org.springframework.cache.interceptor

Class DefaultKeyGenerator

java.lang.Object

org.springframework.cache.interceptor.DefaultKeyGenerator

All Implemented Interfaces:

KeyGenerator

public class DefaultKeyGenerator
extends Object
implements KeyGenerator

Default key generator. Returns 0 if no parameters are provided, the parameter itself if only one is given or a hash code computed from all given parameters' hash code values. Uses the constant value 53 for any null parameters given.

Since:

3.1

Author:

Costin Leau, Chris Beams, Juergen Hoeller

Field Summary

Fields

Modifier and Type	Field and Description
static int	NO_PARAM_KEY
static int	NULL_PARAM_KEY

Constructor Summary

Constructors

Constructor and Description
DefaultKeyGenerator()

Method Summary

Methods

Modifier and Type	Method and Description
Object	generate(Object target, Method method, Object... params)

Methods inherited from class java.lang.Object

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

Field Detail

NO_PARAM_KEY

public static final int NO_PARAM_KEY

See Also:

Constant Field Values

NULL_PARAM_KEY

public static final int NULL_PARAM_KEY

See Also:

Constant Field Values

Constructor Detail

DefaultKeyGenerator

public DefaultKeyGenerator()

Method Detail

generate

public Object generate(Object target,
              Method method,
              Object... params)

Specified by:

generate in interface KeyGenerator