01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: /*
18: * Created on May 8, 2005
19: *
20: */
21: package org.apache.poi.hssf.record.formula.eval;
22:
23: import org.apache.poi.hssf.record.formula.NotEqualPtg;
24: import org.apache.poi.hssf.record.formula.Ptg;
25:
26: /**
27: * @author Amol S. Deshmukh < amolweb at ya hoo dot com >
28: *
29: */
30: public class NotEqualEval extends RelationalOperationEval {
31:
32: private NotEqualPtg delegate;
33:
34: public NotEqualEval(Ptg ptg) {
35: this .delegate = (NotEqualPtg) ptg;
36: }
37:
38: public Eval evaluate(Eval[] operands, int srcRow, short srcCol) {
39: ValueEval retval = null;
40:
41: RelationalValues rvs = super .doEvaluate(operands, srcRow,
42: srcCol);
43: retval = rvs.ee;
44: int result = 0;
45: if (retval == null) {
46: result = doComparison(rvs.bs);
47: if (result == 0) {
48: result = doComparison(rvs.ss);
49: }
50: if (result == 0) {
51: result = doComparison(rvs.ds);
52: }
53:
54: retval = (result != 0) ? BoolEval.TRUE : BoolEval.FALSE;
55: }
56:
57: return retval;
58: }
59:
60: public int getNumberOfOperands() {
61: return delegate.getNumberOfOperands();
62: }
63:
64: public int getType() {
65: return delegate.getType();
66: }
67:
68: }
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