-DoubleBinding (Oracle - Berkeley DB Java API) -

java.lang.Object
+
- com.sleepycat.bind.tuple.TupleBase<E>
- +
  - com.sleepycat.bind.tuple.TupleBinding<java.lang.Double>
  - +
    - com.sleepycat.bind.tuple.DoubleBinding
    +
  +
+

+
+
All Implemented Interfaces:
+
EntryBinding<java.lang.Double>
+
+
+
+
```
public class DoubleBinding
+extends TupleBinding<java.lang.Double>
```
+
A concrete TupleBinding for an unsorted Double primitive wrapper or an unsorted double primitive.
There are two ways to use this class:
1. When using the com.sleepycat.db package directly, the static +
2. 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.
3. When using the com.sleepycat.collections package, an instance of + DatabaseEntry objects.
4. 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.
-
- -
-
-
See Also:
Floating Point Formats
-
- -
- + obtain a binding instance is with the TupleBinding.getPrimitiveBinding(java.lang.Class<T>) method.

See Also:: Floating Point Formats

+ + +

- - - - - - - - - -

-Constructor Summary
`DoubleBinding()` - - -

- +

+ + +
Constructor Summary
+ + + + + + + + +
Constructors
Constructor and Description
DoubleBinding()
+

Constructors
Constructor and Description
`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.
- `Double`	`entryToObject(TupleInput input)` - - - Constructs a key or data object from a `TupleInput` entry.
-`protected TupleOutput`	`getTupleOutput(Double object)` - - - Returns an empty TupleOutput instance that will be used by the tuple - binding or key creator.
- `void`	`objectToEntry(Double 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`

- -

- +

+ + +

Method Summary

+ + + + + + + + + + + + + + + + + + + + + + + + + + +

Methods
Modifier and Type	Method and Description
`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. +
`java.lang.Double`	`entryToObject(TupleInput input)` + Constructs a key or data object from a `TupleInput` entry. +
`protected TupleOutput`	`getTupleOutput(java.lang.Double object)` + Returns an empty TupleOutput instance that will be used by the tuple + binding or key creator. +
`void`	`objectToEntry(java.lang.Double 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
- -
-DoubleBinding
-
```
-public DoubleBinding()
```
-
-
- +
- + + +
  Constructor Detail
  + + + +
  - +
    DoubleBinding
    +
```
public DoubleBinding()
```
    +
  +
- - - - - - -
-Method Detail
- -
-entryToObject
-
```
-public Double entryToObject(TupleInput input)
```
-
-
Description copied from class: TupleBinding
-
Constructs a key or data object from a TupleInput entry. -
-
-
Specified by:
entryToObject in class TupleBinding<Double>
-
-
-
Parameters:
input - is the tuple key or data entry. -
Returns:
the key or data object constructed from the entry.
-
-
-
- -
-objectToEntry
-
```
-public void objectToEntry(Double object,
-                          TupleOutput output)
```
-
-
Description copied from class: TupleBinding
-
Converts a key or data object to a tuple entry. -
-
-
Specified by:
objectToEntry in class TupleBinding<Double>
-
-
-
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(Double object)
```
-
-
Description copied from class: TupleBase
-
Returns an empty TupleOutput instance that will be used by the tuple +
- + + +
  Method Detail
  + + + +
  - +
    entryToObject
    +
    public java.lang.Double 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.Double>
    +
    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.Double 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.Double>
    +
    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(java.lang.Double 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.
    + 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<Double>
    -
    -
    -
    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)
    -
    -
-
- -
-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.
-
-
+ FastOutputStream.reset() method before each + use.

- -com.sleepycat.bind.tuple -
-Class DoubleBinding

Class DoubleBinding

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

-DoubleBinding

Constructor Detail

DoubleBinding

-entryToObject

-objectToEntry

-getTupleOutput

Method Detail

entryToObject

objectToEntry

getTupleOutput

-entryToDouble

-doubleToEntry

entryToDouble

doubleToEntry

- -com.sleepycat.bind.tuple - -Class DoubleBinding

Class DoubleBinding

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

-DoubleBinding

Constructor Detail

DoubleBinding

-entryToObject

-objectToEntry

-getTupleOutput

Method Detail

entryToObject

objectToEntry

getTupleOutput

-entryToDouble

-doubleToEntry

entryToDouble

doubleToEntry

- -com.sleepycat.bind.tuple -
-Class DoubleBinding