Security-55163.44.tar.gz

[apple/security.git] / libsecurity_filedb / lib / SelectionPredicate.cpp

diff --git a/libsecurity_filedb/lib/SelectionPredicate.cpp b/libsecurity_filedb/lib/SelectionPredicate.cpp
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+++ b/libsecurity_filedb/lib/SelectionPredicate.cpp
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+/*
+ * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
+ * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
+ * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
+ * specific language governing rights and limitations under the License.
+ */
+
+
+//
+// SelectionPredicate.cpp
+//
+
+#include "SelectionPredicate.h"
+
+SelectionPredicate::SelectionPredicate(const MetaRecord &inMetaRecord,
+                                                                          const CSSM_SELECTION_PREDICATE &inPredicate)
+:      mMetaAttribute(inMetaRecord.metaAttribute(inPredicate.Attribute.Info)),
+       mDbOperator(inPredicate.DbOperator)
+{
+       // Make sure that the caller specified the attribute values in the correct format.
+       if (inPredicate.Attribute.Info.AttributeFormat != mMetaAttribute.attributeFormat())
+               CssmError::throwMe(CSSMERR_DL_INCOMPATIBLE_FIELD_FORMAT);
+
+       // XXX See ISSUES
+       if (inPredicate.Attribute.NumberOfValues != 1)
+               CssmError::throwMe(CSSMERR_DL_UNSUPPORTED_QUERY);
+
+       mData = inPredicate.Attribute.Value[0];
+       mValue = mMetaAttribute.createValue(mData);
+}
+
+SelectionPredicate::~SelectionPredicate()
+{
+       delete mValue;
+}
+
+bool
+SelectionPredicate::evaluate(const ReadSection &rs) const
+{
+    return mMetaAttribute.evaluate(mValue, rs, mDbOperator);
+}