Examples of java.io.DataOutput.writeLong()

java.io.DataOutput.writeLong()
Writes a long value, which is comprised of eight bytes, to the output stream. The byte values to be written, in the order shown, are:
```
 (byte)(0xff & (v >> 56)) (byte)(0xff & (v >> 48)) (byte)(0xff & (v >> 40)) (byte)(0xff & (v >> 32)) (byte)(0xff & (v >> 24)) (byte)(0xff & (v >> 16)) (byte)(0xff & (v >>  8)) (byte)(0xff & v) 
```
The bytes written by this method may be read by the readLong method of interface DataInput , which will then return a long equal to v. @param v the long value to be written. @throws IOException if an I/O error occurs.


    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutput baosDos = new DataOutputStream(baos);


    BlockType.TRAILER.write(baosDos);
    baosDos.writeLong(fileInfoOffset);
    baosDos.writeLong(loadOnOpenDataOffset);
    baosDos.writeInt(dataIndexCount);


    if (version == 1) {
      // This used to be metaIndexOffset, but it was not used in version 1.

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    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutput baosDos = new DataOutputStream(baos);


    BlockType.TRAILER.write(baosDos);
    baosDos.writeLong(fileInfoOffset);
    baosDos.writeLong(loadOnOpenDataOffset);
    baosDos.writeInt(dataIndexCount);


    if (version == 1) {
      // This used to be metaIndexOffset, but it was not used in version 1.
      baosDos.writeLong(0);

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    baosDos.writeLong(loadOnOpenDataOffset);
    baosDos.writeInt(dataIndexCount);


    if (version == 1) {
      // This used to be metaIndexOffset, but it was not used in version 1.
      baosDos.writeLong(0);
    } else {
      baosDos.writeLong(uncompressedDataIndexSize);
    }


    baosDos.writeInt(metaIndexCount);

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    if (version == 1) {
      // This used to be metaIndexOffset, but it was not used in version 1.
      baosDos.writeLong(0);
    } else {
      baosDos.writeLong(uncompressedDataIndexSize);
    }


    baosDos.writeInt(metaIndexCount);
    baosDos.writeLong(totalUncompressedBytes);
    if (version == 1) {

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    } else {
      baosDos.writeLong(uncompressedDataIndexSize);
    }


    baosDos.writeInt(metaIndexCount);
    baosDos.writeLong(totalUncompressedBytes);
    if (version == 1) {
      baosDos.writeInt((int) Math.min(Integer.MAX_VALUE, entryCount));
    } else {
      // This field is long from version 2 onwards.
      baosDos.writeLong(entryCount);

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    baosDos.writeLong(totalUncompressedBytes);
    if (version == 1) {
      baosDos.writeInt((int) Math.min(Integer.MAX_VALUE, entryCount));
    } else {
      // This field is long from version 2 onwards.
      baosDos.writeLong(entryCount);
    }
    baosDos.writeInt(compressionCodec.ordinal());


    if (version > 1) {
      baosDos.writeInt(numDataIndexLevels);

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    }
    baosDos.writeInt(compressionCodec.ordinal());


    if (version > 1) {
      baosDos.writeInt(numDataIndexLevels);
      baosDos.writeLong(firstDataBlockOffset);
      baosDos.writeLong(lastDataBlockOffset);
      Bytes.writeStringFixedSize(baosDos, comparatorClassName,
          MAX_COMPARATOR_NAME_LENGTH);
    }
    baosDos.writeInt(version);

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    baosDos.writeInt(compressionCodec.ordinal());


    if (version > 1) {
      baosDos.writeInt(numDataIndexLevels);
      baosDos.writeLong(firstDataBlockOffset);
      baosDos.writeLong(lastDataBlockOffset);
      Bytes.writeStringFixedSize(baosDos, comparatorClassName,
          MAX_COMPARATOR_NAME_LENGTH);
    }
    baosDos.writeInt(version);

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        @Override
        public void write(RevTree tree, OutputStream out) throws IOException {
            DataOutput data = new DataOutputStream(out);
            writeHeader(data, "tree");
            data.writeLong(tree.size());
            data.writeInt(tree.numTrees());


            Envelope envBuff = new Envelope();


            if (tree.features().isPresent()) {

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   * Write object id as long, then the object {@link UID}.
   */
  public void write(ObjectOutput out) throws IOException
  {
    DataOutput dout = (DataOutput) out;
    dout.writeLong(objNum);
    space.write(dout);
  }


  /**
   * Read object id (as long), then the object {@link UID}.

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