From 918377f18998e6e287487a784edb3cb96a9c6714 Mon Sep 17 00:00:00 2001
From: Sebastien Brisard <celestin@apache.org>
Date: Wed, 31 Aug 2011 07:41:25 +0000
Subject: [PATCH] Removed occurences of double[] from RealLinearOperator (see
 MATH-653) method double[] operate(double[]) has been left in
 AbstractRealMatrix, according to exchanges on this JIRA ticket.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1163515 13f79535-47bb-0310-9956-ffa450edef68
---
 .../math/linear/AbstractRealMatrix.java       |  1 -
 .../math/linear/RealLinearOperator.java       | 22 ++-----------------
 2 files changed, 2 insertions(+), 21 deletions(-)

diff --git a/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java b/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
index 3d31a6f52..85aa85c62 100644
--- a/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
@@ -625,7 +625,6 @@ public abstract class AbstractRealMatrix
     }
 
     /** {@inheritDoc} */
-    @Override
     public double[] operate(final double[] v) {
         final int nRows = getRowDimension();
         final int nCols = getColumnDimension();
diff --git a/src/main/java/org/apache/commons/math/linear/RealLinearOperator.java b/src/main/java/org/apache/commons/math/linear/RealLinearOperator.java
index 1c2065f3b..0dda5796f 100644
--- a/src/main/java/org/apache/commons/math/linear/RealLinearOperator.java
+++ b/src/main/java/org/apache/commons/math/linear/RealLinearOperator.java
@@ -17,8 +17,6 @@
 
 package org.apache.commons.math.linear;
 
-import org.apache.commons.math.exception.DimensionMismatchException;
-
 /**
  * This class defines a linear operator operating on real ({@code double})
  * vector spaces.
@@ -70,24 +68,8 @@ public abstract class RealLinearOperator {
      *
      * @param x Vector to operate on.
      * @return the product of {@code this} instance with {@code x}.
-     */
-    public double[] operate(final double[] x) {
-        if (x.length != getColumnDimension()) {
-            throw new DimensionMismatchException(x.length, getColumnDimension());
-        }
-        final RealVector y = operate(new ArrayRealVector(x, false));
-        if (y instanceof ArrayRealVector) {
-            return ((ArrayRealVector) y).getDataRef();
-        } else {
-            return y.getData();
-        }
-    }
-
-    /**
-     * Returns the result of multiplying {@code this} by the vector {@code x}.
-     *
-     * @param x Vector to operate on.
-     * @return the product of {@code this} instance with {@code x}.
+     * @throws org.apache.commons.math.exception.DimensionMismatchException
+     *         if {@code getColumnDimension() != v.getDimension()}
      */
     public abstract RealVector operate(final RealVector x);
 }