| package org.eclipse.viatra.query.application.queries; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.viatra.query.application.queries.util.EClassNamesKeywordQuerySpecification; |
| 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; |
| |
| /** |
| * Pattern-specific match representation of the org.eclipse.viatra.query.application.queries.eClassNamesKeyword pattern, |
| * to be used in conjunction with {@link EClassNamesKeywordMatcher}. |
| * |
| * <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 EClassNamesKeywordMatcher |
| * @see EClassNamesKeywordProcessor |
| * |
| */ |
| @SuppressWarnings("all") |
| public abstract class EClassNamesKeywordMatch extends BasePatternMatch { |
| private EClass fC; |
| |
| private String fN; |
| |
| private static List<String> parameterNames = makeImmutableList("c", "n"); |
| |
| private EClassNamesKeywordMatch(final EClass pC, final String pN) { |
| this.fC = pC; |
| this.fN = pN; |
| } |
| |
| @Override |
| public Object get(final String parameterName) { |
| if ("c".equals(parameterName)) return this.fC; |
| if ("n".equals(parameterName)) return this.fN; |
| return null; |
| } |
| |
| public EClass getC() { |
| return this.fC; |
| } |
| |
| public String getN() { |
| return this.fN; |
| } |
| |
| @Override |
| public boolean set(final String parameterName, final Object newValue) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| if ("c".equals(parameterName) ) { |
| this.fC = (EClass) newValue; |
| return true; |
| } |
| if ("n".equals(parameterName) ) { |
| this.fN = (String) newValue; |
| return true; |
| } |
| return false; |
| } |
| |
| public void setC(final EClass pC) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| this.fC = pC; |
| } |
| |
| public void setN(final String pN) { |
| if (!isMutable()) throw new java.lang.UnsupportedOperationException(); |
| this.fN = pN; |
| } |
| |
| @Override |
| public String patternName() { |
| return "org.eclipse.viatra.query.application.queries.eClassNamesKeyword"; |
| } |
| |
| @Override |
| public List<String> parameterNames() { |
| return EClassNamesKeywordMatch.parameterNames; |
| } |
| |
| @Override |
| public Object[] toArray() { |
| return new Object[]{fC, fN}; |
| } |
| |
| @Override |
| public EClassNamesKeywordMatch toImmutable() { |
| return isMutable() ? newMatch(fC, fN) : this; |
| } |
| |
| @Override |
| public String prettyPrint() { |
| StringBuilder result = new StringBuilder(); |
| result.append("\"c\"=" + prettyPrintValue(fC) + ", "); |
| |
| result.append("\"n\"=" + prettyPrintValue(fN) |
| ); |
| return result.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((fC == null) ? 0 : fC.hashCode()); |
| result = prime * result + ((fN == null) ? 0 : fN.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(final Object obj) { |
| if (this == obj) |
| return true; |
| if (!(obj instanceof EClassNamesKeywordMatch)) { // 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()); |
| } |
| EClassNamesKeywordMatch other = (EClassNamesKeywordMatch) obj; |
| if (fC == null) {if (other.fC != null) return false;} |
| else if (!fC.equals(other.fC)) return false; |
| if (fN == null) {if (other.fN != null) return false;} |
| else if (!fN.equals(other.fN)) return false; |
| return true; |
| } |
| |
| @Override |
| public EClassNamesKeywordQuerySpecification specification() { |
| try { |
| return EClassNamesKeywordQuerySpecification.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 EClassNamesKeywordMatch 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 pC the fixed value of pattern parameter c, or null if not bound. |
| * @param pN the fixed value of pattern parameter n, or null if not bound. |
| * @return the new, mutable (partial) match object. |
| * |
| */ |
| public static EClassNamesKeywordMatch newMutableMatch(final EClass pC, final String pN) { |
| return new Mutable(pC, pN); |
| } |
| |
| /** |
| * 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 pC the fixed value of pattern parameter c, or null if not bound. |
| * @param pN the fixed value of pattern parameter n, or null if not bound. |
| * @return the (partial) match object. |
| * |
| */ |
| public static EClassNamesKeywordMatch newMatch(final EClass pC, final String pN) { |
| return new Immutable(pC, pN); |
| } |
| |
| private static final class Mutable extends EClassNamesKeywordMatch { |
| Mutable(final EClass pC, final String pN) { |
| super(pC, pN); |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return true; |
| } |
| } |
| |
| private static final class Immutable extends EClassNamesKeywordMatch { |
| Immutable(final EClass pC, final String pN) { |
| super(pC, pN); |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return false; |
| } |
| } |
| } |