| package org.eclipse.viatra.query.runtime.runonce.tests; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Set; |
| import org.apache.log4j.Logger; |
| import org.eclipse.viatra.examples.library.Book; |
| import org.eclipse.viatra.examples.library.Library; |
| import org.eclipse.viatra.query.runtime.api.IMatchProcessor; |
| import org.eclipse.viatra.query.runtime.api.IQuerySpecification; |
| import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine; |
| import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher; |
| import org.eclipse.viatra.query.runtime.exception.ViatraQueryException; |
| import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple; |
| import org.eclipse.viatra.query.runtime.runonce.tests.SomeBooksWithTwoAuthorsMatch; |
| import org.eclipse.viatra.query.runtime.runonce.tests.util.SomeBooksWithTwoAuthorsQuerySpecification; |
| import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil; |
| |
| /** |
| * Generated pattern matcher API of the org.eclipse.viatra.query.runtime.runonce.tests.someBooksWithTwoAuthors pattern, |
| * providing pattern-specific query methods. |
| * |
| * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)}, |
| * e.g. in conjunction with {@link ViatraQueryEngine#on(Notifier)}. |
| * |
| * <p>Matches of the pattern will be represented as {@link SomeBooksWithTwoAuthorsMatch}. |
| * |
| * <p>Original source: |
| * <code><pre> |
| * pattern someBooksWithTwoAuthors(library : Library, book : Book) { |
| * Library.requestCount(library, _c); |
| * Library.someBooks(library, book); |
| * 2 == count find bookAuthors(book, _author); |
| * } |
| * </pre></code> |
| * |
| * @see SomeBooksWithTwoAuthorsMatch |
| * @see SomeBooksWithTwoAuthorsProcessor |
| * @see SomeBooksWithTwoAuthorsQuerySpecification |
| * |
| */ |
| @SuppressWarnings("all") |
| public class SomeBooksWithTwoAuthorsMatcher extends BaseMatcher<SomeBooksWithTwoAuthorsMatch> { |
| /** |
| * 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. |
| * @param engine the existing VIATRA Query engine in which this matcher will be created. |
| * @throws ViatraQueryException if an error occurs during pattern matcher creation |
| * |
| */ |
| public static SomeBooksWithTwoAuthorsMatcher on(final ViatraQueryEngine engine) throws ViatraQueryException { |
| // check if matcher already exists |
| SomeBooksWithTwoAuthorsMatcher matcher = engine.getExistingMatcher(querySpecification()); |
| if (matcher == null) { |
| matcher = new SomeBooksWithTwoAuthorsMatcher(engine); |
| // do not have to "put" it into engine.matchers, reportMatcherInitialized() will take care of it |
| } |
| return matcher; |
| } |
| |
| private final static int POSITION_LIBRARY = 0; |
| |
| private final static int POSITION_BOOK = 1; |
| |
| private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(SomeBooksWithTwoAuthorsMatcher.class); |
| |
| /** |
| * 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. |
| * @param engine the existing VIATRA Query engine in which this matcher will be created. |
| * @throws ViatraQueryException if an error occurs during pattern matcher creation |
| * |
| */ |
| private SomeBooksWithTwoAuthorsMatcher(final ViatraQueryEngine engine) throws ViatraQueryException { |
| super(engine, querySpecification()); |
| } |
| |
| /** |
| * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @return matches represented as a SomeBooksWithTwoAuthorsMatch object. |
| * |
| */ |
| public Collection<SomeBooksWithTwoAuthorsMatch> getAllMatches(final Library pLibrary, final Book pBook) { |
| return rawGetAllMatches(new Object[]{pLibrary, pBook}); |
| } |
| |
| /** |
| * 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. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @return a match represented as a SomeBooksWithTwoAuthorsMatch object, or null if no match is found. |
| * |
| */ |
| public SomeBooksWithTwoAuthorsMatch getOneArbitraryMatch(final Library pLibrary, final Book pBook) { |
| return rawGetOneArbitraryMatch(new Object[]{pLibrary, pBook}); |
| } |
| |
| /** |
| * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match, |
| * under any possible substitution of the unspecified parameters (if any). |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @return true if the input is a valid (partial) match of the pattern. |
| * |
| */ |
| public boolean hasMatch(final Library pLibrary, final Book pBook) { |
| return rawHasMatch(new Object[]{pLibrary, pBook}); |
| } |
| |
| /** |
| * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @return the number of pattern matches found. |
| * |
| */ |
| public int countMatches(final Library pLibrary, final Book pBook) { |
| return rawCountMatches(new Object[]{pLibrary, pBook}); |
| } |
| |
| /** |
| * Executes the given processor on each match of the pattern that conforms to the given fixed values of some parameters. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @param processor the action that will process each pattern match. |
| * |
| */ |
| public void forEachMatch(final Library pLibrary, final Book pBook, final IMatchProcessor<? super SomeBooksWithTwoAuthorsMatch> processor) { |
| rawForEachMatch(new Object[]{pLibrary, pBook}, 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. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @param processor the action that will process the selected match. |
| * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked |
| * |
| */ |
| public boolean forOneArbitraryMatch(final Library pLibrary, final Book pBook, final IMatchProcessor<? super SomeBooksWithTwoAuthorsMatch> processor) { |
| return rawForOneArbitraryMatch(new Object[]{pLibrary, pBook}, processor); |
| } |
| |
| /** |
| * Returns a new (partial) match. |
| * This can be used e.g. to call the matcher with a partial match. |
| * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object. |
| * @param pLibrary the fixed value of pattern parameter library, or null if not bound. |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @return the (partial) match object. |
| * |
| */ |
| public SomeBooksWithTwoAuthorsMatch newMatch(final Library pLibrary, final Book pBook) { |
| return SomeBooksWithTwoAuthorsMatch.newMatch(pLibrary, pBook); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for library. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| protected Set<Library> rawAccumulateAllValuesOflibrary(final Object[] parameters) { |
| Set<Library> results = new HashSet<Library>(); |
| rawAccumulateAllValues(POSITION_LIBRARY, parameters, results); |
| return results; |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for library. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Library> getAllValuesOflibrary() { |
| return rawAccumulateAllValuesOflibrary(emptyArray()); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for library. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Library> getAllValuesOflibrary(final SomeBooksWithTwoAuthorsMatch partialMatch) { |
| return rawAccumulateAllValuesOflibrary(partialMatch.toArray()); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for library. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Library> getAllValuesOflibrary(final Book pBook) { |
| return rawAccumulateAllValuesOflibrary(new Object[]{ |
| null, |
| pBook |
| }); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for book. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| protected Set<Book> rawAccumulateAllValuesOfbook(final Object[] parameters) { |
| Set<Book> results = new HashSet<Book>(); |
| rawAccumulateAllValues(POSITION_BOOK, parameters, results); |
| return results; |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for book. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Book> getAllValuesOfbook() { |
| return rawAccumulateAllValuesOfbook(emptyArray()); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for book. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Book> getAllValuesOfbook(final SomeBooksWithTwoAuthorsMatch partialMatch) { |
| return rawAccumulateAllValuesOfbook(partialMatch.toArray()); |
| } |
| |
| /** |
| * Retrieve the set of values that occur in matches for book. |
| * @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches |
| * |
| */ |
| public Set<Book> getAllValuesOfbook(final Library pLibrary) { |
| return rawAccumulateAllValuesOfbook(new Object[]{ |
| pLibrary, |
| null |
| }); |
| } |
| |
| @Override |
| protected SomeBooksWithTwoAuthorsMatch tupleToMatch(final Tuple t) { |
| try { |
| return SomeBooksWithTwoAuthorsMatch.newMatch((Library) t.get(POSITION_LIBRARY), (Book) t.get(POSITION_BOOK)); |
| } catch(ClassCastException e) { |
| LOGGER.error("Element(s) in tuple not properly typed!",e); |
| return null; |
| } |
| } |
| |
| @Override |
| protected SomeBooksWithTwoAuthorsMatch arrayToMatch(final Object[] match) { |
| try { |
| return SomeBooksWithTwoAuthorsMatch.newMatch((Library) match[POSITION_LIBRARY], (Book) match[POSITION_BOOK]); |
| } catch(ClassCastException e) { |
| LOGGER.error("Element(s) in array not properly typed!",e); |
| return null; |
| } |
| } |
| |
| @Override |
| protected SomeBooksWithTwoAuthorsMatch arrayToMatchMutable(final Object[] match) { |
| try { |
| return SomeBooksWithTwoAuthorsMatch.newMutableMatch((Library) match[POSITION_LIBRARY], (Book) match[POSITION_BOOK]); |
| } catch(ClassCastException e) { |
| LOGGER.error("Element(s) in array not properly typed!",e); |
| return null; |
| } |
| } |
| |
| /** |
| * @return the singleton instance of the query specification of this pattern |
| * @throws ViatraQueryException if the pattern definition could not be loaded |
| * |
| */ |
| public static IQuerySpecification<SomeBooksWithTwoAuthorsMatcher> querySpecification() throws ViatraQueryException { |
| return SomeBooksWithTwoAuthorsQuerySpecification.instance(); |
| } |
| } |