co.cask.cdap.common.io

Interface Decoder

All Known Implementing Classes:

JsonDecoder

public interface Decoder

Interface for decoding data.

Method Summary

Modifier and Type	Method and Description
boolean	readBool() Decodes and return a boolean value
ByteBuffer	readBytes() Decodes and return bytes
double	readDouble() Decodes and return a double value
float	readFloat() Decodes and return a float value
int	readInt() Decodes and return a int value
long	readLong() Decodes and return a long value
Object	readNull() Decodes and return a null value.
String	readString() Decodes and return a string value
void	skipBytes() Skips a byte array.
void	skipDouble() Skips a double.
void	skipFloat() Skips a float.
void	skipString() Skips the a string.

Method Detail

readNull

@Nullable
Object readNull()
                   throws IOException

Decodes and return a null value.

Returns:

Always returns null

Throws:

IOException - if failed to decode

readBool

boolean readBool()
          throws IOException

Decodes and return a boolean value

Returns:

the decoded boolean

Throws:

IOException - if failed to decode

readInt

int readInt()
     throws IOException

Decodes and return a int value

Returns:

the decoded int

Throws:

IOException - if failed to decode

readLong

long readLong()
       throws IOException

Decodes and return a long value

Returns:

the decoded long

Throws:

IOException - if failed to decode

readFloat

float readFloat()
         throws IOException

Decodes and return a float value

Returns:

the decoded float

Throws:

IOException - if failed to decode

readDouble

double readDouble()
           throws IOException

Decodes and return a double value

Returns:

the decoded double

Throws:

IOException - if failed to decode

readString

String readString()
           throws IOException

Decodes and return a string value

Returns:

the decoded string

Throws:

IOException - if failed to decode

readBytes

ByteBuffer readBytes()
              throws IOException

Decodes and return bytes

Returns:

the decoded bytes

Throws:

IOException - if failed to decode

skipFloat

void skipFloat()
        throws IOException

Skips a float.

Throws:

IOException - if failed to skip

skipDouble

void skipDouble()
         throws IOException

Skips a double.

Throws:

IOException - if failed to skip

skipString

void skipString()
         throws IOException

Skips the a string.

Throws:

IOException - if failed to skip

skipBytes

void skipBytes()
        throws IOException

Skips a byte array.

Throws:

IOException - if failed to skip