org.eclipse.incquery.runtime.extensibility

Class QuerySpecificationRegistry

java.lang.Object

org.eclipse.incquery.runtime.extensibility.QuerySpecificationRegistry

public final class QuerySpecificationRegistry
extends java.lang.Object

Registry for generated query specifications contributed via the plug-in mechanism. Allows accessing query specification instances based on the Pattern object or the fully qualified name of the pattern.

Author:

Abel Hegedus

Method Summary

Modifier and Type	Method and Description
static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>>	getContributedQuerySpecifications()
static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>>	getPatternGroup(java.lang.String packageFQN) Returns the set of query specifications in a given package.
static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>>	getPatternSubTree(java.lang.String packageFQN) Returns the set of query specifications in a given package.
static IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>	getQuerySpecification(java.lang.String patternFQN)
static void	registerQuerySpecification(IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>> specification) Puts the specification in the registry, unless it already contains a specification for the given pattern FQN
static void	unregisterQuerySpecification(java.lang.String patternFQN) Removes the query specification from the registry which belongs to the given fully qualified pattern name.

Methods inherited from class java.lang.Object

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

Method Detail

registerQuerySpecification

public static void registerQuerySpecification(IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>> specification)

Puts the specification in the registry, unless it already contains a specification for the given pattern FQN

Parameters:

specification -

unregisterQuerySpecification

public static void unregisterQuerySpecification(java.lang.String patternFQN)

Removes the query specification from the registry which belongs to the given fully qualified pattern name.

Parameters:

patternFQN - the fully qualified name of the pattern

getContributedQuerySpecifications

public static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>> getContributedQuerySpecifications()

Returns:

a copy of the set of contributed query specifications

getQuerySpecification

public static IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>> getQuerySpecification(java.lang.String patternFQN)

Parameters:

patternFQN - the fully qualified name of a registered generated pattern

Returns:

the generated query specification of the pattern with the given fully qualified name, if it is registered, or null if there is no such generated pattern

getPatternGroup

public static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>> getPatternGroup(java.lang.String packageFQN)

Returns the set of query specifications in a given package. Only query specifications with the exact package fully qualified name are returned.

Parameters:

packageFQN - the fully qualified name of the package

Returns:

the set of query specifications inside the given package, empty set otherwise.

getPatternSubTree

public static java.util.Set<IQuerySpecification<? extends IncQueryMatcher<? extends IPatternMatch>>> getPatternSubTree(java.lang.String packageFQN)

Returns the set of query specifications in a given package. query specifications with package names starting with the given package are returned.

Parameters:

packageFQN - the fully qualified name of the package

Returns:

the set of query specifications in the given package subtree, empty set otherwise.