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java.lang.Objectcom.sleepycat.bind.tuple.TupleBase<E>
com.sleepycat.bind.tuple.TupleBinding<Long>
com.sleepycat.bind.tuple.LongBinding
public class LongBinding
A concrete TupleBinding
for a Long
primitive
wrapper or a long
primitive.
There are two ways to use this class:
com.sleepycat.db
package directly, the static
methods in this class can be used to convert between primitive values and
DatabaseEntry
objects.com.sleepycat.collections
package, an instance of
this class can be used with any stored collection. The easiest way to
obtain a binding instance is with the TupleBinding.getPrimitiveBinding(java.lang.Class)
method.
Constructor Summary | |
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LongBinding()
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Method Summary | |
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static long |
entryToLong(DatabaseEntry entry)
Converts an entry buffer into a simple long value. |
Long |
entryToObject(TupleInput input)
Constructs a key or data object from a TupleInput entry. |
protected TupleOutput |
getTupleOutput(Long object)
Returns an empty TupleOutput instance that will be used by the tuple binding or key creator. |
static void |
longToEntry(long val,
DatabaseEntry entry)
Converts a simple long value into an entry buffer. |
void |
objectToEntry(Long object,
TupleOutput output)
Converts a key or data object to a tuple entry. |
Methods inherited from class com.sleepycat.bind.tuple.TupleBinding |
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entryToObject, getPrimitiveBinding, objectToEntry |
Methods inherited from class com.sleepycat.bind.tuple.TupleBase |
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entryToInput, getTupleBufferSize, 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 LongBinding()
Method Detail |
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public Long entryToObject(TupleInput input)
TupleBinding
TupleInput
entry.
entryToObject
in class TupleBinding<Long>
input
- is the tuple key or data entry.
public void objectToEntry(Long object, TupleOutput output)
TupleBinding
objectToEntry
in class TupleBinding<Long>
object
- is the key or data object.output
- is the tuple entry to which the key or data should be
written.protected TupleOutput getTupleOutput(Long object)
TupleBase
The default implementation of this method creates a new TupleOutput
with an initial buffer size that can be changed using the TupleBase.setTupleBufferSize(int)
method.
This method may be overridden to return a TupleOutput instance. For
example, an instance per thread could be created and returned by this
method. If a TupleOutput instance is reused, be sure to call its
FastOutputStream.reset()
method before each
use.
getTupleOutput
in class TupleBase<Long>
object
- is the object to be written to the tuple output, and may
be used by subclasses to determine the size of the output buffer.
TupleBase.setTupleBufferSize(int)
public static long entryToLong(DatabaseEntry entry)
long
value.
entry
- is the source entry buffer.
public static void longToEntry(long val, DatabaseEntry entry)
long
value into an entry buffer.
val
- is the source value.entry
- is the destination entry buffer.
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