com.sleepycat.bind.tuple

Class SortedPackedLongBinding

java.lang.Object

com.sleepycat.bind.tuple.TupleBase<E>

com.sleepycat.bind.tuple.TupleBinding<java.lang.Long>

com.sleepycat.bind.tuple.SortedPackedLongBinding

All Implemented Interfaces:

EntryBinding<java.lang.Long>

public class SortedPackedLongBinding
extends TupleBinding<java.lang.Long>

A concrete TupleBinding for a sorted Long primitive wrapper or a sorted long primitive, that stores the value in the smallest number of bytes possible.

There are two ways to use this class:

1. When using the com.sleepycat.db package directly, the static methods in this class can be used to convert between primitive values and DatabaseEntry objects.
2. When using the com.sleepycat.collections package, an instance of this class can be used with any stored collection.

See Also:

Integer Formats

Constructor Summary

Constructors

Constructor and Description
SortedPackedLongBinding()

Method Summary

Modifier and Type	Method and Description
static java.lang.Long	entryToLong(DatabaseEntry entry) Converts an entry buffer into a simple Long value.
java.lang.Long	entryToObject(TupleInput input) Constructs a key or data object from a TupleInput entry.
static void	longToEntry(long val, DatabaseEntry entry) Converts a simple Long value into an entry buffer, using SortedPackedLong format.
void	objectToEntry(java.lang.Long object, TupleOutput output) Converts a key or data object to a tuple entry.

Methods inherited from class com.sleepycat.bind.tuple.TupleBinding

entryToObject, getPrimitiveBinding, objectToEntry

Methods inherited from class com.sleepycat.bind.tuple.TupleBase

entryToInput, getTupleBufferSize, inputToEntry, newOutput, newOutput, outputToEntry, setTupleBufferSize

Methods inherited from class java.lang.Object

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

Constructor Detail

SortedPackedLongBinding

public SortedPackedLongBinding()

Method Detail

entryToObject

public java.lang.Long entryToObject(TupleInput input)

Description copied from class: TupleBinding

Constructs a key or data object from a TupleInput entry.

Specified by:

entryToObject in class TupleBinding<java.lang.Long>

Parameters:

input - is the tuple key or data entry.

Returns:

the key or data object constructed from the entry.

objectToEntry

public void objectToEntry(java.lang.Long object,
                          TupleOutput output)

Description copied from class: TupleBinding

Converts a key or data object to a tuple entry.

Specified by:

objectToEntry in class TupleBinding<java.lang.Long>

Parameters:

object - is the key or data object.

output - is the tuple entry to which the key or data should be written.

entryToLong

public static java.lang.Long entryToLong(DatabaseEntry entry)

Converts an entry buffer into a simple Long value.

Parameters:

entry - is the source entry buffer.

Returns:

the resulting value.

longToEntry

public static void longToEntry(long val,
                               DatabaseEntry entry)

Converts a simple Long value into an entry buffer, using SortedPackedLong format.

Parameters:

val - is the source value.

entry - is the destination entry buffer.