[Pig Wiki] Trivial Update of "PigMemory" by newacct

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The "PigMemory" page has been changed by newacct.
http://wiki.apache.org/pig/PigMemory?action=diff&rev1=4&rev2=5

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          static int bufferSize;
  
          static {
-             String bufsize = System.getProperties().getProperty("pig.memory.databuffer.size", "10240");
+             String bufsize = System.getProperty("pig.memory.databuffer.size", "10240");
-             bufferSize = Integer.valueOf(bufsize) * 1024;
+             bufferSize = Integer.parseInt(bufsize) * 1024;
          }
  
          byte[bufferSize] data;
@@ -260, +260 @@

           * then use it, otherwise create a new one.
           */
          TupleBuffer getTupleBuffer() {
-             if (availableTupleBuffers.size() > 0) {
+             if (!availableTupleBuffers.isEmpty()) {
                  return availableTupleBuffers.iterator().getNext();
              } else {
                  TupleBuffer tb = new TupleBuffer();
@@ -276, +276 @@

           * an existing full TupleBuffer to flush and then use its DataBuffer.
           */
          DataBuffer getDataBuffer() {
-             if (availableDataBuffers.size() > 0) {
+             if (!availableDataBuffers.isEmpty()) {
                  return availableDataBuffers.pop();
              } else {
                  if (numCreatedDataBuffers < maxDataBuffers) {
@@ -305, +305 @@

          TupleBuffer buf;
  
          // Offsets into the tuple buffer for each field.  A negative value
-         // indicates that the field is a complex type, and the absoluate value
+         // indicates that the field is a complex type, and the absolute value
          // yields the offsets into the complexFields array.  This is stored
          // as an array to avoid the overhead of an ArrayList.
          private int[] fieldOffsets;
  
          // Array of complex fields (tuples, bags, maps) in this tuple.  Stored
-         // as an aray to avoid the overhead of an array list.
+         // as an array to avoid the overhead of an array list.
          private Object[] complexFields;
  
          // Do not add any more member variables.  We want to keep the memory