/**
* Copyright (C) 2010 dennis zhuang (killme2008@gmail.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
**/
package com.googlecode.aviator.runtime.function.seq;
import java.util.Map;
import com.googlecode.aviator.lexer.token.OperatorType;
import com.googlecode.aviator.runtime.type.AviatorFunction;
import com.googlecode.aviator.runtime.type.AviatorJavaType;
import com.googlecode.aviator.runtime.type.AviatorObject;
/**
* Function to make predicate for filter function
*
* @author dennis
*
*/
public class SeqMakePredicateFunFunction implements AviatorFunction {
private final String name;
private final OperatorType opType;
private final AviatorObject value;
public SeqMakePredicateFunFunction(String name, OperatorType opType) {
this(name, opType, null);
}
public SeqMakePredicateFunFunction(String name, OperatorType opType, AviatorObject value) {
super();
this.name = name;
this.opType = opType;
this.value = value;
}
public AviatorObject call(Map<String, Object> env, AviatorObject... args) {
// generate a temp function object as predicate
AviatorFunction fun = new SeqPredicateFunction(name, opType, value == null ? args[0] : value);
final String funName = name + "_tmp_" + System.nanoTime();
env.put(funName, fun);
return new AviatorJavaType(funName);
}
public String getName() {
return name;
}
}