Package org.apache.hadoop.typedbytes

Class TypedBytesOutput

java.lang.Object

org.apache.hadoop.typedbytes.TypedBytesOutput

public class TypedBytesOutput
extends java.lang.Object

Provides functionality for writing typed bytes.

Constructor Summary

Constructors

Constructor	Description
TypedBytesOutput(java.io.DataOutput out)	Creates a new instance of TypedBytesOutput.

Method Summary

Modifier and Type	Method	Description
static TypedBytesOutput	get(java.io.DataOutput out)	Get a thread-local typed bytes output for the supplied DataOutput.
void	write(java.lang.Object obj)	Writes a Java object as a typed bytes sequence.
void	writeBool(boolean b)	Writes a boolean as a typed bytes sequence.
void	writeByte(byte b)	Writes a byte as a typed bytes sequence.
void	writeBytes(byte[] bytes)	Writes a bytes array as a typed bytes sequence.
void	writeBytes(byte[] bytes, int code)	Writes a bytes array as a typed bytes sequence, using a given typecode.
void	writeBytes(byte[] bytes, int code, int length)	Writes a bytes array as a typed bytes sequence, using a given typecode and length.
void	writeBytes(Buffer buffer)	Writes a bytes buffer as a typed bytes sequence.
void	writeDouble(double d)	Writes a double as a typed bytes sequence.
void	writeFloat(float f)	Writes a float as a typed bytes sequence.
void	writeInt(int i)	Writes an integer as a typed bytes sequence.
void	writeList(java.util.List list)	Writes a list as a typed bytes sequence.
void	writeListFooter()	Writes a list footer.
void	writeListHeader()	Writes a list header.
void	writeLong(long l)	Writes a long as a typed bytes sequence.
void	writeMap(java.util.Map map)	Writes a map as a typed bytes sequence.
void	writeMapHeader(int length)	Writes a map header.
void	writeRaw(byte[] bytes)	Writes a raw sequence of typed bytes.
void	writeRaw(byte[] bytes, int offset, int length)	Writes a raw sequence of typed bytes.
void	writeString(java.lang.String s)	Writes a string as a typed bytes sequence.
void	writeVector(java.util.ArrayList vector)	Writes a vector as a typed bytes sequence.
void	writeVectorHeader(int length)	Writes a vector header.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TypedBytesOutput

public TypedBytesOutput(java.io.DataOutput out)

Creates a new instance of TypedBytesOutput.

Method Detail

get

public static TypedBytesOutput get(java.io.DataOutput out)

Get a thread-local typed bytes output for the supplied DataOutput.

Parameters:

out - data output object

Returns:

typed bytes output corresponding to the supplied DataOutput.

write

public void write(java.lang.Object obj)
           throws java.io.IOException

Writes a Java object as a typed bytes sequence.

Parameters:

obj - the object to be written

Throws:

java.io.IOException

writeRaw

public void writeRaw(byte[] bytes)
              throws java.io.IOException

Writes a raw sequence of typed bytes.

Parameters:

bytes - the bytes to be written

Throws:

java.io.IOException

writeRaw

public void writeRaw(byte[] bytes,
                     int offset,
                     int length)
              throws java.io.IOException

Writes a raw sequence of typed bytes.

Parameters:

bytes - the bytes to be written

offset - an offset in the given array

length - number of bytes from the given array to write

Throws:

java.io.IOException

writeBytes

public void writeBytes(byte[] bytes,
                       int code,
                       int length)
                throws java.io.IOException

Writes a bytes array as a typed bytes sequence, using a given typecode and length.

Parameters:

bytes - the bytes array to be written

code - the typecode to use

length - the number of bytes to write, starting from position 0

Throws:

java.io.IOException

writeBytes

public void writeBytes(byte[] bytes,
                       int code)
                throws java.io.IOException

Writes a bytes array as a typed bytes sequence, using a given typecode.

Parameters:

bytes - the bytes array to be written

code - the typecode to use

Throws:

java.io.IOException

writeBytes

public void writeBytes(byte[] bytes)
                throws java.io.IOException

Writes a bytes array as a typed bytes sequence.

Parameters:

bytes - the bytes array to be written

Throws:

java.io.IOException

writeBytes

public void writeBytes(Buffer buffer)
                throws java.io.IOException

Writes a bytes buffer as a typed bytes sequence.

Parameters:

buffer - the bytes buffer to be written

Throws:

java.io.IOException

writeByte

public void writeByte(byte b)
               throws java.io.IOException

Writes a byte as a typed bytes sequence.

Parameters:

b - the byte to be written

Throws:

java.io.IOException

writeBool

public void writeBool(boolean b)
               throws java.io.IOException

Writes a boolean as a typed bytes sequence.

Parameters:

b - the boolean to be written

Throws:

java.io.IOException

writeInt

public void writeInt(int i)
              throws java.io.IOException

Writes an integer as a typed bytes sequence.

Parameters:

i - the integer to be written

Throws:

java.io.IOException

writeLong

public void writeLong(long l)
               throws java.io.IOException

Writes a long as a typed bytes sequence.

Parameters:

l - the long to be written

Throws:

java.io.IOException

writeFloat

public void writeFloat(float f)
                throws java.io.IOException

Writes a float as a typed bytes sequence.

Parameters:

f - the float to be written

Throws:

java.io.IOException

writeDouble

public void writeDouble(double d)
                 throws java.io.IOException

Writes a double as a typed bytes sequence.

Parameters:

d - the double to be written

Throws:

java.io.IOException

writeString

public void writeString(java.lang.String s)
                 throws java.io.IOException

Writes a string as a typed bytes sequence.

Parameters:

s - the string to be written

Throws:

java.io.IOException

writeVector

public void writeVector(java.util.ArrayList vector)
                 throws java.io.IOException

Writes a vector as a typed bytes sequence.

Parameters:

vector - the vector to be written

Throws:

java.io.IOException

writeVectorHeader

public void writeVectorHeader(int length)
                       throws java.io.IOException

Writes a vector header.

Parameters:

length - the number of elements in the vector

Throws:

java.io.IOException

writeList

public void writeList(java.util.List list)
               throws java.io.IOException

Writes a list as a typed bytes sequence.

Parameters:

list - the list to be written

Throws:

java.io.IOException

writeListHeader

public void writeListHeader()
                     throws java.io.IOException

Writes a list header.

Throws:

java.io.IOException

writeListFooter

public void writeListFooter()
                     throws java.io.IOException

Writes a list footer.

Throws:

java.io.IOException

writeMap

public void writeMap(java.util.Map map)
              throws java.io.IOException

Writes a map as a typed bytes sequence.

Parameters:

map - the map to be written

Throws:

java.io.IOException

writeMapHeader

public void writeMapHeader(int length)
                    throws java.io.IOException

Writes a map header.

Parameters:

length - the number of key-value pairs in the map

Throws:

java.io.IOException