OCLQueryHandler (CDO Model Repository Documentation)

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org.eclipse.emf.cdo.server.ocl
Class OCLQueryHandler

java.lang.Object
  org.eclipse.emf.cdo.server.ocl.OCLQueryHandler

All Implemented Interfaces:: IQueryHandler

public class OCLQueryHandler: extends Object; implements IQueryHandler

A query handler that evaluates OCL query expressions.

Nested Class Summary
`static class`	`OCLQueryHandler.Factory` Creates `OCLQueryHandler` instances.

Field Summary
`static String`	`LANGUAGE_NAME`

Constructor Summary
`OCLQueryHandler()`

Method Summary
`protected void`	`addEnvironmentVariable(org.eclipse.ocl.Environment<?,EClassifier,?,?,?,?,?,?,?,org.eclipse.ocl.ecore.Constraint,EClass,EObject> environment, org.eclipse.ocl.expressions.Variable<EClassifier,?> variable)`
`protected boolean`	`addResult(Object result, IQueryContext context, CDOView view)`
`protected CDOExtentMap`	`createExtentMap(CDOView view, CDOChangeSetData changeSetData, IQueryContext context)`
`protected org.eclipse.ocl.expressions.OCLExpression<EClassifier>`	`createInitExpression(org.eclipse.ocl.types.OCLStandardLibrary<EClassifier> stdLib, CDOPackageRegistry packageRegistry, Object value)`
`protected boolean`	`createsLazyExtents()`
`protected Object`	`evaluate(org.eclipse.ocl.Query<EClassifier,EClass,EObject> query, EObject object)`
`void`	`executeQuery(CDOQueryInfo info, IQueryContext context)` Executes the `query` represented by the specified `query info` by `passing` the query results to the query execution engine represented by the specified `execution context`.
`protected EClassifier`	`getArbitraryContextClassifier(CDOPackageRegistry packageRegistry)`
`protected CDORevision`	`getRevision(EObject object, CDOView view)`
`protected void`	`initEnvironment(org.eclipse.ocl.Environment<?,EClassifier,?,?,?,?,?,?,?,org.eclipse.ocl.ecore.Constraint,EClass,EObject> environment, CDOPackageRegistry packageRegistry, Map<String,Object> parameters)`
`static void`	`prepareContainer(IManagedContainer container)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

LANGUAGE_NAME

public static final String LANGUAGE_NAME

See Also:: Constant Field Values

Constructor Detail

OCLQueryHandler

public OCLQueryHandler()

Method Detail

executeQuery

public void executeQuery(CDOQueryInfo info,
                         IQueryContext context)

Description copied from interface: IQueryHandler

Executes the query represented by the specified query info by passing the query results to the query execution engine represented by the specified execution context.

Specified by:: executeQuery in interface IQueryHandler

addResult

protected boolean addResult(Object result,
                            IQueryContext context,
                            CDOView view)

getRevision

protected CDORevision getRevision(EObject object,
                                  CDOView view)

evaluate

protected Object evaluate(org.eclipse.ocl.Query<EClassifier,EClass,EObject> query,
                          EObject object)

createExtentMap

protected CDOExtentMap createExtentMap(CDOView view,
                                       CDOChangeSetData changeSetData,
                                       IQueryContext context)

createsLazyExtents

protected boolean createsLazyExtents()

getArbitraryContextClassifier

protected EClassifier getArbitraryContextClassifier(CDOPackageRegistry packageRegistry)

initEnvironment

protected void initEnvironment(org.eclipse.ocl.Environment<?,EClassifier,?,?,?,?,?,?,?,org.eclipse.ocl.ecore.Constraint,EClass,EObject> environment,
                               CDOPackageRegistry packageRegistry,
                               Map<String,Object> parameters)

createInitExpression

protected org.eclipse.ocl.expressions.OCLExpression<EClassifier> createInitExpression(org.eclipse.ocl.types.OCLStandardLibrary<EClassifier> stdLib,
                                                                                      CDOPackageRegistry packageRegistry,
                                                                                      Object value)

addEnvironmentVariable

protected void addEnvironmentVariable(org.eclipse.ocl.Environment<?,EClassifier,?,?,?,?,?,?,?,org.eclipse.ocl.ecore.Constraint,EClass,EObject> environment,
                                      org.eclipse.ocl.expressions.Variable<EClassifier,?> variable)

prepareContainer

public static void prepareContainer(IManagedContainer container)