Examples of java.nio.ByteBuffer.asDoubleBuffer()

java.nio.ByteBuffer.asDoubleBuffer()
Returns a double buffer which is based on the remaining content of this byte buffer.
The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by two, and its mark is not set. The new buffer's readonly property and byte order are same as this buffer. The new buffer is direct, if this byte buffer is direct.

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 double buffer which is based on the content ofthis byte buffer.

                result = array;
                break;
            }
            case VariableInfo.DOUBLE: {
                final double[] array = new double[length];
                buffer.asDoubleBuffer().get(array);
                result = array;
                break;
            }
            default: {
                throw malformedHeader();

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          ByteArrayInputStream bis = new ByteArrayInputStream(buf.array());
          return bis;
        } else if (type.getName().equals(CAS.TYPE_NAME_DOUBLE_ARRAY)) {
          arrayStart = this.heap.heap[getArrayStartAddress(fs.getAddress())];
          buf = ByteBuffer.allocate(arraySize * 8);
          DoubleBuffer doublebuf = buf.asDoubleBuffer();
          double[] doubleArray = new double[arraySize];
          for (int i = arrayStart; i < arrayStart + arraySize; i++) {
            doubleArray[i - arrayStart] = Double.longBitsToDouble(this.longHeap.heap[i]);
          }
          doublebuf.put(doubleArray);

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    LongBuffer lBuffer = buffer.asLongBuffer();
    lBuffer.position(1);
    System.out.println(Memory.getPosition(lBuffer));
    
    DoubleBuffer dBuffer = buffer.asDoubleBuffer();
    dBuffer.position(1);
    System.out.println(Memory.getPosition(dBuffer));
  }
}

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  public static DoubleBuffer newDoubleBuffer (int numDoubles) {
    if (GWT.isProdMode()) {
      ByteBuffer buffer = ByteBuffer.allocateDirect(numDoubles * 8);
      buffer.order(ByteOrder.nativeOrder());
      return buffer.asDoubleBuffer();
    } else {
      return DoubleBuffer.wrap(new double[numDoubles]);
    }
  }

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  public static DoubleBuffer newDoubleBuffer (int numDoubles) {
    if (GWT.isProdMode()) {
      ByteBuffer buffer = ByteBuffer.allocateDirect(numDoubles * 8);
      buffer.order(ByteOrder.nativeOrder());
      return buffer.asDoubleBuffer();
    } else {
      return DoubleBuffer.wrap(new double[numDoubles]);
    }
  }

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          ByteArrayInputStream bis = new ByteArrayInputStream(buf.array());
          return bis;
        } else if (type.getName().equals(CAS.TYPE_NAME_DOUBLE_ARRAY)) {
          arrayStart = this.getHeap().heap[getArrayStartAddress(fs.getAddress())];
          buf = ByteBuffer.allocate(arraySize * 8);
          DoubleBuffer doublebuf = buf.asDoubleBuffer();
          double[] doubleArray = new double[arraySize];
          for (int i = arrayStart; i < arrayStart + arraySize; i++) {
            doubleArray[i - arrayStart] = Double.longBitsToDouble(this.getLongHeap().heap[i]);
          }
          doublebuf.put(doubleArray);

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    }
    public void testDoubleBufferGet() {
        final double MAGIC = 1234.5678;
        Memory m = new Memory(8);
        ByteBuffer buf = m.getByteBuffer(0, m.getSize()).order(ByteOrder.nativeOrder());
        DoubleBuffer db = buf.asDoubleBuffer();
        m.setDouble(0, MAGIC);
        assertEquals("Double not read from memory", MAGIC, 
                db.get(0));
    }
    public void testSetStringWithEncoding() throws Exception {

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        assertEquals("LongBuffer Pointer does not match", 
                     p, Native.getDirectBufferPointer(b.asLongBuffer()));
        assertEquals("FloatBuffer Pointer does not match", 
                     p, Native.getDirectBufferPointer(b.asFloatBuffer()));
        assertEquals("DoubleBuffer Pointer does not match", 
                     p, Native.getDirectBufferPointer(b.asDoubleBuffer()));
    }


    public static void main(String[] args) {
        junit.textui.TestRunner.run(PointerTest.class);
    }

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    }
    public void testDoubleBufferPut() {
        final double MAGIC = 1234.5678;
        Memory m = new Memory(8);
        ByteBuffer buf = m.getByteBuffer(0, m.getSize()).order(ByteOrder.nativeOrder());
        DoubleBuffer db = buf.asDoubleBuffer();
        db.put(MAGIC).flip();
        assertEquals("Int not written to memory", MAGIC, 
                m.getDouble(0));
    }
    public void testIntBufferGet() {

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          ByteArrayInputStream bis = new ByteArrayInputStream(buf.array());
          return bis;
        } else if (type.getName().equals(CAS.TYPE_NAME_DOUBLE_ARRAY)) {
          arrayStart = this.getHeap().heap[getArrayStartAddress(fs.getAddress())];
          buf = ByteBuffer.allocate(arraySize * 8);
          DoubleBuffer doublebuf = buf.asDoubleBuffer();
          double[] doubleArray = new double[arraySize];
          for (int i = arrayStart; i < arrayStart + arraySize; i++) {
            doubleArray[i - arrayStart] = Double.longBitsToDouble(this.getLongHeap().heap[i]);
          }
          doublebuf.put(doubleArray);

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