com::sleepycat::bind::tuple::TupleBinding Class Reference

Inheritance diagram for com::sleepycat::bind::tuple::TupleBinding:

Public Member Functions
	TupleBinding ()
Object	entryToObject (DatabaseEntry entry)
void	objectToEntry (Object object, DatabaseEntry entry)
abstract Object	entryToObject (TupleInput input)
abstract void	objectToEntry (Object object, TupleOutput output)
Static Public Member Functions
static TupleBinding	getPrimitiveBinding (Class cls)

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Detailed Description

An abstract EntryBinding that treats a key or data entry as a tuple; it includes predefined bindings for Java primitive types.

This class takes care of converting the entries to/from TupleInput and TupleOutput objects. Its two abstract methods must be implemented by a concrete subclass to convert between tuples and key or data objects.

• entryToObject(TupleInput)
• objectToEntry(Object,TupleOutput)

For key or data entries which are Java primitive classes (String, Integer, etc) getPrimitiveBinding may be used to return a builtin tuple binding. A custom tuple binding for these types is not needed.

Author:

Mark Hayes

Definition at line 37 of file TupleBinding.java.

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Constructor & Destructor Documentation

com::sleepycat::bind::tuple::TupleBinding::TupleBinding (   )  [inline]

Creates a tuple binding. Definition at line 61 of file TupleBinding.java.

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Member Function Documentation

abstract Object com::sleepycat::bind::tuple::TupleBinding::entryToObject (  TupleInput  input  )  [pure virtual]

Constructs a key or data object from a TupleInput entry. Parameters: input  is the tuple key or data entry. Returns: the key or data object constructed from the entry. Implemented in com::sleepycat::bind::tuple::BooleanBinding, com::sleepycat::bind::tuple::ByteBinding, com::sleepycat::bind::tuple::CharacterBinding, com::sleepycat::bind::tuple::DoubleBinding, com::sleepycat::bind::tuple::FloatBinding, com::sleepycat::bind::tuple::IntegerBinding, com::sleepycat::bind::tuple::LongBinding, com::sleepycat::bind::tuple::ShortBinding, com::sleepycat::bind::tuple::StringBinding, and com::sleepycat::bind::tuple::TupleMarshalledBinding.

Object com::sleepycat::bind::tuple::TupleBinding::entryToObject (  DatabaseEntry  entry  )  [inline]

Converts a entry buffer into an Object. Parameters: entry  is the source entry buffer. Returns: the resulting Object. Implements com::sleepycat::bind::EntryBinding. Definition at line 65 of file TupleBinding.java. References com::sleepycat::bind::tuple::TupleBase::entryToInput().

static TupleBinding com::sleepycat::bind::tuple::TupleBinding::getPrimitiveBinding (  Class  cls  )  [inline, static]

Creates a tuple binding for a primitive Java class. The following Java classes are supported. String Character Boolean Byte Short Integer Long Float Double Parameters: cls  is the primitive Java class. Returns: a new binding for the primitive class or null if the cls parameter is not one of the supported classes. Definition at line 117 of file TupleBinding.java.

abstract void com::sleepycat::bind::tuple::TupleBinding::objectToEntry (  Object  object, TupleOutput  output )  [pure virtual]

Converts a key or data object to a tuple entry. Parameters: object  is the key or data object. output  is the tuple entry to which the key or data should be written. Implemented in com::sleepycat::bind::tuple::BooleanBinding, com::sleepycat::bind::tuple::ByteBinding, com::sleepycat::bind::tuple::CharacterBinding, com::sleepycat::bind::tuple::DoubleBinding, com::sleepycat::bind::tuple::FloatBinding, com::sleepycat::bind::tuple::IntegerBinding, com::sleepycat::bind::tuple::LongBinding, com::sleepycat::bind::tuple::ShortBinding, com::sleepycat::bind::tuple::StringBinding, and com::sleepycat::bind::tuple::TupleMarshalledBinding.

void com::sleepycat::bind::tuple::TupleBinding::objectToEntry (  Object  object, DatabaseEntry  entry )  [inline]

Converts an Object into a entry buffer. Parameters: object  is the source Object. entry  is the destination entry buffer. Implements com::sleepycat::bind::EntryBinding. Definition at line 71 of file TupleBinding.java. References com::sleepycat::bind::tuple::TupleBase::getTupleOutput(), and com::sleepycat::bind::tuple::TupleBase::outputToEntry().

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The documentation for this class was generated from the following file:

• /home/huihoo/src/db/db-4.4.16/java/src/com/sleepycat/bind/tuple/TupleBinding.java

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