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------------------------------------------------------------
revno: 12092
committer: Lars Helge Øverland <larshelge@xxxxxxxxx>
branch nick: dhis2
timestamp: Sun 2013-09-15 20:11:45 +0200
message:
  Added class SetBuilder
added:
  dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection/
  dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection/SetBuilder.java


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=== added directory 'dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection'
=== added file 'dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection/SetBuilder.java'
--- dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection/SetBuilder.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/collection/SetBuilder.java	2013-09-15 18:11:45 +0000
@@ -0,0 +1,76 @@
+package org.hisp.dhis.system.collection;
+
+/*
+ * Copyright (c) 2004-2013, University of Oslo
+ * 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 HISP project 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 OWNER 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.
+ */
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * @author Lars Helge Overland
+ */
+public class SetBuilder<E>
+{
+    private Set<E> set;
+    
+    public SetBuilder()
+    {
+        set = new HashSet<E>();
+    }
+    
+    public SetBuilder<E> add( E element )
+    {
+        set.add( element );
+        return this;
+    }
+    
+    public SetBuilder<E> add( E... elements )
+    {
+        for ( E element : elements )
+        {
+            set.add( element );
+        }
+        
+        return this;
+    }
+    
+    public SetBuilder<E> addAll( Collection<? extends E> collection )
+    {
+        set.addAll( collection );
+        return this;
+    }
+    
+    /**
+     * Returns an immutable Set based on the content of the builder.
+     */
+    public Set<E> build()
+    {
+        return new HashSet<E>( set );
+    }
+}