/*
***************************************************************************************
* 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.epl.table.strategy;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.table.ExprTableAccessEvalStrategy;
import com.espertech.esper.epl.table.mgmt.TableMetadataColumn;
import com.espertech.esper.event.ObjectArrayBackedEventBean;
import java.util.Collection;
import java.util.Map;
public abstract class ExprTableEvalStrategyGroupByTopLevelBase extends ExprTableEvalStrategyGroupByBase implements ExprTableAccessEvalStrategy {
private final Map<String, TableMetadataColumn> items;
protected ExprTableEvalStrategyGroupByTopLevelBase(TableAndLockProviderGrouped provider, Map<String, TableMetadataColumn> items) {
super(provider);
this.items = items;
}
protected Object evaluateInternal(Object groupKey, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
ObjectArrayBackedEventBean row = lockTableReadAndGet(groupKey, context);
if (row == null) {
return null;
}
return ExprTableEvalStrategyUtil.evalMap(row, ExprTableEvalStrategyUtil.getRow(row), items, eventsPerStream, isNewData, context);
}
protected Object[] evaluateTypableSingleInternal(Object groupKey, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
ObjectArrayBackedEventBean row = lockTableReadAndGet(groupKey, context);
if (row == null) {
return null;
}
return ExprTableEvalStrategyUtil.evalTypable(row, ExprTableEvalStrategyUtil.getRow(row), items, eventsPerStream, isNewData, context);
}
public Collection<EventBean> evaluateGetROCollectionEvents(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
return null;
}
public EventBean evaluateGetEventBean(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
return null;
}
public Collection evaluateGetROCollectionScalar(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
return null;
}
}