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#ifndef _QmfEngineQuery_
#define _QmfEngineQuery_
/*
* 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 <qpid/messaging/Variant.h>
namespace qmf {
namespace engine {
class QueryImpl;
class Query {
public:
Query(const char* target);
Query(const char* target, const qpid::messaging::Variant::List& predicate);
Query(const char* target, const char* expression);
Query(const Query& from);
~Query();
void where(const qpid::messaging::Variant::List& predicate);
void where(const char* expression);
void limit(uint32_t maxResults);
void orderBy(const char* attrName, bool decreasing);
bool havePredicate() const;
bool haveLimit() const;
bool haveOrderBy() const;
const qpid::messaging::Variant::List& getPredicate() const;
uint32_t getLimit() const;
const char* getOrderBy() const;
bool getDecreasing() const;
bool matches(const qpid::messaging::Variant::Map& data) const;
private:
friend struct QueryImpl;
friend struct BrokerProxyImpl;
Query(QueryImpl*);
QueryImpl* impl;
};
}
}
#endif
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