uk.ac.ic.doc.automed.qproc.cache
Class CachePolicy3

java.lang.Object
  uk.ac.ic.doc.automed.qproc.cache.DefaultCachePolicy
      uk.ac.ic.doc.automed.qproc.cache.CachePolicy3

All Implemented Interfaces:

CachePolicy

public class CachePolicy3
extends DefaultCachePolicy

CachePolicy3.java Only use the case, do not cache at GUI

Author:

Duc M Le dmle@doc.ic.ac.uk

Field Summary

static int

DEF_WRAPPER_ACTION

Fields inherited from interface uk.ac.ic.doc.automed.qproc.cache.CachePolicy

AD_CHECK_CACHE_FIRST, AD_CHECK_CACHE_LAST, AD_CHECK_CONTAINMENT, CACHE_RESULT, CX_GUI, CX_QUERY_EVALUATOR, CX_QUERY_OPTIMISER, CX_QUERY_REFORMULATOR, CX_WRAPPER, DO_NOT_USE_CACHE, EV_AFTER_EXECUTION, EV_BEFORE_EXECUTION, EV_FAIL_TO_COMMUNICATE, EV_REMOTE_PEER_NOT_AVAILABLE, EV_SOURCE_SCHEMA_NOT_AVAILABLE, PREFER_CACHE_RESULT, PREFER_LIVE_DATA, USE_CACHE_ONLY, USE_LIVE_DATA_ONLY

Constructor Summary

CachePolicy3()
Creates a new instance of CachePolicy

Method Summary

int	evaluateAction(java.lang.String context, int eventType, QueryProcessorConfiguration qpc) Evalute a set of of conditions to produce the appropriate cache actions
java.lang.String	getName() Return a default name of a cache policy

Methods inherited from class java.lang.Object

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

Field Detail

DEF_WRAPPER_ACTION

public static final int DEF_WRAPPER_ACTION

See Also:

Constant Field Values

Constructor Detail

CachePolicy3

public CachePolicy3()

Creates a new instance of CachePolicy

Method Detail

evaluateAction

public int evaluateAction(java.lang.String context,
                          int eventType,
                          QueryProcessorConfiguration qpc)

Evalute a set of of conditions to produce the appropriate cache actions

Specified by:

evaluateAction in interface CachePolicy

Overrides:

evaluateAction in class DefaultCachePolicy

Parameters:

context - The context at which the a cache action is to be produced

eventType - The event (in the specified context) which desires a cache action

qpc - the QueryProcessorConfiguration class which provides user-specified parameters for the evaluation

Returns:

int the action code (see the public constants of this class)

getName

public java.lang.String getName()

Description copied from interface: CachePolicy

Return a default name of a cache policy

Specified by:

getName in interface CachePolicy

Overrides:

getName in class DefaultCachePolicy