QMF updates:

  - Refactored into two namespaces:
     1) 'qmf' for the public QMF api (c++)
     2) 'qmf::engine' for the public engine API (used for language bindings)
  - Added object and first_object calls to Console (in Ruby)
  - Made objects call compatible with the kwarg arguments used in the older API
  - Added to_s functions to classes that needed them


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@818994 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 100 insertions, 0 deletions

diff --git a/cpp/src/qmf/engine/QueryImpl.h b/cpp/src/qmf/engine/QueryImpl.h
new file mode 100644
index 0000000000..2c64c6739c
--- /dev/null
+++ b/cpp/src/qmf/engine/QueryImpl.h
@@ -0,0 +1,100 @@
+#ifndef _QmfEngineQueryImpl_
+#define _QmfEngineQueryImpl_
+
+/*
+ * 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.
+ */
+
+#include "qmf/engine/Query.h"
+#include "qmf/engine/Schema.h"
+#include <string>
+#include <boost/shared_ptr.hpp>
+
+namespace qpid {
+    namespace framing {
+        class Buffer;
+    }
+}
+
+namespace qmf {
+namespace engine {
+
+    struct QueryElementImpl {
+        QueryElementImpl(const std::string& a, const Value* v, ValueOper o) : attrName(a), value(v), oper(o) {}
+        ~QueryElementImpl() {}
+        bool evaluate(const Object* object) const;
+
+        std::string attrName;
+        const Value* value;
+        ValueOper oper;
+    };
+
+    struct QueryExpressionImpl {
+        QueryExpressionImpl(ExprOper o, const QueryOperand* operand1, const QueryOperand* operand2) : oper(o), left(operand1), right(operand2) {}
+        ~QueryExpressionImpl() {}
+        bool evaluate(const Object* object) const;
+
+        ExprOper oper;
+        const QueryOperand* left;
+        const QueryOperand* right;
+    };
+
+    struct QueryImpl {
+        // Constructors mapped to public
+        QueryImpl(const std::string& c, const std::string& p) : packageName(p), className(c), select(0), resultLimit(0) {}
+        QueryImpl(const SchemaClassKey* key) : packageName(key->getPackageName()), className(key->getClassName()), select(0), resultLimit(0) {}
+        QueryImpl(const ObjectId* oid) : oid(new ObjectId(*oid)), select(0), resultLimit(0) {}
+
+        // Factory constructors
+        QueryImpl(qpid::framing::Buffer& buffer);
+
+        ~QueryImpl() {};
+        static Query* factory(qpid::framing::Buffer& buffer);
+
+        void setSelect(const QueryOperand* criterion) { select = criterion; }
+        void setLimit(uint32_t maxResults) { resultLimit = maxResults; }
+        void setOrderBy(const std::string& attrName, bool decreasing) {
+            orderBy = attrName; orderDecreasing = decreasing;
+        }
+
+        const std::string& getPackage() const { return packageName; }
+        const std::string&  getClass() const { return className; }
+        const ObjectId* getObjectId() const { return oid.get(); }
+
+        bool haveSelect() const { return select != 0; }
+        bool haveLimit() const { return resultLimit > 0; }
+        bool haveOrderBy() const { return !orderBy.empty(); }
+        const QueryOperand* getSelect() const { return select; }
+        uint32_t getLimit() const { return resultLimit; }
+        const std::string& getOrderBy() const { return orderBy; }
+        bool getDecreasing() const { return orderDecreasing; }
+
+        void encode(qpid::framing::Buffer& buffer) const;
+
+        std::string packageName;
+        std::string className;
+        boost::shared_ptr<ObjectId> oid;
+        const QueryOperand* select;
+        uint32_t resultLimit;
+        std::string orderBy;
+        bool orderDecreasing;
+    };
+}
+}
+
+#endif