copied from class: SingleFieldId

Check the class and class name and object type. If restored from serialization, class will be null so compare class name.

Overrides:

equals in class SingleFieldId<Byte>

Parameters:

obj - the other object

Returns:

true if the class or class name is the same

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<Byte>

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<Byte>

Parameters:

in - the input

Throws:

IOException

ClassNotFoundException