TupleOutput (Oracle - Berkeley DB Java API)
Date: 2012-05-11

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## com.sleepycat.bind.tuple
Class TupleOutput

    java.lang.Object
      java.io.OutputStream
          com.sleepycat.util.FastOutputStream
              com.sleepycat.bind.tuple.TupleOutput

All Implemented Interfaces:
  Closeable, Flushable

    public class TupleOutput

extends FastOutputStream

An `OutputStream` with `DataOutput`-like methods for writing tuple fields. It is used by `TupleBinding`.

This class has many methods that have the same signatures as methods in the `DataOutput` interface. The reason this class does not implement `DataOutput` is because it would break the interface contract for those methods because of data format differences.

See Also:
  Tuple Formats

Field Summary

Fields inherited from class com.sleepycat.util.FastOutputStream
`DEFAULT_BUMP_SIZE, DEFAULT_INIT_SIZE`

Constructor Summary
`TupleOutput()` Creates a tuple output object for writing a byte array of tuple data.
`TupleOutput(byte[] buffer)` Creates a tuple output object for writing a byte array of tuple data, using a given buffer.

Method Summary
`static int` | `getBigDecimalMaxByteLength(BigDecimal val)` Returns the maximum byte length that would be output for a given `BigDecimal` value if `writeBigDecimal(java.math.BigDecimal)` were called.
`static int` | `getBigIntegerByteLength(BigInteger val)` Returns the exact byte length that would would be output for a given `BigInteger` value if `writeBigInteger(java.math.BigInteger)` were called.
`static int` | `getSortedBigDecimalMaxByteLength(BigDecimal val)` Returns the maximum byte length that would be output for a given `BigDecimal` value if `writeSortedBigDecimal(java.math.BigDecimal)` were called.
`TupleOutput` | `writeBigDecimal(BigDecimal val)` Writes an unsorted `BigDecimal`.
`TupleOutput` | `writeBigInteger(BigInteger val)` Writes a `BigInteger`.
`TupleOutput` | `writeBoolean(boolean val)` Writes a boolean (one byte) unsigned value to the buffer, writing one if the value is true and zero if it is false.
`TupleOutput` | `writeByte(int val)` Writes an signed byte (one byte) value to the buffer.
`TupleOutput` | `writeBytes(char[] chars)` Writes the specified bytes to the buffer, converting each character to an unsigned byte value.
`TupleOutput` | `writeBytes(String val)` Writes the specified bytes to the buffer, converting each character to an unsigned byte value.
`TupleOutput` | `writeChar(int val)` Writes a char (two byte) unsigned value to the buffer.
`TupleOutput` | `writeChars(char[] chars)` Writes the specified characters to the buffer, converting each character to a two byte unsigned value.
`TupleOutput` | `writeChars(String val)` Writes the specified characters to the buffer, converting each character to a two byte unsigned value.
`TupleOutput` | `writeDouble(double val)` Writes an unsorted double (eight byte) value to the buffer.
`TupleOutput` | `writeFloat(float val)` Writes an unsorted float (four byte) value to the buffer.
`TupleOutput` | `writeInt(int val)` Writes an signed int (four byte) value to the buffer.
`TupleOutput` | `writeLong(long val)` Writes an signed long (eight byte) value to the buffer.
`TupleOutput` | `writePackedInt(int val)` Writes an unsorted packed integer.
`TupleOutput` | `writePackedLong(long val)` Writes an unsorted packed long integer.
`TupleOutput` | `writeShort(int val)` Writes an signed short (two byte) value to the buffer.
`TupleOutput` | `writeSortedBigDecimal(BigDecimal val)` Writes a sorted `BigDecimal`.
`TupleOutput` | `writeSortedDouble(double val)` Writes a sorted double (eight byte) value to the buffer.
`TupleOutput` | `writeSortedFloat(float val)` Writes a sorted float (four byte) value to the buffer.
`TupleOutput` | `writeSortedPackedInt(int val)` Writes a sorted packed integer.
`TupleOutput` | `writeSortedPackedLong(long val)` Writes a sorted packed long integer.
`TupleOutput` | `writeString(char[] chars)` Writes the specified characters to the buffer, converting each character to UTF format.
`TupleOutput` | `writeString(String val)` Writes the specified characters to the buffer, converting each character to UTF format, and adding a null terminator byte.
`TupleOutput` | `writeUnsignedByte(int val)` Writes an unsigned byte (one byte) value to the buffer.
`TupleOutput` | `writeUnsignedInt(long val)` Writes an unsigned int (four byte) value to the buffer.
`TupleOutput` | `writeUnsignedShort(int val)` Writes an unsigned short (two byte) value to the buffer.

Methods inherited from class com.sleepycat.util.FastOutputStream
`addSize, getBufferBytes, getBufferLength, getBufferOffset, makeSpace, reset, size, toByteArray, toString, toString, write, write, write, writeFast, writeFast, writeFast, writeTo`

Methods inherited from class java.io.OutputStream
`close, flush`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### TupleOutput

    public TupleOutput()

  Creates a tuple output object for writing a byte array of tuple data.

### TupleOutput

    public TupleOutput(byte[] buffer)

  Creates a tuple output object for writing a byte array of tuple data, using a given buffer. A new buffer will be allocated only if the number of bytes needed is greater than the length of this buffer. A reference to the byte array will be kept by this object and therefore the byte array should not be modified while this object is in use.

  Parameters:
    `buffer` - is the byte array to use as the buffer.

Method Detail

### writeBytes

    public final TupleOutput writeBytes(String val)

  Writes the specified bytes to the buffer, converting each character to an unsigned byte value. Writes values that can be read using `TupleInput.readBytes(int)`.

  Parameters:
    `val` - is the string containing the values to be written. Only characters with values below 0x100 may be written using this method, since the high-order 8 bits of all characters are discarded.
  Returns:
    this tuple output object.
  Throws:
    `NullPointerException` - if the val parameter is null.
  See Also:
    Integer Formats

### writeChars

    public final TupleOutput writeChars(String val)

  Writes the specified characters to the buffer, converting each character to a two byte unsigned value. Writes values that can be read using `TupleInput.readChars(int)`.

  Parameters:
    `val` - is the string containing the characters to be written.
  Returns:
    this tuple output object.
  Throws:
    `NullPointerException` - if the val parameter is null.
  See Also:
    Integer Formats

### writeString

    public final TupleOutput writeString(String val)

  Writes the specified characters to the buffer, converting each character to UTF format, and adding a null terminator byte. Writes values that can be read using `TupleInput.readString()`.

  Parameters:
    `val` - is the string containing the characters to be written.
  Returns:
    this tuple output object.
  See Also:
    String Formats

### writeChar

    public final TupleOutput writeChar(int val)

  Writes a char (two byte) unsigned value to the buffer. Writes values that can be read using `TupleInput.readChar()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeBoolean

    public final TupleOutput writeBoolean(boolean val)

  Writes a boolean (one byte) unsigned value to the buffer, writing one if the value is true and zero if it is false. Writes values that can be read using `TupleInput.readBoolean()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeByte

    public final TupleOutput writeByte(int val)

  Writes an signed byte (one byte) value to the buffer. Writes values that can be read using `TupleInput.readByte()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeShort

    public final TupleOutput writeShort(int val)

  Writes an signed short (two byte) value to the buffer. Writes values that can be read using `TupleInput.readShort()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeInt

    public final TupleOutput writeInt(int val)

  Writes an signed int (four byte) value to the buffer. Writes values that can be read using `TupleInput.readInt()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeLong

    public final TupleOutput writeLong(long val)

  Writes an signed long (eight byte) value to the buffer. Writes values that can be read using `TupleInput.readLong()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeFloat

    public final TupleOutput writeFloat(float val)

  Writes an unsorted float (four byte) value to the buffer. Writes values that can be read using `TupleInput.readFloat()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Floating Point Formats

### writeDouble

    public final TupleOutput writeDouble(double val)

  Writes an unsorted double (eight byte) value to the buffer. Writes values that can be read using `TupleInput.readDouble()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Floating Point Formats

### writeSortedFloat

    public final TupleOutput writeSortedFloat(float val)

  Writes a sorted float (four byte) value to the buffer. Writes values that can be read using `TupleInput.readSortedFloat()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Floating Point Formats

### writeSortedDouble

    public final TupleOutput writeSortedDouble(double val)

  Writes a sorted double (eight byte) value to the buffer. Writes values that can be read using `TupleInput.readSortedDouble()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Floating Point Formats

### writeBytes

    public final TupleOutput writeBytes(char[] chars)

  Writes the specified bytes to the buffer, converting each character to an unsigned byte value. Writes values that can be read using `TupleInput.readBytes(int)`.

  Parameters:
    `chars` - is the array of values to be written. Only characters with values below 0x100 may be written using this method, since the high-order 8 bits of all characters are discarded.
  Returns:
    this tuple output object.
  Throws:
    `NullPointerException` - if the chars parameter is null.
  See Also:
    Integer Formats

### writeChars

    public final TupleOutput writeChars(char[] chars)

  Writes the specified characters to the buffer, converting each character to a two byte unsigned value. Writes values that can be read using `TupleInput.readChars(int)`.

  Parameters:
    `chars` - is the array of characters to be written.
  Returns:
    this tuple output object.
  Throws:
    `NullPointerException` - if the chars parameter is null.
  See Also:
    Integer Formats

### writeString

    public final TupleOutput writeString(char[] chars)

  Writes the specified characters to the buffer, converting each character to UTF format. Writes values that can be read using `TupleInput.readString(int)` or `TupleInput.readString(char[])`.

  Parameters:
    `chars` - is the array of characters to be written.
  Returns:
    this tuple output object.
  Throws:
    `NullPointerException` - if the chars parameter is null.
  See Also:
    String Formats

### writeUnsignedByte

    public final TupleOutput writeUnsignedByte(int val)

  Writes an unsigned byte (one byte) value to the buffer. Writes values that can be read using `TupleInput.readUnsignedByte()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeUnsignedShort

    public final TupleOutput writeUnsignedShort(int val)

  Writes an unsigned short (two byte) value to the buffer. Writes values that can be read using `TupleInput.readUnsignedShort()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writeUnsignedInt

    public final TupleOutput writeUnsignedInt(long val)

  Writes an unsigned int (four byte) value to the buffer. Writes values that can be read using `TupleInput.readUnsignedInt()`.

  Parameters:
    `val` - is the value to write to the buffer.
  Returns:
    this tuple output object.
  See Also:
    Integer Formats

### writePackedInt

    public final TupleOutput writePackedInt(int val)

  Writes an unsorted packed integer.

  See Also:
    Integer Formats

### writePackedLong

    public final TupleOutput writePackedLong(long val)

  Writes an unsorted packed long integer.

  See Also:
    Integer Formats

### writeSortedPackedInt

    public final TupleOutput writeSortedPackedInt(int val)

  Writes a sorted packed integer.

  See Also:
    Integer Formats

### writeSortedPackedLong

    public final TupleOutput writeSortedPackedLong(long val)

  Writes a sorted packed long integer.

  See Also:
    Integer Formats

### writeBigInteger

    public final TupleOutput writeBigInteger(BigInteger val)

  Writes a `BigInteger`.

  Throws:
    `NullPointerException` - if val is null.
    `IllegalArgumentException` - if the byte array representation of val is larger than 0x7fff bytes.
  See Also:
    Integer Formats

### getBigIntegerByteLength

    public static int getBigIntegerByteLength(BigInteger val)

  Returns the exact byte length that would would be output for a given `BigInteger` value if `writeBigInteger(java.math.BigInteger)` were called.

  See Also:
    Integer Formats

### writeBigDecimal

    public final TupleOutput writeBigDecimal(BigDecimal val)

  Writes an unsorted `BigDecimal`.

  Throws:
    `NullPointerException` - if val is null.
  See Also:
    BigDecimal Formats

### getBigDecimalMaxByteLength

    public static int getBigDecimalMaxByteLength(BigDecimal val)

  Returns the maximum byte length that would be output for a given `BigDecimal` value if `writeBigDecimal(java.math.BigDecimal)` were called.

  See Also:
    BigDecimal Formats

### writeSortedBigDecimal

    public final TupleOutput writeSortedBigDecimal(BigDecimal val)

  Writes a sorted `BigDecimal`.

  See Also:
    BigDecimal Formats

### getSortedBigDecimalMaxByteLength

    public static int getSortedBigDecimalMaxByteLength(BigDecimal val)

  Returns the maximum byte length that would be output for a given `BigDecimal` value if `writeSortedBigDecimal(java.math.BigDecimal)` were called.

  See Also:
    BigDecimal Formats

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| Berkeley DB version 5.3.21
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