Berkeley DB
version 5.2.28

com.sleepycat.bind.tuple
Class SortedFloatBinding

java.lang.Object
  extended by com.sleepycat.bind.tuple.TupleBase<E>
      extended by com.sleepycat.bind.tuple.TupleBinding<Float>
          extended by com.sleepycat.bind.tuple.SortedFloatBinding
All Implemented Interfaces:
EntryBinding<Float>

public class SortedFloatBinding
extends TupleBinding<Float>

A concrete TupleBinding for a sorted Float primitive wrapper or sorted a float primitive.

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:
Floating Point Formats

Constructor Summary
SortedFloatBinding()
           
 
Method Summary
static float entryToFloat(DatabaseEntry entry)
          Converts an entry buffer into a simple float value.
 Float entryToObject(TupleInput input)
          Constructs a key or data object from a TupleInput entry.
static void floatToEntry(float val, DatabaseEntry entry)
          Converts a simple float value into an entry buffer.
protected  TupleOutput getTupleOutput(Float object)
          Returns an empty TupleOutput instance that will be used by the tuple binding or key creator.
 void objectToEntry(Float 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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SortedFloatBinding

public SortedFloatBinding()
Method Detail

entryToObject

public Float entryToObject(TupleInput input)
Description copied from class: TupleBinding
Constructs a key or data object from a TupleInput entry.

Specified by:
entryToObject in class TupleBinding<Float>
Parameters:
input - is the tuple key or data entry.
Returns:
the key or data object constructed from the entry.

objectToEntry

public void objectToEntry(Float object,
                          TupleOutput output)
Description copied from class: TupleBinding
Converts a key or data object to a tuple entry.

Specified by:
objectToEntry in class TupleBinding<Float>
Parameters:
object - is the key or data object.
output - is the tuple entry to which the key or data should be written.

getTupleOutput

protected TupleOutput getTupleOutput(Float object)
Description copied from class: TupleBase
Returns an empty TupleOutput instance that will be used by the tuple binding or key creator.

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.

Overrides:
getTupleOutput in class TupleBase<Float>
Parameters:
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.
Returns:
an empty TupleOutput instance.
See Also:
TupleBase.setTupleBufferSize(int)

entryToFloat

public static float entryToFloat(DatabaseEntry entry)
Converts an entry buffer into a simple float value.

Parameters:
entry - is the source entry buffer.
Returns:
the resulting value.

floatToEntry

public static void floatToEntry(float val,
                                DatabaseEntry entry)
Converts a simple float value into an entry buffer.

Parameters:
val - is the source value.
entry - is the destination entry buffer.

Berkeley DB
version 5.2.28

Copyright (c) 1996, 2011 Oracle and/or its affiliates. All rights reserved.