com.facebook.drift.codec.internal.coercion

Class CoercionThriftCodec<T>

java.lang.Object

com.facebook.drift.codec.internal.coercion.CoercionThriftCodec<T>

All Implemented Interfaces:

ThriftCodec<T>

@Immutable
public class CoercionThriftCodec<T>
extends Object
implements ThriftCodec<T>

CoercionThriftCodec encapsulates a ThriftCodec and coerces the values to another type using the supplied ThriftCoercion.

Constructor Summary

Constructors

Constructor and Description
CoercionThriftCodec(ThriftCodec<?> codec, TypeCoercion typeCoercion)

Method Summary

Modifier and Type	Method and Description
ThriftType	getType() The Thrift type this codec supports.
T	read(TProtocolReader protocol) Reads a value from supplied Thrift protocol reader.
void	write(T javaValue, TProtocolWriter protocol) Writes a value to the supplied Thrift protocol writer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.facebook.drift.codec.ThriftCodec

isNull

Constructor Detail

CoercionThriftCodec

public CoercionThriftCodec(ThriftCodec<?> codec,
                           TypeCoercion typeCoercion)

Method Detail

getType

public ThriftType getType()

Description copied from interface: ThriftCodec

The Thrift type this codec supports. The Thrift type contains the Java generic Type of the codec.

Specified by:

getType in interface ThriftCodec<T>

read

public T read(TProtocolReader protocol)
       throws Exception

Description copied from interface: ThriftCodec

Reads a value from supplied Thrift protocol reader.

Specified by:

read in interface ThriftCodec<T>

Parameters:

protocol - the protocol to read from

Returns:

the value; not null

Throws:

Exception - if any problems occurred when reading or coercing the value

write

public void write(T javaValue,
                  TProtocolWriter protocol)
           throws Exception

Description copied from interface: ThriftCodec

Writes a value to the supplied Thrift protocol writer.

Specified by:

write in interface ThriftCodec<T>

Parameters:

javaValue - the value to write; not null

protocol - the protocol to write to

Throws:

Exception - if any problems occurred when writing or coercing the value