org.eclipse.incquery.runtime.emf

Class DynamicEMFQueryRuntimeContext

java.lang.Object

org.eclipse.incquery.runtime.emf.EMFQueryRuntimeContext

org.eclipse.incquery.runtime.emf.DynamicEMFQueryRuntimeContext

All Implemented Interfaces:

IQueryRuntimeContext

public class DynamicEMFQueryRuntimeContext
extends EMFQueryRuntimeContext

In dynamic EMF mode, we need to make sure that EEnum literal constants and values returned by eval() expressions are canonicalized in the same way as enum literals from the EMF model.

This canonicalization is a one-way mapping, so EMFQueryRuntimeContext.unwrapElement(Object) and #unwrapTuple(Object) remain NOPs.

Author:

Bergmann Gabor

Constructor Summary

Constructors

Constructor and Description
DynamicEMFQueryRuntimeContext(NavigationHelper baseIndex, org.apache.log4j.Logger logger, EMFScope emfScope)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	wrapElement(java.lang.Object externalElement) Wraps the external element into the internal representation that is to be used by the query backend
Tuple	wrapTuple(Tuple externalElements) Unwraps the tuple of elements into the internal representation that is to be used by the query backend

Methods inherited from class org.eclipse.incquery.runtime.emf.EMFQueryRuntimeContext

addUpdateListener, coalesceTraversals, containsTuple, countTuples, dispose, ensureEnumerableKey, ensureIndexed, ensureIndexed, ensureIndexed, ensureIndexed, ensureValidKey, enumerateTuples, enumerateValues, getEmfScope, getMetaContext, illegalEnumerateValues, illegalInputKey, isCoalescing, isIndexed, removeUpdateListener, unwrapElement, unwrapTuple

Methods inherited from class java.lang.Object

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

Constructor Detail

DynamicEMFQueryRuntimeContext

public DynamicEMFQueryRuntimeContext(NavigationHelper baseIndex,
                                     org.apache.log4j.Logger logger,
                                     EMFScope emfScope)

Method Detail

wrapElement

public java.lang.Object wrapElement(java.lang.Object externalElement)

Description copied from interface: IQueryRuntimeContext

Wraps the external element into the internal representation that is to be used by the query backend

model element -> internal object.

null must be mapped to null.

Specified by:

wrapElement in interface IQueryRuntimeContext

Overrides:

wrapElement in class EMFQueryRuntimeContext

wrapTuple

public Tuple wrapTuple(Tuple externalElements)

Description copied from interface: IQueryRuntimeContext

Unwraps the tuple of elements into the internal representation that is to be used by the query backend

model elements -> internal objects

null must be mapped to null.

Specified by:

wrapTuple in interface IQueryRuntimeContext

Overrides:

wrapTuple in class EMFQueryRuntimeContext