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path: root/main/java/gregtech/api/objects/GT_ArrayList.java
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package gregtech.api.objects;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

public class GT_ArrayList<E> extends ArrayList<E> {
	private static final long serialVersionUID = 1L;
	
	private final boolean mAllowNulls;
	
	public GT_ArrayList(boolean aAllowNulls, int aCapacity) {
		super(aCapacity);
		mAllowNulls = aAllowNulls;
	}
	
	public GT_ArrayList(boolean aAllowNulls, E... aArray) {
		super(Arrays.asList(aArray));
		mAllowNulls = aAllowNulls;
		if (!mAllowNulls) for (int i = 0; i < size(); i++) if (get(i) == null) remove(i--);
	}
	
    public GT_ArrayList(boolean aAllowNulls, Collection<? extends E> aList) {
    	super(aList);
		mAllowNulls = aAllowNulls;
		if (!mAllowNulls) for (int i = 0; i < size(); i++) if (get(i) == null) remove(i--);
    }
    
    @Override
	public E set(int aIndex, E aElement) {
    	if (mAllowNulls || aElement != null) return super.set(aIndex, aElement);
        return null;
    }
    
    @Override
	public boolean add(E aElement) {
    	if (mAllowNulls || aElement != null) return super.add(aElement);
        return false;
    }
    
    @Override
	public void add(int aIndex, E aElement) {
    	if (mAllowNulls || aElement != null) super.add(aIndex, aElement);
    }
    
    @Override
	public boolean addAll(Collection<? extends E> aList) {
        boolean rReturn = super.addAll(aList);
		if (!mAllowNulls) for (int i = 0; i < size(); i++) if (get(i) == null) remove(i--);
		return rReturn;
    }
    
    @Override
	public boolean addAll(int aIndex, Collection<? extends E> aList) {
    	boolean rReturn = super.addAll(aIndex, aList);
		if (!mAllowNulls) for (int i = 0; i < size(); i++) if (get(i) == null) remove(i--);
		return rReturn;
    }
}