org.eclipse.emf.ocl.query.impl
Class QueryImpl

java.lang.Object
  org.eclipse.emf.common.notify.impl.BasicNotifierImpl
      org.eclipse.emf.ecore.impl.BasicEObjectImpl
          org.eclipse.emf.ecore.impl.EObjectImpl
              org.eclipse.emf.ocl.query.impl.QueryImpl

All Implemented Interfaces:

org.eclipse.emf.common.notify.Notifier, org.eclipse.emf.ecore.EObject, org.eclipse.emf.ecore.InternalEObject, Query

public class QueryImpl
extends org.eclipse.emf.ecore.impl.EObjectImpl
implements Query

An implementation of the model object 'Query'.

The following features are implemented:

• Extent Map
• Expression

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.ecore.impl.BasicEObjectImpl

org.eclipse.emf.ecore.impl.BasicEObjectImpl.EPropertiesHolder, org.eclipse.emf.ecore.impl.BasicEObjectImpl.EPropertiesHolderBaseImpl, org.eclipse.emf.ecore.impl.BasicEObjectImpl.EPropertiesHolderImpl

Nested classes/interfaces inherited from class org.eclipse.emf.common.notify.impl.BasicNotifierImpl

org.eclipse.emf.common.notify.impl.BasicNotifierImpl.EAdapterList

Nested classes/interfaces inherited from interface org.eclipse.emf.ecore.InternalEObject

org.eclipse.emf.ecore.InternalEObject.EStore

Field Summary

static java.lang.String	copyright
protected OCLExpression	expression The cached value of the 'Expression' reference
protected static java.util.Map	EXTENT_MAP_EDEFAULT The default value of the 'Extent Map' attribute
protected java.util.Map	extentMap The cached value of the 'Extent Map' attribute

Fields inherited from class org.eclipse.emf.ecore.impl.EObjectImpl

eAdapters, eContainer, eContainerFeatureID, EDELIVER, EDYNAMIC_CLASS, eFlags, ELAST_EOBJECT_FLAG, ELAST_NOTIFIER_FLAG, eProperties, EPROXY

Fields inherited from class org.eclipse.emf.ecore.impl.BasicEObjectImpl

EVIRTUAL_GET, EVIRTUAL_IS_SET, EVIRTUAL_NO_VALUE, EVIRTUAL_SET, EVIRTUAL_UNSET

Fields inherited from interface org.eclipse.emf.ecore.InternalEObject

EOPPOSITE_FEATURE_BASE

Constructor Summary

protected	QueryImpl()
protected	QueryImpl(OCLExpression expr) Creates a query from an OCLExpression (constraint or query).
protected	QueryImpl(java.lang.String qs) Parses and validates the query according to the well-formedness rules.

Method Summary

OCLExpression	basicGetExpression()
boolean	check(java.util.List objList) Determines whether all of the input objects satisfy the query.
boolean	check(java.lang.Object obj) Evaluates the query on an object.
java.lang.Object	eGet(int featureID, boolean resolve, boolean coreType)
boolean	eIsSet(int featureID)
void	eSet(int featureID, java.lang.Object newValue)
protected org.eclipse.emf.ecore.EClass	eStaticClass()
void	eUnset(int featureID)
java.lang.Object	evaluate() Evaluates the query.
java.util.List	evaluate(java.util.List objList) Evaluates the query on the input list.
java.lang.Object	evaluate(java.lang.Object obj) Evaluates the query on the object.
EvaluationEnvironment	getEvaluationEnvironment() Obtains the evaluation environment that I use to evaluate OCL expressions.
OCLExpression	getExpression()
java.util.Map	getExtentMap()
java.lang.String	queryText() Translates the query back to an OCL text string.
java.util.List	reject(java.util.List objList) Determines the subset of input objects that do not satisfy the query.
org.eclipse.emf.ecore.EClassifier	resultType() Obtains the OCL result type of the query.
java.util.List	select(java.util.List objList) Determines the subset of input objects that satisfy the query.
void	setEvaluationEnvironment(EvaluationEnvironment env) Sets the evaluation environment that I use to evaluate OCL expressions.
void	setExtentMap(java.util.Map newExtentMap)
java.lang.String	toString()
protected void	validate() Validates me according to the rules for OCL well-formedness.

Methods inherited from class org.eclipse.emf.ecore.impl.EObjectImpl

eAdapters, eBasicAdapters, eBasicProperties, eBasicSetContainer, eClass, eContainerFeatureID, eDeliver, eInternalContainer, eIsProxy, eProperties, eSetClass, eSetDeliver, eSetProxyURI

Methods inherited from class org.eclipse.emf.ecore.impl.BasicEObjectImpl

eAddVirtualValue, eAllContents, eBaseStructuralFeatureID, eBasicRemoveFromContainer, eBasicRemoveFromContainerFeature, eBasicSetContainer, eComputeVirtualValuesCapacity, eContainer, eContainingFeature, eContainmentFeature, eContainmentFeature, eContains, eContents, eCrossReferences, eDerivedStructuralFeatureID, eDerivedStructuralFeatureID, eDirectResource, eDynamicBasicRemoveFromContainer, eDynamicClass, eDynamicFeature, eDynamicFeatureID, eDynamicGet, eDynamicGet, eDynamicGet, eDynamicInverseAdd, eDynamicInverseAdd, eDynamicInverseRemove, eDynamicInverseRemove, eDynamicIsSet, eDynamicIsSet, eDynamicIsSet, eDynamicSet, eDynamicSet, eDynamicSet, eDynamicUnset, eDynamicUnset, eDynamicUnset, eGet, eGet, eGet, eHasSettings, eInternalResource, eInverseAdd, eInverseAdd, eInverseRemove, eInverseRemove, eIsSet, eObjectForURIFragmentSegment, eOpenGet, eOpenIsSet, eOpenSet, eOpenUnset, eProxyURI, eRemoveVirtualValue, eResolveProxy, eResource, eSet, eSetDirectResource, eSetResource, eSetStore, eSetting, eSettingDelegate, eSettings, eSetVirtualIndexBits, eSetVirtualValue, eSetVirtualValues, eStaticFeatureCount, eStore, eUnset, eURIFragmentSegment, eVirtualBitCount, eVirtualGet, eVirtualGet, eVirtualIndex, eVirtualIndexBits, eVirtualIsSet, eVirtualSet, eVirtualUnset, eVirtualValue, eVirtualValues

Methods inherited from class org.eclipse.emf.common.notify.impl.BasicNotifierImpl

eNotificationRequired, eNotify

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.emf.ecore.EObject

eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eIsProxy, eIsSet, eResource, eSet, eUnset

Methods inherited from interface org.eclipse.emf.common.notify.Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Methods inherited from interface org.eclipse.emf.ecore.InternalEObject

eNotificationRequired

Field Detail

copyright

public static final java.lang.String copyright

See Also:

Constant Field Values

EXTENT_MAP_EDEFAULT

protected static final java.util.Map EXTENT_MAP_EDEFAULT

The default value of the 'Extent Map' attribute.

See Also:

getExtentMap()

extentMap

protected java.util.Map extentMap

The cached value of the 'Extent Map' attribute.

See Also:

getExtentMap()

expression

protected OCLExpression expression

The cached value of the 'Expression' reference.

See Also:

getExpression()

Constructor Detail

QueryImpl

protected QueryImpl()

QueryImpl

protected QueryImpl(java.lang.String qs)
             throws ParserException

Parses and validates the query according to the well-formedness rules. The query string must be of the form "context a::b::c inv: oclexpression" or, optionally, "package a::b context c inv: oclexpression endpackage".

Parameters:

qs - the query string

Throws:

ParserException - in case of a parser error

QueryImpl

protected QueryImpl(OCLExpression expr)
             throws SemanticException

Creates a query from an OCLExpression (constraint or query). The query is validated according to OCL well-formedness rules.

Parameters:

expr - the ocl expression

Throws:

SemanticException - in case of well-formedness problems

Method Detail

eStaticClass

protected org.eclipse.emf.ecore.EClass eStaticClass()

Overrides:

eStaticClass in class org.eclipse.emf.ecore.impl.EObjectImpl

getExtentMap

public java.util.Map getExtentMap()

Specified by:

getExtentMap in interface Query

Returns:

the map of classifiers (EClassifier) to their extents (List)

See Also:

Query.setExtentMap(Map)

setExtentMap

public void setExtentMap(java.util.Map newExtentMap)

Specified by:

setExtentMap in interface Query

Parameters:

newExtentMap - a map of classifiers (EClassifier) to their extents (List)

See Also:

Query.getExtentMap()

getExpression

public OCLExpression getExpression()

Specified by:

getExpression in interface Query

Returns:

the value of the 'Expression' reference.

See Also:

QueryPackage.getQuery_Expression()

basicGetExpression

public OCLExpression basicGetExpression()

evaluate

public java.lang.Object evaluate(java.lang.Object obj)

Description copied from interface: Query

Evaluates the query on the object.

Specified by:

evaluate in interface Query

Parameters:

obj - an Object

Returns:

the result of the query, which may be one or more EObjects, Java objects, a mixture, or even null. In any case, the results conform to the expression's result type

See Also:

Query.evaluate(), Query.evaluate(List), Query.resultType()

evaluate

public java.lang.Object evaluate()

Description copied from interface: Query

Evaluates the query. This method is used when there is no 'self' context required by the query. Either the query is constant, or uses allInstances() exclusively for evaluation.

Specified by:

evaluate in interface Query

Returns:

the result of the query, which may be one or more EObjects, Java objects, a mixture, or even null. In any case, the results conform to the expression's result type

See Also:

Query.resultType()

check

public boolean check(java.lang.Object obj)

Description copied from interface: Query

Evaluates the query on an object. The query must be a boolean valued constraint.

Specified by:

check in interface Query

Returns:

boolean true or false according to whether the constraint is met

See Also:

Query.check(List)

evaluate

public java.util.List evaluate(java.util.List objList)

Description copied from interface: Query

Evaluates the query on the input list. The results are returned in a corresponding list of results.

Specified by:

evaluate in interface Query

Returns:

a list of results, corresponding one-for-one with the objects. Note that result elements may, themselves, be collections of multiple results for a single input object. In any case, the results conform to the expression's result type

See Also:

#evaluate(EObject), Query.resultType()

check

public boolean check(java.util.List objList)

Description copied from interface: Query

Determines whether all of the input objects satisfy the query. The query must be a boolean-valued constraint.

Specified by:

check in interface Query

Parameters:

objList - a list of objects to evaluate the constraint on

Returns:

true if all of the objects satisfy the constraint (including the trivial case of an empty input list); false, otherwise

See Also:

#check(EObject)

select

public java.util.List select(java.util.List objList)

Description copied from interface: Query

Determines the subset of input objects that satisfy the query. The query must be a boolean valued constraint.

Specified by:

select in interface Query

Returns:

the subset (possibly empty) of the objects that satisfy the constraint

reject

public java.util.List reject(java.util.List objList)

Description copied from interface: Query

Determines the subset of input objects that do not satisfy the query. The query must be a boolean valued constraint.

Specified by:

reject in interface Query

Returns:

the subset (possibly empty) of the objects that do not satisfy the constraint

resultType

public org.eclipse.emf.ecore.EClassifier resultType()

Description copied from interface: Query

Obtains the OCL result type of the query. This may be an EClassifier in the user metamodel, or it may represent a core Java language type (such as Boolean in the case of constraints) or an OCL data type.

Specified by:

resultType in interface Query

Returns:

the query's result type

queryText

public java.lang.String queryText()

Description copied from interface: Query

Translates the query back to an OCL text string.

Specified by:

queryText in interface Query

Returns:

the text of the OCL query expression

eGet

public java.lang.Object eGet(int featureID,
                             boolean resolve,
                             boolean coreType)

Specified by:

eGet in interface org.eclipse.emf.ecore.InternalEObject

Overrides:

eGet in class org.eclipse.emf.ecore.impl.BasicEObjectImpl

eSet

public void eSet(int featureID,
                 java.lang.Object newValue)

Specified by:

eSet in interface org.eclipse.emf.ecore.InternalEObject

Overrides:

eSet in class org.eclipse.emf.ecore.impl.BasicEObjectImpl

eUnset

public void eUnset(int featureID)

Specified by:

eUnset in interface org.eclipse.emf.ecore.InternalEObject

Overrides:

eUnset in class org.eclipse.emf.ecore.impl.BasicEObjectImpl

eIsSet

public boolean eIsSet(int featureID)

Specified by:

eIsSet in interface org.eclipse.emf.ecore.InternalEObject

Overrides:

eIsSet in class org.eclipse.emf.ecore.impl.BasicEObjectImpl

validate

protected void validate()

Validates me according to the rules for OCL well-formedness.

setEvaluationEnvironment

public void setEvaluationEnvironment(EvaluationEnvironment env)

Description copied from interface: Query

Sets the evaluation environment that I use to evaluate OCL expressions.

Specified by:

setEvaluationEnvironment in interface Query

Parameters:

env - my environment

getEvaluationEnvironment

public EvaluationEnvironment getEvaluationEnvironment()

Description copied from interface: Query

Obtains the evaluation environment that I use to evaluate OCL expressions.

Specified by:

getEvaluationEnvironment in interface Query

Returns:

my environment

toString

public java.lang.String toString()

Overrides:

toString in class org.eclipse.emf.ecore.impl.BasicEObjectImpl