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Diffstat (limited to 'trunk/qpid/java/systests/src/main/java/org/apache/qpid/test/framework/clocksynch/ClockSynchronizer.java')
-rw-r--r-- | trunk/qpid/java/systests/src/main/java/org/apache/qpid/test/framework/clocksynch/ClockSynchronizer.java | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/trunk/qpid/java/systests/src/main/java/org/apache/qpid/test/framework/clocksynch/ClockSynchronizer.java b/trunk/qpid/java/systests/src/main/java/org/apache/qpid/test/framework/clocksynch/ClockSynchronizer.java deleted file mode 100644 index a92c551bc2..0000000000 --- a/trunk/qpid/java/systests/src/main/java/org/apache/qpid/test/framework/clocksynch/ClockSynchronizer.java +++ /dev/null @@ -1,69 +0,0 @@ -/* - * - * 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. - * - */ -package org.apache.qpid.test.framework.clocksynch; - -/** - * ClockSynchronizer provides an interface through which two nodes may synchronize their clocks. It is expected that one - * node will act as the reference clock, to which no delta need be applied, and the other node will act as the slave, - * and which must apply a delta to its local clock to get a clock synchronized with the reference. - * - * <p/>The slave side will initiate the computation of a clock delta by calling the {@link #synch} method. This method - * will not return until the delta has been computed, at which point there is a method to return its value, as well as - * an estimate of the likely error (usually one standard deviation), in the synchronization. For convenience there is a - * {@link #nanoTime} method to return the value of System.nanoTime() with the delta added in. - * - * <p/><table id="crc"><caption>CRC Card</caption> - * <tr><th> Responsibilities <th> Collaborations - * <tr><td> Trigger a clock synchronization. - * <tr><td> Compute a clock delta to apply to the local clock. - * <tr><td> Estimate the error in the synchronzation. - * </table> - */ -public interface ClockSynchronizer -{ - /** - * The slave side should call this to copute a clock delta with the reference. - * - * @throws ClockSynchFailureException If synchronization cannot be achieved. - */ - public void synch() throws ClockSynchFailureException; - - /** - * Gets the clock delta in nano seconds. - * - * @return The clock delta in nano seconds. - */ - public long getDelta(); - - /** - * Gets an estimate of the clock error in nan seconds. - * - * @return An estimate of the clock error in nan seconds. - */ - public long getEpsilon(); - - /** - * Gets the local clock time with any computed delta added in. - * - * @return The local clock time with any computed delta added in. - */ - public long nanoTime(); -} |