Package org.datanucleus.identity

Class StringId

java.lang.Object

org.datanucleus.identity.SingleFieldId<java.lang.String,StringId>

org.datanucleus.identity.StringId

All Implemented Interfaces:

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

public class StringId
extends SingleFieldId<java.lang.String,StringId>

This class is for identity with a single String field.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	key

Fields inherited from class org.datanucleus.identity.SingleFieldId

hashCode, STRING_DELIMITER, targetClassName

Constructor Summary

Constructors

Constructor	Description
StringId()
StringId(java.lang.Class<?> pcClass, java.lang.String key)

Method Summary

Modifier and Type	Method	Description
int	compareTo(StringId other)
java.lang.String	getKey()
java.lang.String	getKeyAsObject()	Accessor for the key
protected boolean	keyEquals(StringId 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 java.lang.String key

Constructor Detail

StringId

public StringId(java.lang.Class<?> pcClass,
                java.lang.String key)

StringId

public StringId()

Method Detail

getKey

public java.lang.String getKey()

getKeyAsObject

public java.lang.String getKeyAsObject()

Description copied from class: SingleFieldId

Accessor for the key

Specified by:

getKeyAsObject in class SingleFieldId<java.lang.String,StringId>

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(StringId obj)

Specified by:

keyEquals in class SingleFieldId<java.lang.String,StringId>

compareTo

public int compareTo(StringId 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.String,StringId>

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.String,StringId>

Parameters:

in - the input

Throws:

java.io.IOException

java.lang.ClassNotFoundException