public class TupleMarshalledBinding extends TupleBinding
TupleBinding
that delegates to the
MarshalledTupleEntry
interface of the data or key object.
This class works by calling the methods of the MarshalledTupleEntry
interface, which must be implemented by the key or
data class, to convert between the key or data entry and the object.
Constructor and Description |
---|
TupleMarshalledBinding(java.lang.Class cls)
Creates a tuple marshalled binding object.
|
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
entryToObject(TupleInput input)
Constructs a key or data object from a
TupleInput entry. |
void |
objectToEntry(java.lang.Object object,
TupleOutput output)
Converts a key or data object to a tuple entry.
|
entryToObject, getPrimitiveBinding, objectToEntry
entryToInput, getTupleBufferSize, getTupleOutput, inputToEntry, newOutput, newOutput, outputToEntry, setTupleBufferSize
public TupleMarshalledBinding(java.lang.Class cls)
The given class is used to instantiate key or data objects using
Class.forName(java.lang.String)
, and therefore must be a public class and have a
public no-arguments constructor. It must also implement the MarshalledTupleEntry
interface.
cls
- is the class of the key or data objects.public java.lang.Object entryToObject(TupleInput input)
TupleBinding
TupleInput
entry.entryToObject
in class TupleBinding
input
- is the tuple key or data entry.public void objectToEntry(java.lang.Object object, TupleOutput output)
TupleBinding
objectToEntry
in class TupleBinding
object
- is the key or data object.output
- is the tuple entry to which the key or data should be
written.