diff options
author | Christian Schneppe <christian@pix-art.de> | 2018-05-02 20:39:37 +0200 |
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committer | Christian Schneppe <christian@pix-art.de> | 2018-05-02 20:39:37 +0200 |
commit | e3219fbd72db13e3b1ec57c181e670f8bfe957a8 (patch) | |
tree | 2fcd3ddc3e5ac701d00be957e6fc25f7dbca3273 /src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java | |
parent | 41d726ef73a20e7e7ee1ff81c5f8326aa0e6c7d8 (diff) |
added search result context menu + date separators
Diffstat (limited to 'src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java')
-rw-r--r-- | src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java b/src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java new file mode 100644 index 000000000..c21c2fbb7 --- /dev/null +++ b/src/main/java/de/pixart/messenger/ui/util/ChangeWatcher.java @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2018, Daniel Gultsch All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. 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. + * + * 3. Neither the name of the copyright holder 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 de.pixart.messenger.ui.util; + +public class ChangeWatcher<T> { + + private T object = null; + + public synchronized boolean watch(T object) { + if (this.object == null) { + this.object = object; + return object != null; + } else { + final boolean changed = !this.object.equals(object); + this.object = object; + return changed; + } + } + +}
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