/*
* This software is subject to the terms of the Eclipse Public License v1.0
* Agreement, available at the following URL:
* http://www.eclipse.org/legal/epl-v10.html.
* You must accept the terms of that agreement to use this software.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package mondrian.olap.fun;
import mondrian.calc.*;
import mondrian.calc.impl.AbstractListCalc;
import mondrian.mdx.ResolvedFunCall;
import mondrian.olap.Evaluator;
import mondrian.olap.FunDef;
/**
* Definition of the <code>Hierarchize</code> MDX function.
*
* @author jhyde
* @since Mar 23, 2006
*/
class HierarchizeFunDef extends FunDefBase {
static final String[] prePost = {"PRE", "POST"};
static final ReflectiveMultiResolver Resolver =
new ReflectiveMultiResolver(
"Hierarchize",
"Hierarchize(<Set>[, POST])",
"Orders the members of a set in a hierarchy.",
new String[] {"fxx", "fxxy"},
HierarchizeFunDef.class,
prePost);
public HierarchizeFunDef(FunDef dummyFunDef) {
super(dummyFunDef);
}
public Calc compileCall(ResolvedFunCall call, ExpCompiler compiler) {
final ListCalc listCalc =
compiler.compileList(call.getArg(0), true);
String order = getLiteralArg(call, 1, "PRE", prePost);
final boolean post = order.equals("POST");
return new AbstractListCalc(call, new Calc[] {listCalc}) {
public TupleList evaluateList(Evaluator evaluator) {
TupleList list = listCalc.evaluateList(evaluator);
return hierarchizeTupleList(list, post);
}
};
}
}
// End HierarchizeFunDef.java