Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 144 insertions, 0 deletions

diff --git a/qpid/cpp/include/qpid/messaging/Receiver.h b/qpid/cpp/include/qpid/messaging/Receiver.h
new file mode 100644
index 0000000000..13317dfcbd
--- /dev/null
+++ b/qpid/cpp/include/qpid/messaging/Receiver.h
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+#ifndef QPID_MESSAGING_RECEIVER_H
+#define QPID_MESSAGING_RECEIVER_H
+
+/*
+ *
+ * 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/ImportExport.h"
+
+#include "qpid/messaging/exceptions.h"
+#include "qpid/messaging/Handle.h"
+#include "qpid/messaging/Duration.h"
+
+namespace qpid {
+namespace messaging {
+
+#ifndef SWIG
+template <class> class PrivateImplRef;
+#endif
+
+class Message;
+class ReceiverImpl;
+class Session;
+
+/**   \ingroup messaging 
+ * Interface through which messages are received.
+ */
+class QPID_MESSAGING_CLASS_EXTERN Receiver : public qpid::messaging::Handle<ReceiverImpl>
+{
+  public:
+    QPID_MESSAGING_EXTERN Receiver(ReceiverImpl* impl = 0);
+    QPID_MESSAGING_EXTERN Receiver(const Receiver&);
+    QPID_MESSAGING_EXTERN ~Receiver();
+    QPID_MESSAGING_EXTERN Receiver& operator=(const Receiver&);
+    /**
+     * Retrieves a message from this receivers local queue, or waits
+     * for upto the specified timeout for a message to become
+     * available.
+     */
+    QPID_MESSAGING_EXTERN bool get(Message& message, Duration timeout=Duration::FOREVER);
+    /**
+     * Retrieves a message from this receivers local queue, or waits
+     * for up to the specified timeout for a message to become
+     * available.
+     *
+     * @exception NoMessageAvailable if there is no message to give
+     * after waiting for the specified timeout, or if the Receiver is
+     * closed, in which case isClose() will be true.
+     */
+    QPID_MESSAGING_EXTERN Message get(Duration timeout=Duration::FOREVER);
+    /**
+     * Retrieves a message for this receivers subscription or waits
+     * for up to the specified timeout for one to become
+     * available. Unlike get() this method will check with the server
+     * that there is no message for the subscription this receiver is
+     * serving before returning false.
+     *
+     * @return false if there is no message to give after
+     * waiting for the specified timeout, or if the Receiver is
+     * closed, in which case isClose() will be true.
+     */
+    QPID_MESSAGING_EXTERN bool fetch(Message& message, Duration timeout=Duration::FOREVER);
+    /**
+     * Retrieves a message for this receivers subscription or waits
+     * for up to the specified timeout for one to become
+     * available. Unlike get() this method will check with the server
+     * that there is no message for the subscription this receiver is
+     * serving before throwing an exception.
+     *
+     * @exception NoMessageAvailable if there is no message to give
+     * after waiting for the specified timeout, or if the Receiver is
+     * closed, in which case isClose() will be true.
+     */
+    QPID_MESSAGING_EXTERN Message fetch(Duration timeout=Duration::FOREVER);
+    /**
+     * Sets the capacity for the receiver. The capacity determines how
+     * many incoming messages can be held in the receiver before being
+     * requested by a client via fetch() (or pushed to a listener).
+     */
+    QPID_MESSAGING_EXTERN void setCapacity(uint32_t);
+    /**
+     * @return the capacity of the receiver. The capacity determines
+     * how many incoming messages can be held in the receiver before
+     * being requested by a client via fetch() (or pushed to a
+     * listener).
+     */
+    QPID_MESSAGING_EXTERN uint32_t getCapacity();
+    /**
+     * @return the number of messages received and waiting to be
+     * fetched.
+     */
+    QPID_MESSAGING_EXTERN uint32_t getAvailable();
+    /**
+     * @return a count of the number of messages received on this
+     * receiver that have been acknowledged, but for which that
+     * acknowledgement has not yet been confirmed as processed by the
+     * server.
+     */
+    QPID_MESSAGING_EXTERN uint32_t getUnsettled();
+
+    /**
+     * Cancels this receiver.
+     */
+    QPID_MESSAGING_EXTERN void close();
+
+    /**
+     * Return true if the receiver was closed by a call to close()
+     */
+    QPID_MESSAGING_EXTERN bool isClosed() const;
+
+    /**
+     * Returns the name of this receiver.
+     */
+    QPID_MESSAGING_EXTERN const std::string& getName() const;
+
+    /**
+     * Returns a handle to the session associated with this receiver.
+     */
+    QPID_MESSAGING_EXTERN Session getSession() const;
+
+#ifndef SWIG
+  private:
+  friend class qpid::messaging::PrivateImplRef<Receiver>;
+#endif
+};
+}} // namespace qpid::messaging
+
+#endif  /*!QPID_MESSAGING_RECEIVER_H*/