svn commit: r1662262 - /pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java

[ti...@apache.org]

Author: tilman
Date: Wed Feb 25 16:58:19 2015
New Revision: 1662262

URL: http://svn.apache.org/r1662262
Log:
PDFBOX-2576: use interface; make class final

Modified:
    pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java

Modified: pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java?rev=1662262&r1=1662261&r2=1662262&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java (original)
+++ pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/contentstream/operator/Operator.java Wed Feb 25 16:58:19 2015
@@ -19,20 +19,21 @@ package org.apache.pdfbox.contentstream.
 import org.apache.pdfbox.cos.COSDictionary;
 
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 
 /**
  * An Operator in a PDF content stream.
  *
  * @author Ben Litchfield
  */
-public class Operator
+public final class Operator
 {
     private final String theOperator;
     private byte[] imageData;
     private COSDictionary imageParameters;
 
     /** map for singleton operator objects; use {@link ConcurrentHashMap} for better scalability with multiple threads */
-    private static final ConcurrentHashMap<String,Operator> operators = new ConcurrentHashMap<String, Operator>();
+    private static final ConcurrentMap<String,Operator> operators = new ConcurrentHashMap<String, Operator>();
 
     /**
      * Constructor.