equals and hashcode for Selection

git-svn-id: https://olap4j.svn.sourceforge.net/svnroot/olap4j/trunk@313 c6a108a4-781c-0410-a6c6-c2d559e19af0

src/org/olap4j/query/SelectionImpl.java

@@ -6,7 +6,7 @@
 // Copyright (C) 2007-2010 Julian Hyde
 // All Rights Reserved.
 // You must accept the terms of that agreement to use this software.
-*/
+ */
 package org.olap4j.query;
 
 import java.util.ArrayList;
@@ -39,12 +39,12 @@ class SelectionImpl extends QueryNodeImpl implements Selection {
  * @pre operator != null
  */
  public SelectionImpl(
- Member member,
- Dimension dimension,
- String hierarchyName,
- String levelName,
- String memberName,
- Operator operator)
+  Member member,
+  Dimension dimension,
+  String hierarchyName,
+  String levelName,
+  String memberName,
+  Operator operator)
  {
  super();
  this.member = member;
@@ -55,6 +55,55 @@ public SelectionImpl(
  this.operator = operator;
  }
 
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result
+ + ((member == null) ? 0 : member.getUniqueName().hashCode());
+ result = prime * result
+ + ((operator == null) ? 0 : operator.hashCode());
+ result = prime * result
+ + ((selectionContext == null) ? 0 : selectionContext.hashCode());
+ return result;
+ }
+
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof SelectionImpl)) {
+ return false;
+ }
+ SelectionImpl other = (SelectionImpl) obj;
+ if (member == null) {
+ if (other.member != null) {
+ return false;
+ }
+ } else if (!member.getUniqueName().equals(
+ other.member.getUniqueName()))
+ {
+ return false;
+ }
+ if (operator == null) {
+ if (other.operator != null) {
+ return false;
+ }
+ } else if (!operator.equals(other.operator)) {
+ return false;
+ }
+ if (selectionContext == null) {
+ if (other.selectionContext != null) {
+ return false;
+ }
+ } else if (!selectionContext.equals(other.selectionContext)) {
+ return false;
+ }
+ return true;
+ }
+
  public String getName() {
  return memberName;
  }