Class DataContextFactory

java.lang.Object

org.apache.cayenne.access.DataContextFactory

All Implemented Interfaces:

ObjectContextFactory

public class DataContextFactory
extends Object
implements ObjectContextFactory

Since:

3.1

Field Summary

Fields

Modifier and Type	Field	Description
protected DataRowStoreFactory	dataRowStoreFactory
protected QueryCache	queryCache
protected RuntimeProperties	runtimeProperties

Constructor Summary

Constructors

Constructor	Description
DataContextFactory()

Method Summary

Modifier and Type	Method	Description
ObjectContext	createContext(DataChannel parent)	Creates an ObjectContext attached to a provided channel
ObjectContext	createContext(ObjectContext parent)	Creates an ObjectContext nested in the provided parent context.
protected Map<ObjectId, Persistent>	createObjectMap()	Creates a map of registered objects for a new ObjectStore, holding the objects with the kind of references selected by RuntimeProperties.OBJECT_RETAIN_STRATEGY_PROPERTY: weak (the default), soft or hard.
protected DataContext.Builder	newBuilder(DataChannel parent)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

dataRowStoreFactory

protected DataRowStoreFactory dataRowStoreFactory

runtimeProperties

protected RuntimeProperties runtimeProperties

queryCache

protected QueryCache queryCache

Constructor Details

DataContextFactory

public DataContextFactory()

Method Details

createContext

public ObjectContext createContext(DataChannel parent)

Description copied from interface: ObjectContextFactory

Creates an ObjectContext attached to a provided channel

Specified by:

createContext in interface ObjectContextFactory

createContext

public ObjectContext createContext(ObjectContext parent)

Description copied from interface: ObjectContextFactory

Creates an ObjectContext nested in the provided parent context. The nested context selects and commits its objects via the parent.

Specified by:

createContext in interface ObjectContextFactory

newBuilder

protected DataContext.Builder newBuilder(DataChannel parent)

createObjectMap

protected Map<ObjectId, Persistent> createObjectMap()

Creates a map of registered objects for a new ObjectStore, holding the objects with the kind of references selected by RuntimeProperties.OBJECT_RETAIN_STRATEGY_PROPERTY: weak (the default), soft or hard. The store is accessed concurrently, so the map must be thread-safe, with an atomic Map.computeIfAbsent(Object, java.util.function.Function) that lets the store register an object under an id exactly once.