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Utility classes, APIs and tools for Java
package net.sf.javagimmicks.collections8.builder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.function.Supplier;
/**
* A builder class for building {@link List}s using a fluent API with one
* chained call.
*
* @param
* the type of elements the resulting {@link List} can carry
* @param
* the type of the produced {@link List}
*/
public class ListBuilder> extends CollectionBuilder implements Supplier
{
/**
* Wraps a new {@link ListBuilder} around the given {@link List}
*
* @param internalList
* the {@link List} to wrap a new {@link ListBuilder} around
* @param
* the type of elements the resulting {@link List} can carry
* @param
* the type of the produced {@link List}
* @return the resulting {@link ListBuilder}
*/
public static > ListBuilder create(final T internalList)
{
return new ListBuilder(internalList);
}
/**
* Creates a new {@link ListBuilder} for building a new {@link ArrayList}
*
* @param
* the type of elements the resulting {@link ArrayList} can carry
* @return the resulting {@link ListBuilder}
*/
public static ListBuilder> createArrayList()
{
return create(new ArrayList());
}
/**
* Creates a new {@link ListBuilder} for building a new {@link ArrayList}
* with the given initial capacity
*
* @param initialCapcity
* the initial capacity to use for the wrapped {@link ArrayList}
* @param
* the type of elements the resulting {@link ArrayList} can carry
* @return the resulting {@link ListBuilder}
*/
public static ListBuilder> createArrayList(final int initialCapcity)
{
return create(new ArrayList(initialCapcity));
}
/**
* Creates a new {@link ListBuilder} for building a new {@link LinkedList}
*
* @param
* the type of elements the resulting {@link LinkedList} can carry
* @return the resulting {@link ListBuilder}
*/
public static ListBuilder> createLinkedList()
{
return create(new LinkedList());
}
/**
* Creates a new {@link ListBuilder} around a given internal {@link List}
*
* @param internalList
* the {@link List} to wrap around
*/
public ListBuilder(final T internalList)
{
super(internalList);
}
/**
* Calls {@link List#add(int, Object)} on the underlying {@link List} and
* returns itself
*
* @param index
* the index where to add the new element in the {@link List}
* @param e
* the element to add
* @return the {@link ListBuilder} itself
* @see List#add(int, Object)
*/
public ListBuilder add(final int index, final E e)
{
_internalCollection.add(index, e);
return this;
}
/**
* Calls {@link List#addAll(int, Collection)} on the underlying {@link List}
* and returns itself
*
* @param index
* the index where to add the new elements in the {@link List}
* @param c
* the {@link Collection} whose elements should be added
* @return the {@link ListBuilder} itself
* @see List#addAll(int, Collection)
*/
public ListBuilder addAll(final int index, final Collection c)
{
_internalCollection.addAll(index, c);
return this;
}
/**
* Adds any number of elements given as a variable argument list to the
* underlying {@link List} and returns itself
*
* @param index
* the index where to add the new elements in the {@link List}
* @param elements
* the list of elements to add
* @return the {@link ListBuilder} itself
* @see #addAll(int, Collection)
*/
@SuppressWarnings("unchecked")
public ListBuilder addAll(final int index, final E... elements)
{
return addAll(Arrays.asList(elements));
}
/**
* Calls {@link List#remove(int)} on the underlying {@link List} and returns
* itself
*
* @param index
* the index where to remove an element
* @return the {@link ListBuilder} itself
* @see List#remove(int)
*/
public ListBuilder remove(final int index)
{
_internalCollection.remove(index);
return this;
}
/**
* Calls {@link List#set(int, Object)} on the underlying {@link List} and
* returns itself
*
* @param index
* the index where to set the new element
* @param e
* the element to set in the underlying {@link List}
* @return the {@link ListBuilder} itself
* @see List#set(int, Object)
*/
public ListBuilder set(final int index, final E e)
{
_internalCollection.set(index, e);
return this;
}
/**
* Calls {@link List#add(Object)} on the underlying {@link List} and returns
* itself
*
* @param e
* the element to add
* @return the {@link ListBuilder} itself
* @see List#add(Object)
*/
@Override
public ListBuilder add(final E e)
{
return (ListBuilder) super.add(e);
}
/**
* Calls {@link List#addAll(Collection)} on the underlying {@link List} and
* returns itself
*
* @param c
* the {@link Collection} whose elements should be added
* @return the {@link ListBuilder} itself
* @see List#addAll(Collection)
*/
@Override
public ListBuilder addAll(final Collection c)
{
return (ListBuilder) super.addAll(c);
}
/**
* Adds any number of elements given as a variable argument list to the
* underlying {@link List} and returns itself
*
* @param elements
* the list of elements to add
* @return the {@link ListBuilder} itself
* @see #addAll(Collection)
*/
@Override
@SuppressWarnings("unchecked")
public ListBuilder addAll(final E... elements)
{
return (ListBuilder) super.addAll(elements);
}
/**
* Calls {@link List#clear()} on the underlying {@link List} and returns
* itself
*
* @return the {@link ListBuilder} itself
* @see List#clear()
*/
@Override
public ListBuilder clear()
{
return (ListBuilder) super.clear();
}
/**
* Calls {@link List#remove(Object)} on the underlying {@link List} and
* returns itself
*
* @param o
* the element to remove from the underlying {@link List}
* @return the {@link ListBuilder} itself
* @see List#remove(Object)
*/
@Override
public ListBuilder remove(final Object o)
{
return (ListBuilder) super.remove(o);
}
/**
* Calls {@link List#removeAll(Collection)} on the underlying {@link List}
* and returns itself
*
* @param c
* the {@link Collection} of elements to remove from the underlying
* {@link List}
* @return the {@link ListBuilder} itself
* @see List#removeAll(Collection)
*/
@Override
public ListBuilder removeAll(final Collection c)
{
return (ListBuilder) super.removeAll(c);
}
/**
* Removes any number of elements given as a variable argument list from the
* underlying {@link List} and returns itself
*
* @param elements
* the list of elements to remove
* @return the {@link ListBuilder} itself
* @see #removeAll(Collection)
*/
@Override
@SuppressWarnings("unchecked")
public ListBuilder removeAll(final E... elements)
{
return (ListBuilder) super.removeAll(elements);
}
/**
* Calls {@link List#retainAll(Collection)} on the underlying {@link List}
* and returns itself
*
* @param c
* the {@link Collection} of elements to retain in the underlying
* {@link List}
* @return the {@link ListBuilder} itself
* @see List#retainAll(Collection)
*/
@Override
public ListBuilder retainAll(final Collection c)
{
return (ListBuilder) super.retainAll(c);
}
/**
* Retains any number of elements given as a variable argument list in the
* underlying {@link List} and returns itself
*
* @param elements
* the list of elements to retain
* @return the {@link ListBuilder} itself
* @see #retainAll(Collection)
*/
@Override
@SuppressWarnings("unchecked")
public ListBuilder retainAll(final E... elements)
{
return (ListBuilder) super.retainAll(elements);
}
}
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