org.datanucleus.identity

Class StringId

java.lang.Object

org.datanucleus.identity.SingleFieldId<String>

org.datanucleus.identity.StringId

All Implemented Interfaces:

Externalizable, Serializable, Comparable

public class StringId
extends SingleFieldId<String>

This class is for identity with a single String 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
StringId()
StringId(Class pcClass, String key)

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.
String	getKey()
String	getKeyAsObject()
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, getTargetClassName, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

StringId

public StringId(Class pcClass,
                String key)

StringId

public StringId()

Method Detail

getKey

public String getKey()

getKeyAsObject

public String getKeyAsObject()

Specified by:

getKeyAsObject in class SingleFieldId<String>

toString

public String toString()

Return the String form of the key.

Overrides:

toString in class Object

Returns:

the String form of the key

equals

public boolean equals(Object obj)

Description copied from class: SingleFieldId

Check the class and class name and object type.

Overrides:

equals in class SingleFieldId<String>

Parameters:

obj - the other object

Returns:

true if the 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<String>

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<String>

Parameters:

in - the input

Throws:

IOException

ClassNotFoundException