svn commit: r771164 - in /commons/proper/math/trunk/src/java/org/apache/commons/math/linear: SparseFieldVector.java SparseRealVector.java

[billbarker]

Author: billbarker
Date: Mon May  4 02:55:21 2009
New Revision: 771164

URL: http://svn.apache.org/viewvc?rev=771164&view=rev
Log:
Adding equals and hashCode

Modified:
    
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseFieldVector.java
    
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseRealVector.java

Modified: 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseFieldVector.java
URL: 
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseFieldVector.java?rev=771164&r1=771163&r2=771164&view=diff
==============================================================================
--- 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseFieldVector.java
 (original)
+++ 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseFieldVector.java
 Mon May  4 02:55:21 2009
@@ -90,7 +90,6 @@
         entries = new OpenIntToFieldHashMap<T> (field,expectedSize);
     }
 
-    
     /**
      * Create from a Field array.
      * Only non-zero entries will be stored
@@ -581,5 +580,59 @@
     }
 
 
+    /** {...@inheritdoc} */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((field == null) ? 0 : field.hashCode());
+        result = prime * result + virtualSize;
+        OpenIntToFieldHashMap<T>.Iterator iter = entries.iterator();
+        while (iter.hasNext()) {
+            iter.advance();
+            int temp = iter.value().hashCode();
+            result = prime * result + temp;
+        }
+        return result;
+    }
+
+
+    /** {...@inheritdoc} */
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (!(obj instanceof SparseFieldVector))
+            return false;
+        SparseFieldVector<T> other = (SparseFieldVector<T>) obj;
+        if (field == null) {
+            if (other.field != null)
+                return false;
+        } else if (!field.equals(other.field))
+            return false;
+        if (virtualSize != other.virtualSize)
+            return false;
+        OpenIntToFieldHashMap<T>.Iterator iter = entries.iterator();
+        while (iter.hasNext()) {
+            iter.advance();
+            T test = other.getEntry(iter.key());
+            if (!test.equals(iter.value())) {
+                return false;
+            }
+        }
+        iter = other.getEntries().iterator();
+        while (iter.hasNext()) {
+            iter.advance();
+            T test = iter.value();
+            if (!test.equals(getEntry(iter.key()))) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+
     
 }

Modified: 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseRealVector.java
URL: 
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseRealVector.java?rev=771164&r1=771163&r2=771164&view=diff
==============================================================================
--- 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseRealVector.java
 (original)
+++ 
commons/proper/math/trunk/src/java/org/apache/commons/math/linear/SparseRealVector.java
 Mon May  4 02:55:21 2009
@@ -1290,7 +1290,7 @@
         while (iter.hasNext()) {
             iter.advance();
             double test = iter.value();
-            if (Double.doubleToLongBits(test) != 
Double.doubleToLongBits(iter.value())) {
+            if (Double.doubleToLongBits(test) != 
Double.doubleToLongBits(getEntry(iter.key()))) {
                 return false;
             }
         }