Class BaseQueryGroup
- java.lang.Object
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- org.eclipse.viatra.query.runtime.api.impl.BaseQueryGroup
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- All Implemented Interfaces:
IQueryGroup
- Direct Known Subclasses:
BaseGeneratedPatternGroup
,GenericQueryGroup
,LazyLoadingQueryGroup
,PackageBasedQueryGroup
public abstract class BaseQueryGroup extends java.lang.Object implements IQueryGroup
Base implementation ofIQueryGroup
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Constructor Summary
Constructors Constructor Description BaseQueryGroup()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
prepare(AdvancedViatraQueryEngine engine)
void
prepare(ViatraQueryEngine engine)
Initializes matchers for the group of patterns within anViatraQueryEngine
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.viatra.query.runtime.api.IQueryGroup
getSpecifications
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Method Detail
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prepare
public void prepare(ViatraQueryEngine engine)
Description copied from interface:IQueryGroup
Initializes matchers for the group of patterns within anViatraQueryEngine
. If some of the pattern matchers are already constructed in the engine, no task is performed for them.This preparation step has the advantage that it prepares pattern matchers for an arbitrary number of patterns in a single-pass traversal of the model. This is typically more efficient than traversing the model each time an individual pattern matcher is initialized on demand. The performance benefit only manifests itself if the engine is not in wildcard mode.
- Specified by:
prepare
in interfaceIQueryGroup
- Parameters:
engine
- the existing VIATRA Query engine in which the matchers will be created.
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prepare
protected void prepare(AdvancedViatraQueryEngine engine)
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