co.cask.cdap.format.io

Class JsonDecoder

java.lang.Object

co.cask.cdap.format.io.JsonDecoder

All Implemented Interfaces:

Decoder

public class JsonDecoder
extends Object
implements Decoder

A Decoder that decodes from json using JsonReader.

Constructor Summary

Constructors

Constructor and Description
JsonDecoder(com.google.gson.stream.JsonReader jsonReader)

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.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonDecoder

public JsonDecoder(com.google.gson.stream.JsonReader jsonReader)

Method Detail

readNull

public Object readNull()
                throws IOException

Description copied from interface: Decoder

Decodes and return a null value.

Specified by:

readNull in interface Decoder

Returns:

Always returns null

Throws:

IOException - if failed to decode

readBool

public boolean readBool()
                 throws IOException

Description copied from interface: Decoder

Decodes and return a boolean value

Specified by:

readBool in interface Decoder

Returns:

the decoded boolean

Throws:

IOException - if failed to decode

readInt

public int readInt()
            throws IOException

Description copied from interface: Decoder

Decodes and return a int value

Specified by:

readInt in interface Decoder

Returns:

the decoded int

Throws:

IOException - if failed to decode

readLong

public long readLong()
              throws IOException

Description copied from interface: Decoder

Decodes and return a long value

Specified by:

readLong in interface Decoder

Returns:

the decoded long

Throws:

IOException - if failed to decode

readFloat

public float readFloat()
                throws IOException

Description copied from interface: Decoder

Decodes and return a float value

Specified by:

readFloat in interface Decoder

Returns:

the decoded float

Throws:

IOException - if failed to decode

readDouble

public double readDouble()
                  throws IOException

Description copied from interface: Decoder

Decodes and return a double value

Specified by:

readDouble in interface Decoder

Returns:

the decoded double

Throws:

IOException - if failed to decode

readString

public String readString()
                  throws IOException

Description copied from interface: Decoder

Decodes and return a string value

Specified by:

readString in interface Decoder

Returns:

the decoded string

Throws:

IOException - if failed to decode

readBytes

public ByteBuffer readBytes()
                     throws IOException

Description copied from interface: Decoder

Decodes and return bytes

Specified by:

readBytes in interface Decoder

Returns:

the decoded bytes

Throws:

IOException - if failed to decode

skipFloat

public void skipFloat()
               throws IOException

Description copied from interface: Decoder

Skips a float.

Specified by:

skipFloat in interface Decoder

Throws:

IOException - if failed to skip

skipDouble

public void skipDouble()
                throws IOException

Description copied from interface: Decoder

Skips a double.

Specified by:

skipDouble in interface Decoder

Throws:

IOException - if failed to skip

skipString

public void skipString()
                throws IOException

Description copied from interface: Decoder

Skips the a string.

Specified by:

skipString in interface Decoder

Throws:

IOException - if failed to skip

skipBytes

public void skipBytes()
               throws IOException

Description copied from interface: Decoder

Skips a byte array.

Specified by:

skipBytes in interface Decoder

Throws:

IOException - if failed to skip