Package de.iip_ecosphere.platform.connectors

Class DefaultCachingStrategy

java.lang.Object

de.iip_ecosphere.platform.connectors.DefaultCachingStrategy

All Implemented Interfaces:

CachingStrategy

public class DefaultCachingStrategy
extends java.lang.Object
implements CachingStrategy

A default caching strategy.

Author:

Holger Eichelberger, SSE

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	DefaultCachingStrategy.ConsideredSame	A functor indicating that two objects are considered the same.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Map<java.lang.String,java.lang.Object>	cache
private ConnectorParameter.CacheMode	mode
private java.lang.Object	singleCache

Constructor Summary

Constructors

Constructor	Description
DefaultCachingStrategy()

Method Summary

Modifier and Type	Method	Description
boolean	checkCache(java.lang.Object data)	Checks the cache if configured.
boolean	checkCache(java.lang.String key, java.lang.Object data)	Checks a multi-cache if configured.
private boolean	checkCache(java.lang.String key, java.lang.Object data, DefaultCachingStrategy.ConsideredSame same)	Checks the cache.
void	clearCache()	Clears the cache.
void	setCacheMode(ConnectorParameter.CacheMode mode)	Defines the actual cache mode.

Methods inherited from class java.lang.Object

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

Field Detail

singleCache

private java.lang.Object singleCache

cache

private java.util.Map<java.lang.String,java.lang.Object> cache

mode

private ConnectorParameter.CacheMode mode

Constructor Detail

DefaultCachingStrategy

public DefaultCachingStrategy()

Method Detail

setCacheMode

public void setCacheMode(ConnectorParameter.CacheMode mode)

Description copied from interface: CachingStrategy

Defines the actual cache mode.

Specified by:

setCacheMode in interface CachingStrategy

Parameters:

mode - the actual cache mode

checkCache

public boolean checkCache(java.lang.Object data)

Description copied from interface: CachingStrategy

Checks the cache if configured.

Specified by:

checkCache in interface CachingStrategy

Parameters:

data - the data to send

Returns:

true for sending data, false for not sending data

checkCache

public boolean checkCache(java.lang.String key,
                          java.lang.Object data)

Description copied from interface: CachingStrategy

Checks a multi-cache if configured.

Specified by:

checkCache in interface CachingStrategy

Parameters:

key - a key into the cache

data - the data to send

Returns:

true for sending data, false for not sending data

checkCache

private boolean checkCache(java.lang.String key,
                           java.lang.Object data,
                           DefaultCachingStrategy.ConsideredSame same)

Checks the cache.

Parameters:

key - the AAS id to consider caches for different AAS

data - the data to send

same - a functor checking the data

Returns:

true for sending data, false for not sending data

clearCache

public void clearCache()

Description copied from interface: CachingStrategy

Clears the cache.

Specified by:

clearCache in interface CachingStrategy