funcvareval.java

java 读写word excel ppt

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/*
 * Created on May 8, 2005
 *
 */
package org.apache.poi.hssf.record.formula.eval;

import org.apache.poi.hssf.record.formula.AbstractFunctionPtg;
import org.apache.poi.hssf.record.formula.Ptg;
import org.apache.poi.hssf.record.formula.functions.Function;

/**
 * @author Amol S. Deshmukh < amolweb at ya hoo dot com >
 *  
 */
public class FuncVarEval extends FunctionEval {

    private AbstractFunctionPtg delegate;

    public FuncVarEval(Ptg funcPtg) {
        delegate = (AbstractFunctionPtg) funcPtg;
    }

    public Eval evaluate(Eval[] operands, int srcRow, short srcCol) {
        Eval retval = null;
        Function f = getFunction();
        if (f != null)
            retval = f.evaluate(operands, srcRow, srcCol);
        else
            retval = ErrorEval.FUNCTION_NOT_IMPLEMENTED;
        return retval;
    }

    public int getNumberOfOperands() {
        return delegate.getNumberOfOperands();
    }

    public int getType() {
        return delegate.getType();
    }

    public short getFunctionIndex() {
        return delegate.getFunctionIndex();
    }
}