fix:

- Removing dependencies: move 'AbstractHashable' to 'common' project.

SVN: 3448

common/source/java/ch/systemsx/cisd/common/utilities/AbstractHashable.java

+/*
+ * Copyright 2007 ETH Zuerich, CISD
+ *
+ * Licensed 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 ch.systemsx.cisd.common.utilities;
+
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.commons.lang.builder.EqualsBuilder;
+import org.apache.commons.lang.builder.HashCodeBuilder;
+import org.apache.commons.lang.builder.ToStringBuilder;
+
+
+/**
+ * If you want your class to behave correctly when used in {@link Map}s or {@link Set}s, you can do this by:
+ * <ol>
+ * <li>Extending this class</li>
+ * <li>Ensuring that all used field types implement <code>equals()</code> and <code>hashCode()</code> (e.g. by
+ * extending this class)</li>
+ * </ol>
+ * 
+ * @author Tomasz Pylak on Oct 26, 2007
+ */
+public abstract class AbstractHashable
+{
+    //
+    // Object
+    //
+
+    @Override
+    public final boolean equals(final Object obj)
+    {
+        return EqualsBuilder.reflectionEquals(this, obj);
+    }
+
+    @Override
+    public final int hashCode()
+    {
+        return HashCodeBuilder.reflectionHashCode(this);
+    }
+
+    @Override
+    public final String toString()
+    {
+        return ToStringBuilder.reflectionToString(this, ModifiedShortPrefixToStringStyle.MODIFIED_SHORT_PREFIX_STYLE);
+    }
+}