Examples of java.nio.ByteBuffer.slice()

java.nio.ByteBuffer.slice()
Returns a sliced buffer that shares content with this buffer.
The sliced buffer's capacity will be this buffer's remaining(), and its zero position will correspond to this buffer's current position. The new buffer's position will be 0, limit will be its capacity, and its mark is unset. The new buffer's readonly property and byte order are same as this buffer.

The new buffer shares content with this buffer, which means either buffer's change of content will be visible to the other. The two buffer's position, limit and mark are independent.
@return A sliced buffer that shares content with this buffer.

            if (encoding != DataBlockEncoding.NONE) {
              // We expect a two-byte big-endian encoding id.
              assertEquals(0, actualBuffer.get(0));
              assertEquals(encoding.getId(), actualBuffer.get(1));
              actualBuffer.position(2);
              actualBuffer = actualBuffer.slice();
            }


            ByteBuffer expectedBuffer = encodedBlocks.get(blockId);
            expectedBuffer.rewind();

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            if (encoding != DataBlockEncoding.NONE) {
              // We expect a two-byte big-endian encoding id.
              assertEquals(0, actualBuffer.get(0));
              assertEquals(encoding.getId(), actualBuffer.get(1));
              actualBuffer.position(2);
              actualBuffer = actualBuffer.slice();
            }


            ByteBuffer expectedBuffer = encodedBlocks.get(blockId);
            expectedBuffer.rewind();

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    ByteBuffer lowestKey = lowest.getKey();
    addReaderToQueueIfNotEmpty(reader);
    lastKey = SerializableValue.of(getByteBufferMarshaller(), lowestKey);
    if (combineValues) {
      CombiningReader values = new CombiningReader(lowestKey, lowest.getValue());
      return new KeyValue<K, Iterator<V>>(keyMarshaller.fromBytes(lowestKey.slice()), values);
    } else {
      return new KeyValue<>(keyMarshaller.fromBytes(lowestKey.slice()),
          lowest.getValue().iterator());
    }
  }

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    lastKey = SerializableValue.of(getByteBufferMarshaller(), lowestKey);
    if (combineValues) {
      CombiningReader values = new CombiningReader(lowestKey, lowest.getValue());
      return new KeyValue<K, Iterator<V>>(keyMarshaller.fromBytes(lowestKey.slice()), values);
    } else {
      return new KeyValue<>(keyMarshaller.fromBytes(lowestKey.slice()),
          lowest.getValue().iterator());
    }
  }


  private void addReaderToQueueIfNotEmpty(

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  }


  private void writeObject(ObjectOutputStream aOutputStream) throws IOException {
    aOutputStream.defaultWriteObject();
    ByteBuffer byteBuffer = marshaller.toBytes(value);
    aOutputStream.writeObject(SerializationUtil.getBytes(byteBuffer.slice()));
    // In case marshalling modified the item
    value = marshaller.fromBytes(byteBuffer);
  }
}

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          throw new RuntimeException("you need to seekTo() before calling getValue()");
        }
        // TODO: Could this be done with one ByteBuffer rather than create two?
        ByteBuffer valueBuff = this.block.slice();
        valueBuff.position(this.currKeyLen);
        valueBuff = valueBuff.slice();
        valueBuff.limit(currValueLen);
        valueBuff.rewind();
        return valueBuff;
      }

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    // note: actually searching an array of blooms that have been serialized
    for (int m = 0; m < readMatrixSize; ++m) {
      tmp.position(m* bytesPerBloom);
      tmp.limit(tmp.position() + bytesPerBloom);
      boolean match = this.matrix[0].contains(buf, offset, length, tmp.slice());
      if (match) {
        return true;
      }
    }

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        if (! Arrays.equals(magic, METABLOCKMAGIC)) {
          throw new IOException("Meta magic is bad in block " + block);
        }


        // Create a new ByteBuffer 'shallow copy' to hide the magic header
        buf = buf.slice();


        readTime += System.currentTimeMillis() - now;
        readOps++;


        // Cache the block

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        }


        // 'shallow copy' to hide the header
        // NOTE: you WILL GET BIT if you call buf.array() but don't start
        //       reading at buf.arrayOffset()
        buf = buf.slice();


        readTime += System.currentTimeMillis() - now;
        readOps++;


        // Cache the block

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  public int charAt(int position) {
    if (position > this.length) return -1; // too long
    if (position < 0) return -1; // duh.
      
    ByteBuffer bb = (ByteBuffer)ByteBuffer.wrap(bytes).position(position);
    return bytesToCodePoint(bb.slice());
  }
  
  public int find(String what) {
    return find(what, 0);
  }

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