/*
***************************************************************************************
* 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.supportunit.epl;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.agg.aggregator.AggregationMethod;
import com.espertech.esper.epl.agg.service.AggregationMethodFactory;
import com.espertech.esper.epl.expression.baseagg.ExprAggregateNode;
import com.espertech.esper.epl.expression.baseagg.ExprAggregateNodeBase;
import com.espertech.esper.epl.expression.core.ExprValidationContext;
import com.espertech.esper.epl.expression.core.ExprValidationException;
public class SupportAggregateExprNode extends ExprAggregateNodeBase {
private static int validateCount;
private Class type;
private Object value;
private int validateCountSnapshot;
public static void setValidateCount(int validateCount) {
SupportAggregateExprNode.validateCount = validateCount;
}
public SupportAggregateExprNode(Class type) {
super(false);
this.type = type;
this.value = null;
}
public SupportAggregateExprNode(Object value) {
super(false);
this.type = value.getClass();
this.value = value;
}
public SupportAggregateExprNode(Object value, Class type) {
super(false);
this.value = value;
this.type = type;
}
protected AggregationMethodFactory validateAggregationChild(ExprValidationContext validationContext) throws ExprValidationException {
// Keep a count for if and when this was validated
validateCount++;
validateCountSnapshot = validateCount;
return null;
}
public Class getType() {
return type;
}
public int getValidateCountSnapshot() {
return validateCountSnapshot;
}
public AggregationMethod getAggregationFunction() {
return null;
}
public String getAggregationFunctionName() {
return "support";
}
public boolean equalsNodeAggregateMethodOnly(ExprAggregateNode node) {
throw new UnsupportedOperationException("not implemented");
}
public void evaluateEnter(EventBean[] eventsPerStream) {
}
public void evaluateLeave(EventBean[] eventsPerStream) {
}
public void setValue(Object value) {
this.value = value;
}
protected boolean isFilterExpressionAsLastParameter() {
return true;
}
}