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diff --git a/javax/obex/ObexTransport.java b/javax/obex/ObexTransport.java
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+/*
+ * Copyright (c) 2008-2009, Motorola, Inc.
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Motorola, Inc. nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package javax.obex;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * The <code>ObexTransport</code> interface defines the underlying transport
+ * connection which carries the OBEX protocol( such as TCP, RFCOMM device file
+ * exposed by Bluetooth or USB in kernel, RFCOMM socket emulated in Android
+ * platform, Irda). This interface provides an abstract layer to be used by the
+ * <code>ObexConnection</code>. Each kind of medium shall have its own
+ * implementation to wrap and follow the same interface.
+ * <P>
+ * See section 1.2.2 of IrDA Object Exchange Protocol specification.
+ * <P>
+ * Different kind of medium may have different construction - for example, the
+ * RFCOMM device file medium may be constructed from a file descriptor or simply
+ * a string while the TCP medium usually from a socket.
+ */
+public interface ObexTransport {
+
+    void create() throws IOException;
+
+    void listen() throws IOException;
+
+    void close() throws IOException;
+
+    void connect() throws IOException;
+
+    void disconnect() throws IOException;
+
+    InputStream openInputStream() throws IOException;
+
+    OutputStream openOutputStream() throws IOException;
+
+    DataInputStream openDataInputStream() throws IOException;
+
+    DataOutputStream openDataOutputStream() throws IOException;
+
+    /**
+     * Must return the maximum allowed OBEX packet that can be sent over
+     * the transport. For L2CAP this will be the Max SDU reported by the
+     * peer device.
+     * The returned value will be used to set the outgoing OBEX packet
+     * size. Therefore this value shall not change.
+     * For RFCOMM or other transport types where the OBEX packets size
+     * is unrelated to the transport packet size, return -1;
+     * Exception can be made (like PBAP transport) with a smaller value
+     * to avoid bad effect on other profiles using the RFCOMM;
+     * @return the maximum allowed OBEX packet that can be send over
+     *         the transport. Or -1 in case of don't care.
+     */
+    int getMaxTransmitPacketSize();
+
+    /**
+     * Must return the maximum allowed OBEX packet that can be received over
+     * the transport. For L2CAP this will be the Max SDU configured for the
+     * L2CAP channel.
+     * The returned value will be used to validate the incoming packet size
+     * values.
+     * For RFCOMM or other transport types where the OBEX packets size
+     * is unrelated to the transport packet size, return -1;
+     * @return the maximum allowed OBEX packet that can be send over
+     *         the transport. Or -1 in case of don't care.
+     */
+    int getMaxReceivePacketSize();
+
+    /**
+     * Shall return true if the transport in use supports SRM.
+     * @return
+     *        <code>true</code> if SRM operation is supported, and is to be enabled.
+     *        <code>false</code> if SRM operations are not supported, or should not be used.
+     */
+    boolean isSrmSupported();
+
+
+}