SetFunction.java

/**
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.clips.functions;

import org.drools.clips.Appendable;
import org.drools.clips.Function;
import org.drools.clips.FunctionHandlers;
import org.drools.clips.LispAtom;
import org.drools.clips.LispForm;
import org.drools.clips.SExpression;

public class SetFunction
    implements
    Function {
    private static final String name = "set";

    public String getName() {
        return name;
    }

    public void dump(LispForm lispForm,
                     Appendable appendable) {
        SExpression[] sExpressions = lispForm.getSExpressions();

        String name = ((LispAtom) sExpressions[1]).getValue();

        String field = ((LispAtom) sExpressions[2]).getValue().trim();
        field = field.substring( 1, field.length() -1  );                

        appendable.append( name );
        appendable.append( "." );
        appendable.append( field );
        appendable.append( " = " );

        FunctionHandlers.dump( sExpressions[3],
                               appendable );
    }
}