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 9, 2005
19: *
20: */
21: package org.apache.poi.hssf.record.formula.functions;
22:
23: import org.apache.poi.hssf.record.formula.eval.AreaEval;
24: import org.apache.poi.hssf.record.formula.eval.BoolEval;
25: import org.apache.poi.hssf.record.formula.eval.ErrorEval;
26: import org.apache.poi.hssf.record.formula.eval.Eval;
27: import org.apache.poi.hssf.record.formula.eval.StringEval;
28: import org.apache.poi.hssf.record.formula.eval.ValueEval;
29:
30: public class And extends BooleanFunction {
31:
32: public Eval evaluate(Eval[] operands, int srcRow, short srcCol) {
33: ValueEval retval = null;
34: boolean b = true;
35: boolean atleastOneNonBlank = false;
36:
37: /*
38: * Note: do not abort the loop if b is false, since we could be
39: * dealing with errorevals later.
40: */
41: outer: for (int i = 0, iSize = operands.length; i < iSize; i++) {
42: if (operands[i] instanceof AreaEval) {
43: AreaEval ae = (AreaEval) operands[i];
44: ValueEval[] values = ae.getValues();
45: for (int j = 0, jSize = values.length; j < jSize; j++) {
46: ValueEval tempVe = singleOperandEvaluate(values[j],
47: srcRow, srcCol, true);
48: if (tempVe instanceof BoolEval) {
49: b = b && ((BoolEval) tempVe).getBooleanValue();
50: atleastOneNonBlank = true;
51: } else if (tempVe instanceof ErrorEval) {
52: retval = tempVe;
53: break outer;
54: }
55: }
56: } else {
57: ValueEval tempVe = singleOperandEvaluate(operands[i],
58: srcRow, srcCol, false);
59: if (tempVe instanceof BoolEval) {
60: b = b && ((BoolEval) tempVe).getBooleanValue();
61: atleastOneNonBlank = true;
62: } else if (tempVe instanceof StringEval) {
63: retval = ErrorEval.VALUE_INVALID;
64: } else if (tempVe instanceof ErrorEval) {
65: retval = tempVe;
66: break outer;
67: }
68: }
69: }
70:
71: if (!atleastOneNonBlank) {
72: retval = ErrorEval.VALUE_INVALID;
73: }
74:
75: if (retval == null) { // if no error
76: retval = b ? BoolEval.TRUE : BoolEval.FALSE;
77: }
78:
79: return retval;
80: }
81:
82: }
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