diff options
Diffstat (limited to 'plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java')
| -rw-r--r-- | plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java | 109 |
1 files changed, 58 insertions, 51 deletions
diff --git a/plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java b/plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java index 926741f4..781100a3 100644 --- a/plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java +++ b/plugins/org.eclipse.m2m.atl.emftvm/src/org/eclipse/m2m/atl/emftvm/util/LazyBag.java @@ -1,9 +1,10 @@ /******************************************************************************* * Copyright (c) 2011 Vrije Universiteit Brussel. + * Copyright (c) 2023 Dennis Wagelaar. * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 + * are made available under the terms of the Eclipse Public License v2.0 * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html + * https://www.eclipse.org/legal/epl-2.0/ * * Contributors: * Dennis Wagelaar, Vrije Universiteit Brussel - initial API and @@ -53,8 +54,8 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public boolean contains(Object o) { - return (object == null ? o == null : object.equals(o)) || + public boolean contains(final Object o) { + return (object == null ? o == null : object.equals(o)) || ((Collection<E>)dataSource).contains(o); } @@ -62,9 +63,9 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public int count(Object o) { - return (object == null ? o == null : object.equals(o)) ? 1 : 0 + - ((LazyCollection<E>)dataSource).count(o); + public int count(final Object o) { + return ((object == null ? o == null : object.equals(o)) ? 1 : 0) + + ((LazyCollection<E>) dataSource).count(o); } /** @@ -114,7 +115,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public boolean contains(Object o) { + public boolean contains(final Object o) { return ((Collection<E>)dataSource).contains(o) || other.contains(o); } @@ -122,7 +123,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public int count(Object object) { + public int count(final Object object) { return ((LazyCollection<E>)dataSource).count(object) + other.count(object); } @@ -154,7 +155,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * {@link LazyBag} that represents a range running from a first to last {@link Integer}. - * + * * @author <a href="mailto:dennis.wagelaar@vub.ac.be">Dennis Wagelaar</a> */ public static class IntegerRangeBag extends LazyBag<Integer> { @@ -164,7 +165,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * Creates a new {@link IntegerRangeBag}. - * + * * @param first * the first object of the range to include * @param last @@ -192,7 +193,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public boolean contains(Object o) { + public boolean contains(final Object o) { if (o instanceof Integer) { final Integer obj = (Integer) o; return (obj >= first && obj <= last); @@ -204,7 +205,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public int count(Object object) { + public int count(final Object object) { // All elements of a range are unique return contains(object) ? 1 : 0; } @@ -238,7 +239,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * {@link LazyBag} that represents a range running from a first to last {@link Long}. - * + * * @author <a href="mailto:dennis.wagelaar@vub.ac.be">Dennis Wagelaar</a> */ public static class LongRangeBag extends LazyBag<Long> { @@ -248,7 +249,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * Creates a new {@link LongRangeBag}. - * + * * @param first * the first object of the range to include * @param last @@ -276,7 +277,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public boolean contains(Object o) { + public boolean contains(final Object o) { if (o instanceof Long) { final Long obj = (Long) o; return (obj >= first && obj <= last); @@ -288,7 +289,7 @@ public class LazyBag<E> extends LazyCollection<E> { * {@inheritDoc} */ @Override - public int count(Object object) { + public int count(final Object object) { // All elements of a range are unique return contains(object) ? 1 : 0; } @@ -343,7 +344,7 @@ public class LazyBag<E> extends LazyCollection<E> { sOcc = new HashMap<E, Integer>(s.occurrences); } else { sOcc = new HashMap<E, Integer>(); - for (E e : s) { + for (final E e : s) { if (sOcc.containsKey(e)) { sOcc.put(e, sOcc.get(e) + 1); } else { @@ -356,6 +357,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * {@inheritDoc} */ + @Override public boolean hasNext() { synchronized (cache) { if (i < cache.size()) { @@ -382,6 +384,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * {@inheritDoc} */ + @Override public E next() { if (!nextSet) { next = inner.next(); // support null values for next @@ -396,7 +399,7 @@ public class LazyBag<E> extends LazyCollection<E> { updateCache(next); return next; } - + } /** @@ -410,7 +413,7 @@ public class LazyBag<E> extends LazyCollection<E> { * Creates a {@link LazyBag} around <code>dataSource</code>. * @param dataSource the underlying collection */ - public LazyBag(Iterable<E> dataSource) { + public LazyBag(final Iterable<E> dataSource) { super(dataSource); } @@ -436,25 +439,25 @@ public class LazyBag<E> extends LazyCollection<E> { @Override public boolean equals(final Object o) { if (o == this) { - return true; + return true; } if (!(o instanceof LazyCollection<?>)) { - return false; - } - try { - final LazyCollection<E> other = (LazyCollection<E>)o; - final LazySet<E> keys = asSet().union(other.asSet()); - for (E e : keys) { - if (count(e) != other.count(e)) { - return false; - } - } - return true; - } catch (ClassCastException unused) { - return false; - } catch (NullPointerException unused) { - return false; - } + return false; + } + try { + final LazyCollection<E> other = (LazyCollection<E>)o; + final LazySet<E> keys = asSet().union(other.asSet()); + for (final E e : keys) { + if (count(e) != other.count(e)) { + return false; + } + } + return true; + } catch (final ClassCastException unused) { + return false; + } catch (final NullPointerException unused) { + return false; + } } /** @@ -463,10 +466,10 @@ public class LazyBag<E> extends LazyCollection<E> { @Override public int hashCode() { int hashCode = 0; - for (E obj : this) { - if (obj != null) { - hashCode += obj.hashCode(); - } + for (final E obj : this) { + if (obj != null) { + hashCode += obj.hashCode(); + } } return hashCode; } @@ -474,6 +477,7 @@ public class LazyBag<E> extends LazyCollection<E> { /** * {@inheritDoc} */ + @Override public String asString(final ExecEnv env) { return appendElements(new StringBuffer("Bag{"), env).append('}').toString(); } @@ -547,6 +551,7 @@ public class LazyBag<E> extends LazyCollection<E> { * @param object the object to include * @return The bag containing all elements of self plus <code>object</code>. */ + @Override public LazyBag<E> including(final E object) { return new IncludingBag<E>(object, this); } @@ -556,7 +561,7 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param object * the object to include * @param index @@ -573,7 +578,7 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param coll * the collection to include * @return The collection containing all elements of self plus <code>coll</code>. @@ -588,7 +593,7 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param coll * the collection to include * @param index @@ -606,11 +611,12 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param object * the object to exclude * @return The bag containing all elements of self apart from all occurrences of <code>object</code>. */ + @Override public LazyBag<E> excluding(final Object object) { return new LazyBag<E>(this) { @Override @@ -618,7 +624,7 @@ public class LazyBag<E> extends LazyCollection<E> { if (dataSource == null) { return Collections.unmodifiableCollection(cache).iterator(); } - return new ExcludingIterator(object); + return new ExcludingIterator(object); } }; } @@ -628,7 +634,7 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param coll * the collection to exclude * @return The collection containing all elements of self minus <code>coll</code>. @@ -652,7 +658,7 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @return <b>if</b> self.type.elementType.oclIsKindOf(CollectionType) <b>then</b><br> * self->iterate(c; acc : Bag() = Bag{} |<br> * acc->union(c->asBag() ) )<br> @@ -684,13 +690,14 @@ public class LazyBag<E> extends LazyCollection<E> { * <p> * <i>Lazy operation.</i> * </p> - * + * * @param first * the first object of the range to include * @param last * the last object of the range to include * @return The bag containing all elements of self plus the bag of <code>first</code> running to <code>last</code> */ + @Override @SuppressWarnings("unchecked") public LazyBag<E> includingRange(final E first, final E last) { if (first instanceof Integer && last instanceof Integer) { @@ -785,12 +792,12 @@ public class LazyBag<E> extends LazyCollection<E> { final Iterator<Comparable<Object>> sortingKeys = new CollectIterator<Comparable<Object>>(inner, body, parentFrame); final Object[] innerCopy = inner.toArray(); final Map<Object, Comparable<Object>> elementsToKeys = new HashMap<Object, Comparable<Object>>(innerCopy.length); - for (Object o : innerCopy) { + for (final Object o : innerCopy) { elementsToKeys.put(o, sortingKeys.next()); } assert !sortingKeys.hasNext(); Arrays.sort(innerCopy, new Comparator<Object>() { - public int compare(Object o1, Object o2) { + public int compare(final Object o1, final Object o2) { return elementsToKeys.get(o1).compareTo(elementsToKeys.get(o2)); } }); |