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/*
	* Copyright (C) 2002-2017 Sebastiano Vigna
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	*     http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
package it.unimi.dsi.fastutil.shorts;
import java.util.AbstractCollection;
/** An abstract class providing basic methods for collections implementing a type-specific interface.
	*
	* 

In particular, this class provide {@link #iterator()}, add(), {@link #remove(Object)} and * {@link #contains(Object)} methods that just call the type-specific counterpart. * *

Warning: Because of a name clash between the list and collection interfaces * the type-specific deletion method of a type-specific abstract * collection is rem(), rather then remove(). A * subclass must thus override rem(), rather than * remove(), to make all inherited methods work properly. */ public abstract class AbstractShortCollection extends AbstractCollection implements ShortCollection { protected AbstractShortCollection() {} /** {@inheritDoc} * *

This implementation delegates to the new covariantly stronger generic method {@link #iterator()}. * @deprecated As of fastutil 5, replaced by {@link #iterator()}. */ @Deprecated @Override public ShortIterator shortIterator() { return iterator(); } @Override public abstract ShortIterator iterator(); /** {@inheritDoc} * *

This implementation always throws an {@link UnsupportedOperationException}. */ @Override public boolean add(final short k) { throw new UnsupportedOperationException(); } /** {@inheritDoc} * *

This implementation iterates over the elements in the collection, * looking for the specified element. */ public boolean contains(final short k) { final ShortIterator iterator = iterator(); while (iterator.hasNext()) if (k == iterator.nextShort()) return true; return false; } /** {@inheritDoc} * *

This implementation iterates over the elements in the collection, * looking for the specified element and tries to remove it. */ @Override public boolean rem(final short k) { final ShortIterator iterator = iterator(); while (iterator.hasNext()) if (k == iterator.nextShort()) { iterator.remove(); return true; } return false; } /** {@inheritDoc} * *

This implementation delegates to the corresponding type-specific method. * @deprecated Please use the corresponding type-specific method instead. */ @Deprecated @Override public boolean add(final Short o) { return add(o.shortValue()); } /** {@inheritDoc} * *

This implementation delegates to the corresponding type-specific method. * @deprecated Please use the corresponding type-specific method instead. */ @Deprecated @Override public boolean contains(final Object o) { if (o == null) return false; return contains(((((Short)(o)).shortValue()))); } /** {@inheritDoc} *

This implementation delegates to the {@code rem()} method. * @deprecated Please use (and implement) the {@code rem()} method instead. */ @Deprecated @Override public boolean remove(final Object o) { if (o == null) return false; return rem(((((Short)(o)).shortValue()))); } @Override public short[] toArray(short a[]) { if (a == null || a.length < size()) a = new short[size()]; ShortIterators.unwrap(iterator(), a); return a; } @Override public short[] toShortArray() { return toShortArray(null); } /* {@inheritDoc} * @deprecated Please use {@code toArray()} instead—this method is redundant. */ @Deprecated @Override public short[] toShortArray(final short a[]) { return toArray(a); } @Override public boolean addAll(final ShortCollection c) { boolean retVal = false; for(final ShortIterator i = c.iterator(); i.hasNext();) if (add(i.nextShort())) retVal = true; return retVal; } @Override public boolean containsAll(final ShortCollection c) { for(final ShortIterator i = c.iterator(); i.hasNext();) if (! contains(i.nextShort())) return false; return true; } @Override public boolean removeAll(final ShortCollection c) { boolean retVal = false; for(final ShortIterator i = c.iterator(); i.hasNext();) if (rem(i.nextShort())) retVal = true; return retVal; } @Override public boolean retainAll(final ShortCollection c) { boolean retVal = false; for(final ShortIterator i = iterator(); i.hasNext();) if (! c.contains(i.nextShort())) { i.remove(); retVal = true; } return retVal; } @Override public String toString() { final StringBuilder s = new StringBuilder(); final ShortIterator i = iterator(); int n = size(); short k; boolean first = true; s.append("{"); while(n-- != 0) { if (first) first = false; else s.append(", "); k = i.nextShort(); s.append(String.valueOf(k)); } s.append("}"); return s.toString(); } }





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