Package com.tangosol.io

Class PackedDataOutputStream

java.lang.Object
java.io.OutputStream
com.tangosol.io.WrapperOutputStream
com.tangosol.io.PackedDataOutputStream
All Implemented Interfaces:
com.oracle.coherence.common.io.OutputStreaming, OutputStreaming, Closeable, DataOutput, Flushable, AutoCloseable
public class PackedDataOutputStream extends WrapperOutputStream implements DataOutput
This is an imitation DataOutputStream class that packs its data tighter using variable-length integers and supports UTF longer than 64KB.

Warning! This class is not intended to be thread-safe!

Author:
cp 2004.09.09

  • Constructor Details

    • PackedDataOutputStream

      public PackedDataOutputStream(OutputStream out)
      Construct a PackedDataOutputStream that will output to the specified OutputStream object.
      Parameters:
      out - an OutputStream to write to

  • Method Details

    • writeBoolean

      public void writeBoolean(boolean f) throws IOException
      Writes the boolean value f.
      Specified by:
      writeBoolean in interface DataOutput
      Parameters:
      f - the boolean to be written
      Throws:
      IOException - if an I/O error occurs

    • writeByte

      public void writeByte(int b) throws IOException
      Writes the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.
      Specified by:
      writeByte in interface DataOutput
      Parameters:
      b - the byte to write (passed as an integer)
      Throws:
      IOException - if an I/O error occurs

    • writeShort

      public void writeShort(int n) throws IOException
      Writes a short value, comprised of the 16 low-order bits of the argument n; the 16 high-order bits of n are ignored.
      Specified by:
      writeShort in interface DataOutput
      Parameters:
      n - the short to write (passed as an integer)
      Throws:
      IOException - if an I/O error occurs

    • writeChar

      public void writeChar(int ch) throws IOException
      Writes a char value, comprised of the 16 low-order bits of the argument ch; the 16 high-order bits of ch are ignored.
      Specified by:
      writeChar in interface DataOutput
      Parameters:
      ch - the char to write (passed as an integer)
      Throws:
      IOException - if an I/O error occurs

    • writeInt

      public void writeInt(int n) throws IOException
      Writes an int value.
      Specified by:
      writeInt in interface DataOutput
      Parameters:
      n - the int to write
      Throws:
      IOException - if an I/O error occurs

    • writeLong

      public void writeLong(long l) throws IOException
      Writes a long value.
      Specified by:
      writeLong in interface DataOutput
      Parameters:
      l - the long to write
      Throws:
      IOException - if an I/O error occurs

    • writeFloat

      public void writeFloat(float fl) throws IOException
      Writes a float value.
      Specified by:
      writeFloat in interface DataOutput
      Parameters:
      fl - the float to write
      Throws:
      IOException - if an I/O error occurs

    • writeDouble

      public void writeDouble(double dfl) throws IOException
      Writes a double value.
      Specified by:
      writeDouble in interface DataOutput
      Parameters:
      dfl - the double to write
      Throws:
      IOException - if an I/O error occurs

    • writeBytes

      public void writeBytes(String s) throws IOException
      Writes the String s, but only the low-order byte from each character of the String is written.
      Specified by:
      writeBytes in interface DataOutput
      Parameters:
      s - the String to write
      Throws:
      IOException - if an I/O error occurs
      NullPointerException - if s is null

    • writeChars

      public void writeChars(String s) throws IOException
      Writes the String s as a sequence of characters.
      Specified by:
      writeChars in interface DataOutput
      Parameters:
      s - the String to write
      Throws:
      IOException - if an I/O error occurs
      NullPointerException - if s is null

    • writeUTF

      public void writeUTF(String s) throws IOException
      Writes the String s as a sequence of characters, but using UTF-8 encoding for the characters, and including the String length data so that the corresponding DataInput.readUTF() method can reconstitute a String from the written data.
      Specified by:
      writeUTF in interface DataOutput
      Parameters:
      s - the String to write
      Throws:
      IOException - if an I/O error occurs
      NullPointerException - if s is null