org.apache.hadoop.typedbytes

类 TypedBytesOutput

java.lang.Object

org.apache.hadoop.typedbytes.TypedBytesOutput

public class TypedBytesOutput
extends Object

Provides functionality for writing typed bytes.

构造器概要

构造器

构造器和说明
TypedBytesOutput(DataOutput out) Creates a new instance of TypedBytesOutput.

方法概要

方法

限定符和类型	方法和说明
static TypedBytesOutput	get(DataOutput out) Get a thread-local typed bytes output for the supplied DataOutput.
void	write(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	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(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(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(String s) Writes a string as a typed bytes sequence.
void	writeVector(ArrayList vector) Writes a vector as a typed bytes sequence.
void	writeVectorHeader(int length) Writes a vector header.

从类继承的方法 java.lang.Object

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

构造器详细资料

TypedBytesOutput

public TypedBytesOutput(DataOutput out)

Creates a new instance of TypedBytesOutput.

方法详细资料

get

public static TypedBytesOutput get(DataOutput out)

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

参数:

out - data output object

返回:

typed bytes output corresponding to the supplied DataOutput.

write

public void write(Object obj)
           throws IOException

Writes a Java object as a typed bytes sequence.

参数:

obj - the object to be written

抛出:

IOException

writeRaw

public void writeRaw(byte[] bytes)
              throws IOException

Writes a raw sequence of typed bytes.

参数:

bytes - the bytes to be written

抛出:

IOException

writeRaw

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

Writes a raw sequence of typed bytes.

参数:

bytes - the bytes to be written

offset - an offset in the given array

length - number of bytes from the given array to write

抛出:

IOException

writeBytes

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

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

参数:

bytes - the bytes array to be written

code - the typecode to use

抛出:

IOException

writeBytes

public void writeBytes(byte[] bytes)
                throws IOException

Writes a bytes array as a typed bytes sequence.

参数:

bytes - the bytes array to be written

抛出:

IOException

writeByte

public void writeByte(byte b)
               throws IOException

Writes a byte as a typed bytes sequence.

参数:

b - the byte to be written

抛出:

IOException

writeBool

public void writeBool(boolean b)
               throws IOException

Writes a boolean as a typed bytes sequence.

参数:

b - the boolean to be written

抛出:

IOException

writeInt

public void writeInt(int i)
              throws IOException

Writes an integer as a typed bytes sequence.

参数:

i - the integer to be written

抛出:

IOException

writeLong

public void writeLong(long l)
               throws IOException

Writes a long as a typed bytes sequence.

参数:

l - the long to be written

抛出:

IOException

writeFloat

public void writeFloat(float f)
                throws IOException

Writes a float as a typed bytes sequence.

参数:

f - the float to be written

抛出:

IOException

writeDouble

public void writeDouble(double d)
                 throws IOException

Writes a double as a typed bytes sequence.

参数:

d - the double to be written

抛出:

IOException

writeString

public void writeString(String s)
                 throws IOException

Writes a string as a typed bytes sequence.

参数:

s - the string to be written

抛出:

IOException

writeVector

public void writeVector(ArrayList vector)
                 throws IOException

Writes a vector as a typed bytes sequence.

参数:

vector - the vector to be written

抛出:

IOException

writeVectorHeader

public void writeVectorHeader(int length)
                       throws IOException

Writes a vector header.

参数:

length - the number of elements in the vector

抛出:

IOException

writeList

public void writeList(List list)
               throws IOException

Writes a list as a typed bytes sequence.

参数:

list - the list to be written

抛出:

IOException

writeListHeader

public void writeListHeader()
                     throws IOException

Writes a list header.

抛出:

IOException

writeListFooter

public void writeListFooter()
                     throws IOException

Writes a list footer.

抛出:

IOException

writeMap

public void writeMap(Map map)
              throws IOException

Writes a map as a typed bytes sequence.

参数:

map - the map to be written

抛出:

IOException

writeMapHeader

public void writeMapHeader(int length)
                    throws IOException

Writes a map header.

参数:

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

抛出:

IOException