org.eclipse.incquery.runtime.api.scope

Interface IEngineContext

public interface IEngineContext

The context of the engine is instantiated by the scope, and provides information and services regarding the model the towards the engine.

Author:

Bergmann Gabor

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	IEngineContext.IQueryBackendInitializer

Method Summary

Modifier and Type	Method and Description
void	dispose() Disposes this context object.
IBaseIndex	getBaseIndex() Returns the base index.
void	initializeBackends(IEngineContext.IQueryBackendInitializer initializer) Invokes the given initializer code with a runtime context for pattern matching.

Method Detail

getBaseIndex

IBaseIndex getBaseIndex()
                 throws IncQueryException

Returns the base index.

Throws:

IncQueryException

initializeBackends

void initializeBackends(IEngineContext.IQueryBackendInitializer initializer)
                 throws IncQueryException

Invokes the given initializer code with a runtime context for pattern matching. If the base index has not yet been initialized, it will be only loaded with content after the callback.

Throws:

IncQueryException

dispose

void dispose()

Disposes this context object. Resources in the index may now be freed up. No more methods should be called after this one.

Throws:

java.lang.IllegalStateException - if there are any active listeners to the underlying index