com.mmnaseri.utils.spring.data.domain.impl

Class AbstractRandomKeyGenerator<S extends Serializable>

java.lang.Object

com.mmnaseri.utils.spring.data.domain.impl.AbstractRandomKeyGenerator<S>

All Implemented Interfaces:

KeyGenerator<S>

Direct Known Subclasses:

ConfigurableSequentialIntegerKeyGenerator, ConfigurableSequentialLongKeyGenerator, RandomIntegerKeyGenerator, RandomLongKeyGenerator

public abstract class AbstractRandomKeyGenerator<S extends Serializable>
extends Object
implements KeyGenerator<S>

This implementation will wrap the key generation process in a procedure that prevents duplicate keys from being generated. Since the generate method on this class is synchronized it protects multi-threading and race issues from messing up the key generation, so the extending classes can easily generate keys without having to worry about such issues.

Since:

1.0 (10/8/15)

Author:

Milad Naseri (mmnaseri@programmer.net)

Constructor Summary

Constructors

Constructor and Description
AbstractRandomKeyGenerator()

Method Summary

Modifier and Type	Method and Description
S	generate() Generates a new key and returns the value
protected abstract S	getNext()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractRandomKeyGenerator

public AbstractRandomKeyGenerator()

Method Detail

generate

public final S generate()

Description copied from interface: KeyGenerator

Generates a new key and returns the value

Specified by:

generate in interface KeyGenerator<S extends Serializable>

Returns:

the generated key

getNext

protected abstract S getNext()

Returns:

the next key in the sequence. This needs not be reproducible.