Examples of java.nio.ByteBuffer.rewind()

java.nio.ByteBuffer.rewind()

          // No overflow bucket yet, create one
          overflowID = createOverflowBucket();


          // Link overflow bucket to current bucket
          bucket.putInt(ITEM_SIZE * bucketSize, overflowID);
          bucket.rewind();
          nioFile.write(bucket, bucketOffset);
        }


        // Continue searching for an empty slot in the overflow bucket
        bucketOffset = getOverflowBucketOffset(overflowID);

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    buf.put(MAGIC_NUMBER);
    buf.put(FILE_FORMAT_VERSION);
    buf.putInt(bucketCount);
    buf.putInt(bucketSize);
    buf.putInt(itemCount);
    buf.rewind();


    nioFile.write(buf, 0L);
  }


  /**

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  {
    ByteBuffer emptyBucket = ByteBuffer.allocate(recordSize);


    for (int i = 0; i < bucketCount; i++) {
      nioFile.write(emptyBucket, fileOffset + i * (long)recordSize);
      emptyBucket.rewind();
    }
  }


  private int findEmptySlotInBucket(ByteBuffer bucket) {
    for (int slotNo = 0; slotNo < bucketSize; slotNo++) {

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        height, null);


    // Put the pixel data of the BufferedImage into a ByteBuffer
    ByteBuffer pixel_buffer = ByteBuffer.allocateDirect(3 * width * height);
    pixel_buffer.put(data);
    pixel_buffer.rewind();


    // Generate the texture
    generate(pixel_buffer, width, height, internalFormat);
  }

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            // Read the page
            fileChannel.position( offset );


            ByteBuffer data = ByteBuffer.allocate( pageSize );
            fileChannel.read( data );
            data.rewind();


            PageIO readPage = new PageIO( offset );
            readPage.setData( data );


            return readPage;

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        ByteBuffer header = ByteBuffer.allocate( HEADER_SIZE );


        // load the header 
        fileChannel.read( header );


        header.rewind();


        // The page size
        int pageSize = header.getInt();


        // The number of managed BTrees

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            ByteBuffer header = ByteBuffer.allocate( HEADER_SIZE );


            // The file exists, we have to load the data now 
            fileChannel.read( header );


            header.rewind();


            // The page size
            pageSize = header.getInt();


            // The number of managed BTrees

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                    int oldLimit = pageData.limit();
                    pageData.limit( pagePos + length );
                    bytes.put( pageData );
                    pageData.limit( oldLimit );
                    pageData.reset();
                    bytes.rewind();


                    return bytes;
                }


                pageData.mark();

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                pageData = pageIos[pageNb].getData();
                length -= remaining;
                remaining = pageData.capacity() - pagePos;
            }


            bytes.rewind();


            return bytes;
        }
    }

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    // assert delegation tokens are saved
    DataOutputBuffer dob = new DataOutputBuffer();
    ts.writeTokenStorageToStream(dob);
    ByteBuffer securityTokens =
        ByteBuffer.wrap(dob.getData(), 0, dob.getLength());
    securityTokens.rewind();
    Assert.assertEquals(securityTokens, appState
      .getApplicationSubmissionContext().getAMContainerSpec()
      .getTokens());


    // start new RM

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