Berkeley DB
version 5.3.28

com.sleepycat.bind.tuple
Class BigIntegerBinding

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

public class BigIntegerBinding
extends TupleBinding<BigInteger>

A concrete TupleBinding for a BigInteger value.

This class produces byte array values that by default (without a custom comparator) sort correctly.

See Also:
Integer Formats

Constructor Summary
BigIntegerBinding()
           
 
Method Summary
static void bigIntegerToEntry(BigInteger val, DatabaseEntry entry)
          Converts a BigInteger value into an entry buffer.
static BigInteger entryToBigInteger(DatabaseEntry entry)
          Converts an entry buffer into a BigInteger value.
 BigInteger entryToObject(TupleInput input)
          Constructs a key or data object from a TupleInput entry.
protected  TupleOutput getTupleOutput(BigInteger object)
          Returns an empty TupleOutput instance that will be used by the tuple binding or key creator.
 void objectToEntry(BigInteger 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

BigIntegerBinding

public BigIntegerBinding()
Method Detail

entryToObject

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

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

objectToEntry

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

Specified by:
objectToEntry in class TupleBinding<BigInteger>
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(BigInteger 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<BigInteger>
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)

entryToBigInteger

public static BigInteger entryToBigInteger(DatabaseEntry entry)
Converts an entry buffer into a BigInteger value.

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

bigIntegerToEntry

public static void bigIntegerToEntry(BigInteger val,
                                     DatabaseEntry entry)
Converts a BigInteger value into an entry buffer.

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

Berkeley DB
version 5.3.28

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