01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package com.db4o.test.nativequery.analysis;
22:
23: import com.db4o.nativequery.expr.*;
24: import com.db4o.nativequery.expr.cmp.*;
25: import com.db4o.nativequery.expr.cmp.operand.*;
26:
27: import db4ounit.*;
28:
29: public final class NQOptimizationAssertUtil {
30:
31: public static void assertComparison(Expression expr,
32: String[] fieldNames, Object value, ComparisonOperator op,
33: boolean negated) {
34: if (negated) {
35: NotExpression notExpr = (NotExpression) expr;
36: expr = notExpr.expr();
37: }
38: ComparisonExpression cmpExpr = (ComparisonExpression) expr;
39: Assert.areEqual(op, cmpExpr.op());
40: ComparisonOperand curop = cmpExpr.left();
41: for (int foundFieldIdx = fieldNames.length - 1; foundFieldIdx >= 0; foundFieldIdx--) {
42: FieldValue fieldValue = (FieldValue) curop;
43: Assert.areEqual(fieldNames[foundFieldIdx], fieldValue
44: .fieldName());
45: curop = fieldValue.parent();
46: }
47: Assert.areEqual(CandidateFieldRoot.INSTANCE, curop);
48: ComparisonOperand right = cmpExpr.right();
49: if (right instanceof ConstValue) {
50: Assert.areEqual(value, ((ConstValue) right).value());
51: return;
52: }
53: Assert.areEqual(value, right);
54: }
55:
56: private NQOptimizationAssertUtil() {
57: }
58:
59: }
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