implement iterable interface

scm-core/src/main/java/sonia/scm/repository/BlameResult.java

@@ -36,11 +36,13 @@ package sonia.scm.repository;
 //~--- non-JDK imports --------------------------------------------------------
 
 import com.google.common.base.Objects;
+import com.google.common.collect.Lists;
 
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.Serializable;
 
+import java.util.Iterator;
 import java.util.List;
 
 import javax.xml.bind.annotation.XmlAccessType;
@@ -59,7 +61,7 @@ import javax.xml.bind.annotation.XmlRootElement;
  */
 @XmlRootElement(name = "blame-result")
 @XmlAccessorType(XmlAccessType.FIELD)
-public class BlameResult implements Serializable
+public class BlameResult implements Serializable, Iterable<BlameLine>
 {
 
   /** Field description */
@@ -139,6 +141,20 @@ public class BlameResult implements Serializable
     return Objects.hashCode(total, blameLines);
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   * 
+   * @since 1.17
+   */
+  @Override
+  public Iterator<BlameLine> iterator()
+  {
+    return getBlameLines().iterator();
+  }
+
   /**
    * {@inheritDoc}
    *
@@ -166,6 +182,9 @@ public class BlameResult implements Serializable
    */
   public List<BlameLine> getBlameLines()
   {
+    if ( blameLines == null ){
+      blameLines = Lists.newArrayList();
+    }
     return blameLines;
   }