/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* 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.join.plan;
import java.io.Serializable;
import java.io.StringWriter;
import java.util.List;
public abstract class QueryGraphValueEntryRange implements QueryGraphValueEntry, Serializable {
private static final long serialVersionUID = 8991572541148988925L;
private final QueryGraphRangeEnum type;
protected QueryGraphValueEntryRange(QueryGraphRangeEnum type) {
this.type = type;
}
public QueryGraphRangeEnum getType() {
return type;
}
public abstract String toQueryPlan();
public static String toQueryPlan(List<QueryGraphValueEntryRange> rangeKeyPairs) {
StringWriter writer = new StringWriter();
String delimiter = "";
for (QueryGraphValueEntryRange item : rangeKeyPairs) {
writer.write(delimiter);
writer.write(item.toQueryPlan());
delimiter = ", ";
}
return writer.toString();
}
}