| package org.eclipse.viatra.query.runtime.runonce.tests; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import org.eclipse.viatra.examples.library.Book; |
| import org.eclipse.viatra.examples.library.Writer; |
| import org.eclipse.viatra.query.runtime.api.IPatternMatch; |
| import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch; |
| import org.eclipse.viatra.query.runtime.exception.ViatraQueryException; |
| import org.eclipse.viatra.query.runtime.runonce.tests.util.BookAuthorsQuerySpecification; |
| |
| /** |
| * Pattern-specific match representation of the org.eclipse.viatra.query.runtime.runonce.tests.bookAuthors pattern, |
| * to be used in conjunction with {@link BookAuthorsMatcher}. |
| * |
| * <p>Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned. |
| * Each instance is a (possibly partial) substitution of pattern parameters, |
| * usable to represent a match of the pattern in the result of a query, |
| * or to specify the bound (fixed) input parameters when issuing a query. |
| * |
| * @see BookAuthorsMatcher |
| * @see BookAuthorsProcessor |
| * |
| */ |
| @SuppressWarnings("all") |
| public abstract class BookAuthorsMatch extends BasePatternMatch { |
| private Book fBook; |
| |
| private Writer fAuthor; |
| |
| private static List<String> parameterNames = makeImmutableList("book", "author"); |
| |
| private BookAuthorsMatch(final Book pBook, final Writer pAuthor) { |
| this.fBook = pBook; |
| this.fAuthor = pAuthor; |
| } |
| |
| @Override |
| public Object get(final String parameterName) { |
| if ("book".equals(parameterName)) return this.fBook; |
| if ("author".equals(parameterName)) return this.fAuthor; |
| return null; |
| } |
| |
| public Book getBook() { |
| return this.fBook; |
| } |
| |
| public Writer getAuthor() { |
| return this.fAuthor; |
| } |
| |
| @Override |
| public boolean set(final String parameterName, final Object newValue) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| if ("book".equals(parameterName) ) { |
| this.fBook = (Book) newValue; |
| return true; |
| } |
| if ("author".equals(parameterName) ) { |
| this.fAuthor = (Writer) newValue; |
| return true; |
| } |
| return false; |
| } |
| |
| public void setBook(final Book pBook) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| this.fBook = pBook; |
| } |
| |
| public void setAuthor(final Writer pAuthor) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| this.fAuthor = pAuthor; |
| } |
| |
| @Override |
| public String patternName() { |
| return "org.eclipse.viatra.query.runtime.runonce.tests.bookAuthors"; |
| } |
| |
| @Override |
| public List<String> parameterNames() { |
| return BookAuthorsMatch.parameterNames; |
| } |
| |
| @Override |
| public Object[] toArray() { |
| return new Object[]{fBook, fAuthor}; |
| } |
| |
| @Override |
| public BookAuthorsMatch toImmutable() { |
| return isMutable() ? newMatch(fBook, fAuthor) : this; |
| } |
| |
| @Override |
| public String prettyPrint() { |
| StringBuilder result = new StringBuilder(); |
| result.append("\"book\"=" + prettyPrintValue(fBook) + ", "); |
| |
| result.append("\"author\"=" + prettyPrintValue(fAuthor) |
| ); |
| return result.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((fBook == null) ? 0 : fBook.hashCode()); |
| result = prime * result + ((fAuthor == null) ? 0 : fAuthor.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(final Object obj) { |
| if (this == obj) |
| return true; |
| if (!(obj instanceof BookAuthorsMatch)) { // this should be infrequent |
| if (obj == null) { |
| return false; |
| } |
| if (!(obj instanceof IPatternMatch)) { |
| return false; |
| } |
| IPatternMatch otherSig = (IPatternMatch) obj; |
| if (!specification().equals(otherSig.specification())) |
| return false; |
| return Arrays.deepEquals(toArray(), otherSig.toArray()); |
| } |
| BookAuthorsMatch other = (BookAuthorsMatch) obj; |
| if (fBook == null) {if (other.fBook != null) return false;} |
| else if (!fBook.equals(other.fBook)) return false; |
| if (fAuthor == null) {if (other.fAuthor != null) return false;} |
| else if (!fAuthor.equals(other.fAuthor)) return false; |
| return true; |
| } |
| |
| @Override |
| public BookAuthorsQuerySpecification specification() { |
| try { |
| return BookAuthorsQuerySpecification.instance(); |
| } catch (ViatraQueryException ex) { |
| // This cannot happen, as the match object can only be instantiated if the query specification exists |
| throw new IllegalStateException (ex); |
| } |
| } |
| |
| /** |
| * Returns an empty, mutable match. |
| * Fields of the mutable match can be filled to create a partial match, usable as matcher input. |
| * |
| * @return the empty match. |
| * |
| */ |
| public static BookAuthorsMatch newEmptyMatch() { |
| return new Mutable(null, null); |
| } |
| |
| /** |
| * Returns a mutable (partial) match. |
| * Fields of the mutable match can be filled to create a partial match, usable as matcher input. |
| * |
| * @param pBook the fixed value of pattern parameter book, or null if not bound. |
| * @param pAuthor the fixed value of pattern parameter author, or null if not bound. |
| * @return the new, mutable (partial) match object. |
| * |
| */ |
| public static BookAuthorsMatch newMutableMatch(final Book pBook, final Writer pAuthor) { |
| return new Mutable(pBook, pAuthor); |
| } |
| |
| /** |
| * 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 pBook the fixed value of pattern parameter book, or null if not bound. |
| * @param pAuthor the fixed value of pattern parameter author, or null if not bound. |
| * @return the (partial) match object. |
| * |
| */ |
| public static BookAuthorsMatch newMatch(final Book pBook, final Writer pAuthor) { |
| return new Immutable(pBook, pAuthor); |
| } |
| |
| private static final class Mutable extends BookAuthorsMatch { |
| Mutable(final Book pBook, final Writer pAuthor) { |
| super(pBook, pAuthor); |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return true; |
| } |
| } |
| |
| private static final class Immutable extends BookAuthorsMatch { |
| Immutable(final Book pBook, final Writer pAuthor) { |
| super(pBook, pAuthor); |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return false; |
| } |
| } |
| } |