C++ API Reference for Oracle® Coherence Community Edition: UpdaterProcessor Class Reference

Detailed Description

UpdaterProcessor

InvocableMap

Author:

tb 2008.04.28

Public Types

typedef spec::Handle

Handle

UpdaterProcessor Handle definition.

typedef spec::View

View

UpdaterProcessor View definition.

typedef spec::Holder

Holder

UpdaterProcessor Holder definition.

Public Member Functions

virtual Object::Holder

process (InvocableMap::Entry::Handle hEntry) const

Process a Map::Entry object.

Parameters:

hEntry

the Entry to process

Returns:: the result of the processing, if any

This implementation throws an UnsupportedOperationException.

Since:: 12.2.1.3

virtual void

readExternal (PofReader::Handle hIn)

virtual void

writeExternal (PofWriter::Handle hOut) const

virtual bool

equals (Object::View v) const

virtual size32_t

hashCode () const

Return a hash code value for the Object.

This method is supported for the benefit of hash-based containers.

The general contract of hashCode is:

Whenever it is invoked on the same Object more than once during an execution of an application, the hashCode method must consistently return the same value, provided no information used in equals comparisons on the object is modified. This value need not remain consistent from one execution of an application to another execution of the same application.
If two Objects are equal according to the equals method, then calling the hashCode method on each of the two Objects must produce the same value.
It is not required that if two Objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct results. However, the programmer should be aware that producing distinct results for unequal objects may improve the performance of hash-based containers.

The default implementation is identity based.

Returns:: a hash code value for this Object

Protected Member Functions

UpdaterProcessor ()

Construct a UpdaterProcessor.

UpdaterProcessor (ValueUpdater::View vUpdater, Object::Holder hValue)

Construct an UpdaterProcessor based on the specified ValueUpdater.

Protected Attributes

FinalView< ValueUpdater >

f_vUpdater

The underlying ValueUpdater.

FinalHolder< Object >

f_hValue

A value to update the entry's value with.

Constructor & Destructor Documentation

UpdaterProcessor	(	ValueUpdater::View	vUpdater,
		Object::Holder	hValue
	)			`[protected]`

Construct an UpdaterProcessor based on the specified ValueUpdater.

Parameters:

	vUpdater	a ValueUpdater object; passing null will simpy replace the entry's value with the specified one instead of updating it
	hValue	the value to update the target entry with