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/* |
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* %W% %E% |
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* |
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* Copyright 2004 Sun Microsystems, Inc. All rights reserved. |
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* Copyright 2005 Sun Microsystems, Inc. All rights reserved. |
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* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. |
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*/ |
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/** |
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* Adds the specified element to this set if it is not already present. |
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* |
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* @param o element to be added to this set. |
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* @param e element to be added to this set. |
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* @return <tt>true</tt> if the set did not already contain the specified |
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* element. |
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* |
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* @throws ClassCastException if the specified object cannot be compared |
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* with the elements currently in the set. |
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* @throws NullPointerException if o is <tt>null</tt> and this map |
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* @throws NullPointerException if e is <tt>null</tt> and this map |
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* uses natural ordering and is non-empty, or its comparator does |
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* not tolerate <tt>null</tt> keys. |
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*/ |
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public boolean add(E o) { |
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return m.put(o, PRESENT)==null; |
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public boolean add(E e) { |
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return m.put(e, PRESENT)==null; |
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} |
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/** |
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* |
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* @throws ClassCastException if the elements provided cannot be compared |
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* with the elements currently in the set. |
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* @throws NullPointerException of the specified collection is |
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* @throws NullPointerException if the specified collection is |
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* <tt>null</tt> or if any element is <tt>null</tt> and this map |
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* uses natural ordering, or its comparator does not tolerate |
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* <tt>null</tt> keys. |
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} |
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/** |
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* Returns a view of the portion of this set whose elements range from |
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* <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, exclusive. (If |
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* <tt>fromElement</tt> and <tt>toElement</tt> are equal, the returned |
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* sorted set is empty.) The returned sorted set is backed by this set, |
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* so changes in the returned sorted set are reflected in this set, and |
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* vice-versa. The returned sorted set supports all optional Set |
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* operations.<p> |
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* Returns a view of the portion of this set whose elements range |
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* from <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, |
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* exclusive. (If <tt>fromElement</tt> and <tt>toElement</tt> are |
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* equal, the returned navigable set is empty.) The returned |
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* navigable set is backed by this set, so changes in the returned |
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* navigable set are reflected in this set, and vice-versa. The |
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* returned navigable set supports all optional Set operations.<p> |
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* |
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* The sorted set returned by this method will throw an |
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* The navigable set returned by this method will throw an |
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* <tt>IllegalArgumentException</tt> if the user attempts to insert an |
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* element outside the specified range.<p> |
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* |
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* Note: this method always returns a <i>half-open range</i> (which |
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* includes its low endpoint but not its high endpoint). If you need a |
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* <i>closed range</i> (which includes both endpoints), and the element |
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* type allows for calculation of the successor of a specified value, |
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* merely request the subrange from <tt>lowEndpoint</tt> to |
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* <tt>successor(highEndpoint)</tt>. For example, suppose that <tt>s</tt> |
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* is a sorted set of strings. The following idiom obtains a view |
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* containing all of the strings in <tt>s</tt> from <tt>low</tt> to |
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* <tt>high</tt>, inclusive: <pre> |
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* NavigableSet sub = s.subSet(low, high+"\0"); |
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* Note: this method always returns a <i>half-open range</i> |
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* (which includes its low endpoint but not its high endpoint). |
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* If you need a <i>closed range</i> (which includes both |
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* endpoints), and the element type allows for calculation of the |
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* successor of a specified value, merely request the subrange |
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* from <tt>lowEndpoint</tt> to <tt>successor(highEndpoint)</tt>. |
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* For example, suppose that <tt>s</tt> is a navigable set of |
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* strings. The following idiom obtains a view containing all of |
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* the strings in <tt>s</tt> from <tt>low</tt> to <tt>high</tt>, |
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* inclusive: |
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* <pre> NavigableSet sub = s.navigableSubSet(low, high+"\0"); |
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* </pre> |
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* |
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* A similar technique can be used to generate an <i>open range</i> (which |
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* contains neither endpoint). The following idiom obtains a view |
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* containing all of the strings in <tt>s</tt> from <tt>low</tt> to |
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* <tt>high</tt>, exclusive: <pre> |
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* NavigableSet sub = s.subSet(low+"\0", high); |
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* NavigableSet sub = s.navigableSubSet(low+"\0", high); |
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* </pre> |
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* |
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* @param fromElement low endpoint (inclusive) of the subSet. |
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* @param toElement high endpoint (exclusive) of the subSet. |
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* @param fromElement low endpoint (inclusive) of the range. |
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* @param toElement high endpoint (exclusive) of the range. |
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* @return a view of the portion of this set whose elements range from |
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* <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, |
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* exclusive. |
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* order, or its comparator does not tolerate <tt>null</tt> |
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* elements. |
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*/ |
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< |
public NavigableSet<E> subSet(E fromElement, E toElement) { |
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return new TreeSet<E>(m.subMap(fromElement, toElement)); |
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public NavigableSet<E> navigableSubSet(E fromElement, E toElement) { |
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return new TreeSet<E>(m.navigableSubMap(fromElement, toElement)); |
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} |
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/** |
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* Returns a view of the portion of this set whose elements are strictly |
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* less than <tt>toElement</tt>. The returned sorted set is backed by |
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* this set, so changes in the returned sorted set are reflected in this |
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* set, and vice-versa. The returned sorted set supports all optional set |
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* operations.<p> |
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* |
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* The sorted set returned by this method will throw an |
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< |
* <tt>IllegalArgumentException</tt> if the user attempts to insert an |
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* element greater than or equal to <tt>toElement</tt>.<p> |
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* |
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* Note: this method always returns a view that does not contain its |
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* (high) endpoint. If you need a view that does contain this endpoint, |
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* and the element type allows for calculation of the successor of a |
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* specified value, merely request a headSet bounded by |
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< |
* <tt>successor(highEndpoint)</tt>. For example, suppose that <tt>s</tt> |
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* is a sorted set of strings. The following idiom obtains a view |
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* containing all of the strings in <tt>s</tt> that are less than or equal |
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* to <tt>high</tt>: <pre> NavigableSet head = s.headSet(high+"\0");</pre> |
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* Returns a view of the portion of this set whose elements are |
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> |
* strictly less than <tt>toElement</tt>. The returned navigable |
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* set is backed by this set, so changes in the returned navigable |
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> |
* set are reflected in this set, and vice-versa. The returned |
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> |
* navigable set supports all optional set operations.<p> |
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> |
* |
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* The navigable set returned by this method will throw an |
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* <tt>IllegalArgumentException</tt> if the user attempts to |
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* insert an element greater than or equal to |
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> |
* <tt>toElement</tt>.<p> |
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* |
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> |
* Note: this method always returns a view that does not contain |
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> |
* its (high) endpoint. If you need a view that does contain this |
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> |
* endpoint, and the element type allows for calculation of the |
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> |
* successor of a specified value, merely request a headSet |
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> |
* bounded by <tt>successor(highEndpoint)</tt>. For example, |
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> |
* suppose that <tt>s</tt> is a navigable set of strings. The |
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> |
* following idiom obtains a view containing all of the strings in |
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> |
* <tt>s</tt> that are less than or equal to <tt>high</tt>: |
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> |
* <pre> NavigableSet head = s.navigableHeadSet(high+"\0");</pre> |
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* |
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* @param toElement high endpoint (exclusive) of the headSet. |
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* @return a view of the portion of this set whose elements are strictly |
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* less than toElement. |
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* less than <tt>toElement</tt>. |
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* @throws ClassCastException if <tt>toElement</tt> is not compatible |
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* with this set's comparator (or, if the set has no comparator, |
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* if <tt>toElement</tt> does not implement <tt>Comparable</tt>). |
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* @throws IllegalArgumentException if this set is itself a subSet, |
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* headSet, or tailSet, and <tt>toElement</tt> is not within the |
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* specified range of the subSet, headSet, or tailSet. |
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* @throws IllegalArgumentException if this set is itself a subset, |
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> |
* and <tt>toElement</tt> is not within the |
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* specified range of the subset. |
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* @throws NullPointerException if <tt>toElement</tt> is <tt>null</tt> and |
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* this set uses natural ordering, or its comparator does |
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* not tolerate <tt>null</tt> elements. |
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*/ |
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public NavigableSet<E> headSet(E toElement) { |
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return new TreeSet<E>(m.headMap(toElement)); |
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> |
public NavigableSet<E> navigableHeadSet(E toElement) { |
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return new TreeSet<E>(m.navigableHeadMap(toElement)); |
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} |
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/** |
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* Returns a view of the portion of this set whose elements are |
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< |
* greater than or equal to <tt>fromElement</tt>. The returned sorted set |
| 375 |
< |
* is backed by this set, so changes in the returned sorted set are |
| 376 |
< |
* reflected in this set, and vice-versa. The returned sorted set |
| 377 |
< |
* supports all optional set operations.<p> |
| 374 |
> |
* greater than or equal to <tt>fromElement</tt>. The returned |
| 375 |
> |
* navigable set is backed by this set, so changes in the returned |
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> |
* navigable set are reflected in this set, and vice-versa. The |
| 377 |
> |
* returned navigable set supports all optional set operations.<p> |
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* |
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< |
* The sorted set returned by this method will throw an |
| 379 |
> |
* The navigable set returned by this method will throw an |
| 380 |
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* <tt>IllegalArgumentException</tt> if the user attempts to insert an |
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* element less than <tt>fromElement</tt>. |
| 382 |
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* |
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* Note: this method always returns a view that contains its (low) |
| 384 |
< |
* endpoint. If you need a view that does not contain this endpoint, and |
| 385 |
< |
* the element type allows for calculation of the successor of a specified |
| 386 |
< |
* value, merely request a tailSet bounded by |
| 387 |
< |
* <tt>successor(lowEndpoint)</tt>. For example, suppose that <tt>s</tt> |
| 388 |
< |
* is a sorted set of strings. The following idiom obtains a view |
| 389 |
< |
* containing all of the strings in <tt>s</tt> that are strictly greater |
| 390 |
< |
* than <tt>low</tt>: <pre> |
| 391 |
< |
* NavigableSet tail = s.tailSet(low+"\0"); |
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> |
* endpoint. If you need a view that does not contain this |
| 385 |
> |
* endpoint, and the element type allows for calculation of the |
| 386 |
> |
* successor of a specified value, merely request a tailSet |
| 387 |
> |
* bounded by <tt>successor(lowEndpoint)</tt>. For example, |
| 388 |
> |
* suppose that <tt>s</tt> is a navigable set of strings. The |
| 389 |
> |
* following idiom obtains a view containing all of the strings in |
| 390 |
> |
* <tt>s</tt> that are strictly greater than <tt>low</tt>: |
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> |
* <pre> NavigableSet tail = s.navigableTailSet(low+"\0"); |
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* </pre> |
| 393 |
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* |
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* @param fromElement low endpoint (inclusive) of the tailSet. |
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* @throws ClassCastException if <tt>fromElement</tt> is not compatible |
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* with this set's comparator (or, if the set has no comparator, |
| 399 |
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* if <tt>fromElement</tt> does not implement <tt>Comparable</tt>). |
| 400 |
< |
* @throws IllegalArgumentException if this set is itself a subSet, |
| 401 |
< |
* headSet, or tailSet, and <tt>fromElement</tt> is not within the |
| 402 |
< |
* specified range of the subSet, headSet, or tailSet. |
| 400 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 401 |
> |
* and <tt>fromElement</tt> is not within the |
| 402 |
> |
* specified range of the subset. |
| 403 |
> |
* @throws NullPointerException if <tt>fromElement</tt> is <tt>null</tt> |
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> |
* and this set uses natural ordering, or its comparator does |
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> |
* not tolerate <tt>null</tt> elements. |
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> |
*/ |
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> |
public NavigableSet<E> navigableTailSet(E fromElement) { |
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> |
return new TreeSet<E>(m.navigableTailMap(fromElement)); |
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> |
} |
| 410 |
> |
|
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> |
|
| 412 |
> |
/** |
| 413 |
> |
* Equivalent to <tt>navigableSubSet</tt> but with a return |
| 414 |
> |
* type conforming to the <tt>SortedSet</tt> interface. |
| 415 |
> |
* @param fromElement low endpoint (inclusive) of the range. |
| 416 |
> |
* @param toElement high endpoint (exclusive) of the range. |
| 417 |
> |
* @return a view of the portion of this set whose elements range from |
| 418 |
> |
* <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, |
| 419 |
> |
* exclusive. |
| 420 |
> |
* @throws ClassCastException if <tt>fromElement</tt> and |
| 421 |
> |
* <tt>toElement</tt> cannot be compared to one another using |
| 422 |
> |
* this set's comparator (or, if the set has no comparator, |
| 423 |
> |
* using natural ordering). |
| 424 |
> |
* @throws IllegalArgumentException if <tt>fromElement</tt> is greater than |
| 425 |
> |
* <tt>toElement</tt>. |
| 426 |
> |
* @throws NullPointerException if <tt>fromElement</tt> or |
| 427 |
> |
* <tt>toElement</tt> is <tt>null</tt> and this set uses natural |
| 428 |
> |
* order, or its comparator does not tolerate <tt>null</tt> |
| 429 |
> |
* elements. |
| 430 |
> |
*/ |
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> |
public SortedSet<E> subSet(E fromElement, E toElement) { |
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> |
return new TreeSet<E>(m.navigableSubMap(fromElement, toElement)); |
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> |
} |
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> |
|
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> |
/** |
| 436 |
> |
* Equivalent to <tt>navigableHeadSet</tt> but with a return |
| 437 |
> |
* type conforming to the <tt>SortedSet</tt> interface. |
| 438 |
> |
* |
| 439 |
> |
* @param toElement high endpoint (exclusive) of the headSet. |
| 440 |
> |
* @return a view of the portion of this set whose elements are strictly |
| 441 |
> |
* less than <tt>toElement</tt>. |
| 442 |
> |
* @throws ClassCastException if <tt>toElement</tt> is not compatible |
| 443 |
> |
* with this set's comparator (or, if the set has no comparator, |
| 444 |
> |
* if <tt>toElement</tt> does not implement <tt>Comparable</tt>). |
| 445 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 446 |
> |
* and <tt>toElement</tt> is not within the |
| 447 |
> |
* specified range of the subset. |
| 448 |
> |
* @throws NullPointerException if <tt>toElement</tt> is <tt>null</tt> and |
| 449 |
> |
* this set uses natural ordering, or its comparator does |
| 450 |
> |
* not tolerate <tt>null</tt> elements. |
| 451 |
> |
*/ |
| 452 |
> |
public SortedSet<E> headSet(E toElement) { |
| 453 |
> |
return new TreeSet<E>(m.navigableHeadMap(toElement)); |
| 454 |
> |
} |
| 455 |
> |
|
| 456 |
> |
/** |
| 457 |
> |
* Equivalent to <tt>navigableTailSet</tt> but with a return |
| 458 |
> |
* type conforming to the <tt>SortedSet</tt> interface. |
| 459 |
> |
* @param fromElement low endpoint (inclusive) of the tailSet. |
| 460 |
> |
* @return a view of the portion of this set whose elements are |
| 461 |
> |
* greater than or equal to <tt>fromElement</tt>. |
| 462 |
> |
* @throws ClassCastException if <tt>fromElement</tt> is not compatible |
| 463 |
> |
* with this set's comparator (or, if the set has no comparator, |
| 464 |
> |
* if <tt>fromElement</tt> does not implement <tt>Comparable</tt>). |
| 465 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 466 |
> |
* and <tt>fromElement</tt> is not within the |
| 467 |
> |
* specified range of the subset. |
| 468 |
|
* @throws NullPointerException if <tt>fromElement</tt> is <tt>null</tt> |
| 469 |
|
* and this set uses natural ordering, or its comparator does |
| 470 |
|
* not tolerate <tt>null</tt> elements. |
| 471 |
|
*/ |
| 472 |
< |
public NavigableSet<E> tailSet(E fromElement) { |
| 473 |
< |
return new TreeSet<E>(m.tailMap(fromElement)); |
| 472 |
> |
public SortedSet<E> tailSet(E fromElement) { |
| 473 |
> |
return new TreeSet<E>(m.navigableTailMap(fromElement)); |
| 474 |
|
} |
| 475 |
|
|
| 476 |
|
/** |
| 511 |
|
* Returns an element greater than or equal to the given element, or |
| 512 |
|
* <tt>null</tt> if there is no such element. |
| 513 |
|
* |
| 514 |
< |
* @param o the value to match |
| 514 |
> |
* @param e the value to match |
| 515 |
|
* @return an element greater than or equal to given element, or |
| 516 |
|
* <tt>null</tt> if there is no such element. |
| 517 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 517 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 518 |
|
* currently in the set. |
| 519 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 519 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 520 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 521 |
|
* not tolerate <tt>null</tt> keys. |
| 522 |
|
*/ |
| 523 |
< |
public E ceiling(E o) { |
| 524 |
< |
return m.ceilingKey(o); |
| 523 |
> |
public E ceiling(E e) { |
| 524 |
> |
return m.ceilingKey(e); |
| 525 |
|
} |
| 526 |
|
|
| 527 |
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/** |
| 528 |
|
* Returns an element strictly less than the given element, or |
| 529 |
|
* <tt>null</tt> if there is no such element. |
| 530 |
|
* |
| 531 |
< |
* @param o the value to match |
| 531 |
> |
* @param e the value to match |
| 532 |
|
* @return the greatest element less than the given element, or |
| 533 |
|
* <tt>null</tt> if there is no such element. |
| 534 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 534 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 535 |
|
* currently in the set. |
| 536 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 536 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 537 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 538 |
|
* not tolerate <tt>null</tt> keys. |
| 539 |
|
*/ |
| 540 |
< |
public E lower(E o) { |
| 541 |
< |
return m.lowerKey(o); |
| 540 |
> |
public E lower(E e) { |
| 541 |
> |
return m.lowerKey(e); |
| 542 |
|
} |
| 543 |
|
|
| 544 |
|
/** |
| 545 |
|
* Returns an element less than or equal to the given element, or |
| 546 |
|
* <tt>null</tt> if there is no such element. |
| 547 |
|
* |
| 548 |
< |
* @param o the value to match |
| 548 |
> |
* @param e the value to match |
| 549 |
|
* @return the greatest element less than or equal to given |
| 550 |
|
* element, or <tt>null</tt> if there is no such element. |
| 551 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 551 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 552 |
|
* currently in the set. |
| 553 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 553 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 554 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 555 |
|
* not tolerate <tt>null</tt> keys. |
| 556 |
|
*/ |
| 557 |
< |
public E floor(E o) { |
| 558 |
< |
return m.floorKey(o); |
| 557 |
> |
public E floor(E e) { |
| 558 |
> |
return m.floorKey(e); |
| 559 |
|
} |
| 560 |
|
|
| 561 |
|
/** |
| 562 |
|
* Returns an element strictly greater than the given element, or |
| 563 |
|
* <tt>null</tt> if there is no such element. |
| 564 |
|
* |
| 565 |
< |
* @param o the value to match |
| 565 |
> |
* @param e the value to match |
| 566 |
|
* @return the least element greater than the given element, or |
| 567 |
|
* <tt>null</tt> if there is no such element. |
| 568 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 568 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 569 |
|
* currently in the set. |
| 570 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 570 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 571 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 572 |
|
* not tolerate <tt>null</tt> keys. |
| 573 |
|
*/ |
| 574 |
< |
public E higher(E o) { |
| 575 |
< |
return m.higherKey(o); |
| 574 |
> |
public E higher(E e) { |
| 575 |
> |
return m.higherKey(e); |
| 576 |
|
} |
| 577 |
|
|
| 578 |
|
/** |
