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java.lang.Objectcom.sleepycat.bind.tuple.TupleBase<E>
com.sleepycat.bind.tuple.TupleTupleBinding<E>
public abstract class TupleTupleBinding<E>
An abstract EntityBinding
that treats an entity's key entry and
data entry as tuples.
This class takes care of converting the entries to/from TupleInput
and TupleOutput
objects. Its three abstract methods
must be implemented by a concrete subclass to convert between tuples and
entity objects.
entryToObject(TupleInput,TupleInput)
objectToKey(Object,TupleOutput)
objectToData(Object,TupleOutput)
Constructor Summary | |
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TupleTupleBinding()
Creates a tuple-tuple entity binding. |
Method Summary | |
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E |
entryToObject(DatabaseEntry key,
DatabaseEntry data)
Converts key and data entry buffers into an entity Object. |
abstract E |
entryToObject(TupleInput keyInput,
TupleInput dataInput)
Constructs an entity object from TupleInput key and data
entries. |
void |
objectToData(E object,
DatabaseEntry data)
Extracts the data entry from an entity Object. |
abstract void |
objectToData(E object,
TupleOutput output)
Extracts a key tuple from an entity object. |
void |
objectToKey(E object,
DatabaseEntry key)
Extracts the key entry from an entity Object. |
abstract void |
objectToKey(E object,
TupleOutput output)
Extracts a key tuple from an entity object. |
Methods inherited from class com.sleepycat.bind.tuple.TupleBase |
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entryToInput, getTupleBufferSize, getTupleOutput, inputToEntry, newOutput, newOutput, outputToEntry, setTupleBufferSize |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public TupleTupleBinding()
Method Detail |
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public E entryToObject(DatabaseEntry key, DatabaseEntry data)
EntityBinding
entryToObject
in interface EntityBinding<E>
key
- is the source key entry.data
- is the source data entry.
public void objectToKey(E object, DatabaseEntry key)
EntityBinding
objectToKey
in interface EntityBinding<E>
object
- is the source Object.key
- is the destination entry buffer.public void objectToData(E object, DatabaseEntry data)
EntityBinding
objectToData
in interface EntityBinding<E>
object
- is the source Object.data
- is the destination entry buffer.public abstract E entryToObject(TupleInput keyInput, TupleInput dataInput)
TupleInput
key and data
entries.
keyInput
- is the TupleInput
key entry object.dataInput
- is the TupleInput
data entry object.
public abstract void objectToKey(E object, TupleOutput output)
object
- is the entity object.output
- is the TupleOutput
to which the key should be
written.public abstract void objectToData(E object, TupleOutput output)
object
- is the entity object.output
- is the TupleOutput
to which the data should be
written.
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