/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.core.service;
public class ExpressionResultCacheServiceHolder {
private final int declareExprCacheSize;
private ExpressionResultCacheForPropUnwrap propUnwrap;
private ExpressionResultCacheForDeclaredExprLastValue declaredExprLastValue;
private ExpressionResultCacheForDeclaredExprLastColl declaredExprLastColl;
private ExpressionResultCacheForEnumerationMethod enumerationMethod;
public ExpressionResultCacheServiceHolder(int declareExprCacheSize) {
this.declareExprCacheSize = declareExprCacheSize;
}
public ExpressionResultCacheForPropUnwrap getAllocateUnwrapProp() {
if (propUnwrap == null) {
propUnwrap = new ExpressionResultCacheForPropUnwrapImpl();
}
return propUnwrap;
}
public ExpressionResultCacheForDeclaredExprLastValue getAllocateDeclaredExprLastValue() {
if (declaredExprLastValue == null) {
if (declareExprCacheSize < 1) {
declaredExprLastValue = new ExpressionResultCacheForDeclaredExprLastValueNone();
} else if (declareExprCacheSize < 2) {
declaredExprLastValue = new ExpressionResultCacheForDeclaredExprLastValueSingle();
} else {
declaredExprLastValue = new ExpressionResultCacheForDeclaredExprLastValueMulti(declareExprCacheSize);
}
}
return declaredExprLastValue;
}
public ExpressionResultCacheForDeclaredExprLastColl getAllocateDeclaredExprLastColl() {
if (declaredExprLastColl == null) {
declaredExprLastColl = new ExpressionResultCacheForDeclaredExprLastCollImpl();
}
return declaredExprLastColl;
}
public ExpressionResultCacheForEnumerationMethod getAllocateEnumerationMethod() {
if (enumerationMethod == null) {
enumerationMethod = new ExpressionResultCacheForEnumerationMethodImpl();
}
return enumerationMethod;
}
}