org.eclipse.viatra.query.runtime.api.impl

Class BaseGeneratedPrivateEMFQuerySpecification

java.lang.Object

org.eclipse.viatra.query.runtime.api.impl.BaseQuerySpecification<Matcher>

org.eclipse.viatra.query.runtime.api.GenericQuerySpecification<GenericPatternMatcher>

org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedPrivateEMFQuerySpecification

All Implemented Interfaces:

IQuerySpecification<GenericPatternMatcher>, PQueryHeader

public abstract class BaseGeneratedPrivateEMFQuerySpecification
extends GenericQuerySpecification<GenericPatternMatcher>

Provides common functionality of pattern-specific generated query specifications for private patterns over the EMF scope.

Since:

1.6

Field Summary

Fields inherited from class org.eclipse.viatra.query.runtime.api.impl.BaseQuerySpecification

wrappedPQuery

Constructor Summary

Constructors

Constructor and Description
BaseGeneratedPrivateEMFQuerySpecification(PQuery wrappedPQuery)

Method Summary

Modifier and Type	Method and Description
java.lang.Class<? extends QueryScope>	getPreferredScopeClass() The query is formulated over this kind of modeling platform.
GenericPatternMatcher	instantiate() For backward compatibility of code generated with previous versions of viatra query, this method has a default implementation returning null, indicating that a matcher can only be created using the old method, which ignores the hints provided by the user.
protected GenericPatternMatcher	instantiate(ViatraQueryEngine engine)
GenericPatternMatch	newEmptyMatch() Returns an empty, mutable Match compatible with matchers of this query.
GenericPatternMatch	newMatch(java.lang.Object... parameters) Returns a new (partial) Match object compatible with matchers of this query.

Methods inherited from class org.eclipse.viatra.query.runtime.api.GenericQuerySpecification

defaultInstantiate

Methods inherited from class org.eclipse.viatra.query.runtime.api.impl.BaseQuerySpecification

ensureInitializedInternal, ensureInitializedInternalSneaky, getAllAnnotations, getAnnotationsByName, getFirstAnnotationByName, getFullyQualifiedName, getInternalQueryRepresentation, getMatcher, getParameterNames, getParameters, getPositionOfParameter, processInitializerError

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseGeneratedPrivateEMFQuerySpecification

public BaseGeneratedPrivateEMFQuerySpecification(PQuery wrappedPQuery)

Method Detail

getPreferredScopeClass

public java.lang.Class<? extends QueryScope> getPreferredScopeClass()

Description copied from interface: IQuerySpecification

The query is formulated over this kind of modeling platform. E.g. for queries over EMF models, the EMFScope class is returned.

instantiate

protected GenericPatternMatcher instantiate(ViatraQueryEngine engine)
                                     throws ViatraQueryException

Specified by:

instantiate in class BaseQuerySpecification<GenericPatternMatcher>

Throws:

ViatraQueryException

instantiate

public GenericPatternMatcher instantiate()
                                  throws ViatraQueryException

Description copied from class: BaseQuerySpecification

For backward compatibility of code generated with previous versions of viatra query, this method has a default implementation returning null, indicating that a matcher can only be created using the old method, which ignores the hints provided by the user.

Specified by:

instantiate in interface IQuerySpecification<GenericPatternMatcher>

Overrides:

instantiate in class BaseQuerySpecification<GenericPatternMatcher>

Throws:

ViatraQueryException

newEmptyMatch

public GenericPatternMatch newEmptyMatch()

Description copied from interface: IQuerySpecification

Returns an empty, mutable Match compatible with matchers of this query. Fields of the mutable match can be filled to create a partial match, usable as matcher input. This can be used to call the matcher with a partial match even if the specific class of the matcher or the match is unknown.

Specified by:

newEmptyMatch in interface IQuerySpecification<GenericPatternMatcher>

Overrides:

newEmptyMatch in class GenericQuerySpecification<GenericPatternMatcher>

Returns:

the empty match

newMatch

public GenericPatternMatch newMatch(java.lang.Object... parameters)

Description copied from interface: IQuerySpecification

Returns a new (partial) Match object compatible with matchers of this query. This can be used e.g. to call the matcher with a partial match.

The returned match will be immutable. Use IQuerySpecification.newEmptyMatch() to obtain a mutable match object.

Specified by:

newMatch in interface IQuerySpecification<GenericPatternMatcher>

Overrides:

newMatch in class GenericQuerySpecification<GenericPatternMatcher>

Parameters:

parameters - the fixed value of pattern parameters, or null if not bound.

Returns:

the (partial) match object.