com.sleepycat.bind.tuple
Class DoubleBinding

java.lang.Object
  |
  +--com.sleepycat.bind.tuple.TupleBinding
        |
        +--com.sleepycat.bind.tuple.DoubleBinding

All Implemented Interfaces:

EntryBinding

public class DoubleBinding

extends TupleBinding

A concrete TupleBinding for a Double primitive wrapper or a double primitive.

There are two ways to use this class:

1. When using the com.sleepycat.je 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. The easiest way to obtain a binding instance is with the TupleBinding.getPrimitiveBinding(java.lang.Class) method.

Constructor Summary

DoubleBinding()

Method Summary

static void	doubleToEntry(double val, DatabaseEntry entry) Converts a simple double value into an entry buffer.
static double	entryToDouble(DatabaseEntry entry) Converts an entry buffer into a simple double value.
Object	entryToObject(TupleInput input) Constructs a key or data object from a TupleInput entry.
void	objectToEntry(Object object, TupleOutput output) Converts a key or data object to a tuple entry.

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

entryToInput, entryToObject, getPrimitiveBinding, inputToEntry, newOutput, newOutput, objectToEntry, outputToEntry

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleBinding

public DoubleBinding()

Method Detail

entryToObject

public Object entryToObject(TupleInput input)

Description copied from class: TupleBinding

Constructs a key or data object from a TupleInput entry.

Specified by:

entryToObject in class TupleBinding

Parameters:

input - is the tuple key or data entry.

Returns:

the key or data object constructed from the entry.

objectToEntry

public void objectToEntry(Object object,
                          TupleOutput output)

Description copied from class: TupleBinding

Converts a key or data object to a tuple entry.

Specified by:

objectToEntry in class TupleBinding

Parameters:

object - is the key or data object.

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

entryToDouble

public static double entryToDouble(DatabaseEntry entry)

Converts an entry buffer into a simple double value.

Parameters:

entry - is the source entry buffer.

Returns:

the resulting value.

doubleToEntry

public static void doubleToEntry(double val,
                                 DatabaseEntry entry)

Converts a simple double value into an entry buffer.

Parameters:

val - is the source value.

entry - is the destination entry buffer.