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Special Java 1.8+ Library with extended collection related functionality
/**
* Copyright (C) 2014-2020 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* 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 com.helger.collection.wrapped;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.CodingStyleguideUnaware;
import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.annotation.ReturnsMutableObject;
import com.helger.commons.collection.impl.ICommonsList;
/**
* This is a facade for a {@link List}. It may be used to wrap any kind of
* {@link List} and overwrite single methods, e.g. for logging.
*
* @author Philip Helger
* @param
* Element type
*/
@NotThreadSafe
public class WrappedList implements ICommonsList
{
@CodingStyleguideUnaware
private final List m_aSrc;
public WrappedList (@Nonnull final List aList)
{
m_aSrc = ValueEnforcer.notNull (aList, "List");
}
@Nonnull
@ReturnsMutableCopy
public WrappedList getClone ()
{
return new WrappedList <> (m_aSrc);
}
@Nonnull
@ReturnsMutableObject ("design")
@CodingStyleguideUnaware
protected List directGetSource ()
{
return m_aSrc;
}
@Nullable
public ELEMENTTYPE get (@Nonnegative final int nIndex)
{
return m_aSrc.get (nIndex);
}
public boolean add (@Nullable final ELEMENTTYPE aElement)
{
return m_aSrc.add (aElement);
}
public void add (@Nonnegative final int nIndex, @Nullable final ELEMENTTYPE aElement)
{
m_aSrc.add (nIndex, aElement);
}
public boolean addAll (@Nonnull final Collection extends ELEMENTTYPE> aElements)
{
return m_aSrc.addAll (aElements);
}
public boolean addAll (@Nonnegative final int nIndex, @Nonnull final Collection extends ELEMENTTYPE> aElements)
{
return m_aSrc.addAll (nIndex, aElements);
}
public void clear ()
{
m_aSrc.clear ();
}
public boolean contains (final Object aElement)
{
return m_aSrc.contains (aElement);
}
public boolean containsAll (final Collection > aElements)
{
return m_aSrc.containsAll (aElements);
}
public int indexOf (final Object aElement)
{
return m_aSrc.indexOf (aElement);
}
public boolean isEmpty ()
{
return m_aSrc.isEmpty ();
}
public Iterator iterator ()
{
return m_aSrc.iterator ();
}
public int lastIndexOf (final Object aElement)
{
return m_aSrc.lastIndexOf (aElement);
}
public ListIterator listIterator ()
{
return m_aSrc.listIterator ();
}
public ListIterator listIterator (final int nIndex)
{
return m_aSrc.listIterator (nIndex);
}
public boolean remove (final Object aElement)
{
return m_aSrc.remove (aElement);
}
public ELEMENTTYPE remove (final int nIndex)
{
return m_aSrc.remove (nIndex);
}
public boolean removeAll (final Collection > aElements)
{
return m_aSrc.removeAll (aElements);
}
public boolean retainAll (final Collection > aElements)
{
return m_aSrc.retainAll (aElements);
}
public ELEMENTTYPE set (@Nonnegative final int nIndex, final ELEMENTTYPE aElement)
{
return m_aSrc.set (nIndex, aElement);
}
@Nonnegative
public int size ()
{
return m_aSrc.size ();
}
@ReturnsMutableObject ("as defined by List")
public List subList (final int nFromIndex, final int nToIndex)
{
return m_aSrc.subList (nFromIndex, nToIndex);
}
public Object [] toArray ()
{
return m_aSrc.toArray ();
}
public ARRAYELEMENTTYPE [] toArray (final ARRAYELEMENTTYPE [] a)
{
return m_aSrc.toArray (a);
}
@Override
public boolean equals (final Object o)
{
return m_aSrc.equals (o);
}
@Override
public int hashCode ()
{
return m_aSrc.hashCode ();
}
@Override
public String toString ()
{
return m_aSrc.toString ();
}
}