X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fstructure%2FStructureCommand.java;h=0a7000b8167687eb1b18c7d6c73329a688f91bb3;hb=600851b134c738f1453881fa60a7b699377b8e52;hp=f7875ab764cab5e9730b1737bead90acf4306155;hpb=bee310c7b5755403cedfb7f717f65769bb4b59d5;p=jalview.git

diff --git a/src/jalview/structure/StructureCommand.java b/src/jalview/structure/StructureCommand.java
index f7875ab..0a7000b 100644
--- a/src/jalview/structure/StructureCommand.java
+++ b/src/jalview/structure/StructureCommand.java
@@ -72,4 +72,55 @@ public class StructureCommand implements StructureCommandI
     return sb.toString();
   }
 
+  @Override
+  public int hashCode()
+  {
+    int h = command.hashCode();
+    if (parameters != null)
+    {
+      for (String p : parameters)
+      {
+        h = h * 37 + p.hashCode();
+      }
+    }
+    return h;
+  }
+
+  /**
+   * Answers true if {@code obj} is a {@code StructureCommand} with the same
+   * command and parameters as this one, else false
+   */
+  @Override
+  public boolean equals(Object obj)
+  {
+    if (obj == null || !(obj instanceof StructureCommand))
+    {
+      return false;
+    }
+    StructureCommand sc = (StructureCommand) obj;
+
+    if (!command.equals(sc.command))
+    {
+      return false;
+    }
+    if (parameters == null || sc.parameters == null)
+    {
+      return (parameters == null) && (sc.parameters == null);
+    }
+
+    int j = parameters.size();
+    if (j != sc.parameters.size())
+    {
+      return false;
+    }
+    for (int i = 0; i < j; i++)
+    {
+      if (!parameters.get(i).equals(sc.parameters.get(i)))
+      {
+        return false;
+      }
+    }
+    return true;
+  }
+
 }