public class EmptyTraceMatcher extends org.eclipse.viatra.query.runtime.api.impl.BaseMatcher<EmptyTraceMatch>
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 EmptyTraceMatch
.
Original source:
@QueryExplorer(checked = false)
pattern emptyTrace(trace : Trace) {
Trace(trace);
neg find traceTargets(trace,_);
}
EmptyTraceMatch
,
EmptyTraceProcessor
,
EmptyTraceQuerySpecification
Modifier and Type | Method and Description |
---|---|
int |
countMatches(Trace pTrace)
Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
|
void |
forEachMatch(Trace pTrace,
org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super EmptyTraceMatch> processor)
Executes the given processor on each match of the pattern that conforms to the given fixed values of some parameters.
|
boolean |
forOneArbitraryMatch(Trace pTrace,
org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super EmptyTraceMatch> 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<EmptyTraceMatch> |
getAllMatches(Trace pTrace)
Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
|
java.util.Set<Trace> |
getAllValuesOftrace()
Retrieve the set of values that occur in matches for trace.
|
EmptyTraceMatch |
getOneArbitraryMatch(Trace pTrace)
Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
|
boolean |
hasMatch(Trace pTrace)
Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
under any possible substitution of the unspecified parameters (if any).
|
EmptyTraceMatch |
newMatch(Trace pTrace)
Returns a new (partial) match.
|
static EmptyTraceMatcher |
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<EmptyTraceMatcher> |
querySpecification() |
countMatches, countMatches, forEachMatch, forEachMatch, forOneArbitraryMatch, forOneArbitraryMatch, getAllMatches, getAllMatches, getAllValues, getAllValues, getEngine, getOneArbitraryMatch, getOneArbitraryMatch, getParameterNames, getPatternName, getPositionOfParameter, getSpecification, hasMatch, newEmptyMatch, newMatch
public static EmptyTraceMatcher on(org.eclipse.viatra.query.runtime.api.ViatraQueryEngine engine) throws org.eclipse.viatra.query.runtime.exception.ViatraQueryException
engine
- the existing VIATRA Query engine in which this matcher will be created.org.eclipse.viatra.query.runtime.exception.ViatraQueryException
- if an error occurs during pattern matcher creationpublic java.util.Collection<EmptyTraceMatch> getAllMatches(Trace pTrace)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.public EmptyTraceMatch getOneArbitraryMatch(Trace pTrace)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.public boolean hasMatch(Trace pTrace)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.public int countMatches(Trace pTrace)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.public void forEachMatch(Trace pTrace, org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super EmptyTraceMatch> processor)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.processor
- the action that will process each pattern match.public boolean forOneArbitraryMatch(Trace pTrace, org.eclipse.viatra.query.runtime.api.IMatchProcessor<? super EmptyTraceMatch> processor)
pTrace
- the fixed value of pattern parameter trace, or null if not bound.processor
- the action that will process the selected match.public EmptyTraceMatch newMatch(Trace pTrace)
The returned match will be immutable. Use BaseMatcher.newEmptyMatch()
to obtain a mutable match object.
pTrace
- the fixed value of pattern parameter trace, or null if not bound.public java.util.Set<Trace> getAllValuesOftrace()
public static org.eclipse.viatra.query.runtime.api.IQuerySpecification<EmptyTraceMatcher> querySpecification() throws org.eclipse.viatra.query.runtime.exception.ViatraQueryException
org.eclipse.viatra.query.runtime.exception.ViatraQueryException
- if the pattern definition could not be loaded