org.eclipse.viatra.transformation.views.traceability.patterns

Class Param2targetMatcher

java.lang.Object

org.eclipse.viatra.query.runtime.internal.apiimpl.QueryResultWrapper

org.eclipse.viatra.query.runtime.api.impl.BaseMatcher<Param2targetMatch>

org.eclipse.viatra.transformation.views.traceability.patterns.Param2targetMatcher

All Implemented Interfaces:

org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<Param2targetMatch>

public class Param2targetMatcher
extends org.eclipse.viatra.query.runtime.api.impl.BaseMatcher<Param2targetMatch>

Generated pattern matcher API of the org.eclipse.viatra.transformation.views.traceability.patterns.param2target pattern, providing pattern-specific query methods.

Use the pattern matcher on a given model via on(ViatraQueryEngine), e.g. in conjunction with ViatraQueryEngine#on(Notifier).

Matches of the pattern will be represented as Param2targetMatch.

Original source:

 @QueryExplorer(checked = false)
 pattern param2target(param : EObject, target : EObject) {
        Trace.params(trace, param);
        Trace.targets(trace, target);
 }
 

See Also:

Param2targetMatch, Param2targetProcessor, Param2targetQuerySpecification

Method Summary

Methods

Modifier and Type	Method and Description
int	countMatches(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget) Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
void	forEachMatch(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget, org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super Param2targetMatch> processor) Executes the given processor on each match of the pattern that conforms to the given fixed values of some parameters.
boolean	forOneArbitraryMatch(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget, org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super Param2targetMatch> processor) Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
java.util.Collection<Param2targetMatch>	getAllMatches(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget) Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOfparam() Retrieve the set of values that occur in matches for param.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOfparam(org.eclipse.emf.ecore.EObject pTarget) Retrieve the set of values that occur in matches for param.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOfparam(Param2targetMatch partialMatch) Retrieve the set of values that occur in matches for param.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOftarget() Retrieve the set of values that occur in matches for target.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOftarget(org.eclipse.emf.ecore.EObject pParam) Retrieve the set of values that occur in matches for target.
java.util.Set<org.eclipse.emf.ecore.EObject>	getAllValuesOftarget(Param2targetMatch partialMatch) Retrieve the set of values that occur in matches for target.
Param2targetMatch	getOneArbitraryMatch(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget) Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
boolean	hasMatch(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget) Indicates whether the given combination of specified pattern parameters constitute a valid pattern match, under any possible substitution of the unspecified parameters (if any).
Param2targetMatch	newMatch(org.eclipse.emf.ecore.EObject pParam, org.eclipse.emf.ecore.EObject pTarget) Returns a new (partial) match.
static Param2targetMatcher	on(org.eclipse.viatra.query.runtime.api.ViatraQueryEngine engine) Initializes the pattern matcher within an existing VIATRA Query engine.
static org.eclipse.viatra.query.runtime.api.IQuerySpecification<Param2targetMatcher>	querySpecification()

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

countMatches, countMatches, forEachMatch, forEachMatch, forOneArbitraryMatch, forOneArbitraryMatch, getAllMatches, getAllMatches, getAllValues, getAllValues, getEngine, getOneArbitraryMatch, getOneArbitraryMatch, getParameterNames, getPatternName, getPositionOfParameter, getSpecification, hasMatch, newEmptyMatch, newMatch

Methods inherited from class java.lang.Object

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

Method Detail

on

public static Param2targetMatcher on(org.eclipse.viatra.query.runtime.api.ViatraQueryEngine engine)
                              throws org.eclipse.viatra.query.runtime.exception.ViatraQueryException

Initializes the pattern matcher within an existing VIATRA Query engine. If the pattern matcher is already constructed in the engine, only a light-weight reference is returned. The match set will be incrementally refreshed upon updates.

Parameters:

engine - the existing VIATRA Query engine in which this matcher will be created.

Throws:

org.eclipse.viatra.query.runtime.exception.ViatraQueryException - if an error occurs during pattern matcher creation

getAllMatches

public java.util.Collection<Param2targetMatch> getAllMatches(org.eclipse.emf.ecore.EObject pParam,
                                                    org.eclipse.emf.ecore.EObject pTarget)

Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

Returns:

matches represented as a Param2targetMatch object.

getOneArbitraryMatch

public Param2targetMatch getOneArbitraryMatch(org.eclipse.emf.ecore.EObject pParam,
                                     org.eclipse.emf.ecore.EObject pTarget)

Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters. Neither determinism nor randomness of selection is guaranteed.

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

Returns:

a match represented as a Param2targetMatch object, or null if no match is found.

hasMatch

public boolean hasMatch(org.eclipse.emf.ecore.EObject pParam,
               org.eclipse.emf.ecore.EObject pTarget)

Indicates whether the given combination of specified pattern parameters constitute a valid pattern match, under any possible substitution of the unspecified parameters (if any).

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

Returns:

true if the input is a valid (partial) match of the pattern.

countMatches

public int countMatches(org.eclipse.emf.ecore.EObject pParam,
               org.eclipse.emf.ecore.EObject pTarget)

Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

Returns:

the number of pattern matches found.

forEachMatch

public void forEachMatch(org.eclipse.emf.ecore.EObject pParam,
                org.eclipse.emf.ecore.EObject pTarget,
                org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super Param2targetMatch> processor)

Executes the given processor on each match of the pattern that conforms to the given fixed values of some parameters.

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

processor - the action that will process each pattern match.

forOneArbitraryMatch

public boolean forOneArbitraryMatch(org.eclipse.emf.ecore.EObject pParam,
                           org.eclipse.emf.ecore.EObject pTarget,
                           org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super Param2targetMatch> processor)

Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters. Neither determinism nor randomness of selection is guaranteed.

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

processor - the action that will process the selected match.

Returns:

true if the pattern has at least one match with the given parameter values, false if the processor was not invoked

newMatch

public Param2targetMatch newMatch(org.eclipse.emf.ecore.EObject pParam,
                         org.eclipse.emf.ecore.EObject pTarget)

Returns a new (partial) match. This can be used e.g. to call the matcher with a partial match.

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

Parameters:

pParam - the fixed value of pattern parameter param, or null if not bound.

pTarget - the fixed value of pattern parameter target, or null if not bound.

Returns:

the (partial) match object.

getAllValuesOfparam

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOfparam()

Retrieve the set of values that occur in matches for param.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

getAllValuesOfparam

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOfparam(Param2targetMatch partialMatch)

Retrieve the set of values that occur in matches for param.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

getAllValuesOfparam

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOfparam(org.eclipse.emf.ecore.EObject pTarget)

Retrieve the set of values that occur in matches for param.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

getAllValuesOftarget

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOftarget()

Retrieve the set of values that occur in matches for target.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

getAllValuesOftarget

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOftarget(Param2targetMatch partialMatch)

Retrieve the set of values that occur in matches for target.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

getAllValuesOftarget

public java.util.Set<org.eclipse.emf.ecore.EObject> getAllValuesOftarget(org.eclipse.emf.ecore.EObject pParam)

Retrieve the set of values that occur in matches for target.

Returns:

the Set of all values, null if no parameter with the given name exists, empty set if there are no matches

querySpecification

public static org.eclipse.viatra.query.runtime.api.IQuerySpecification<Param2targetMatcher> querySpecification()
                                                                                                        throws org.eclipse.viatra.query.runtime.exception.ViatraQueryException

Returns:

the singleton instance of the query specification of this pattern

Throws:

org.eclipse.viatra.query.runtime.exception.ViatraQueryException - if the pattern definition could not be loaded