VectorListAdapter.java

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package com.arcle.rmt.superwaba.util;

import waba.util.Vector;
import com.arcle.rmt.xplat.util.List;
import com.arcle.rmt.xplat.util.Iterator;

public class VectorListAdapter implements List {

    public VectorListAdapter(int initialCapacity) {
        this(new Vector(initialCapacity));
    }


    public VectorListAdapter(Vector v) {
        theVector = v;
    }

    public VectorListAdapter() {
        // waba.util.Vector is a final class, so there is no point in using
        // a factory method to instantiate it.
        this(new Vector());
    }

    //-----------------------------------------------------------------------
    // Own implementation

    public Vector getVector() {
        return theVector;
    }

    //-----------------------------------------------------------------------
    // Factory Methods

    protected Iterator createIterator() {
        return new IteratorImpl(this);
    }


    //-----------------------------------------------------------------------
    // Instance Variables

    private Vector theVector;

    //-----------------------------------------------------------------------
    // List implementations


    public int size() {
        return getVector().getCount();
    }


    public boolean isEmpty() {
        return size() == 0;
    }

    public boolean contains(Object o) {
        return indexOf(o) >= 0;
    }

    public Iterator iterator() {
        return createIterator();
    }


    public Object[] toArray() {
        return getVector().toObjectArray();
    }

    // Modification Operations

    public boolean add(Object o) {
        getVector().add(o);
        return true;
    }

    public boolean remove(Object o) {
        return getVector().del(o);
    }


    // Bulk Modification Operations

    public void clear() {
        getVector().clear();
    }

    // Comparison and hashing

    public boolean equals(Object o) {
        return getVector().equals(o);
    }

    public int hashCode() {
        return getVector().hashCode();
    }

    // Positional Access Operations

    public Object get(int index) {
        return getVector().get(index);
    }


    public Object set(int index, Object element) {
        Object prev = get(index);
        getVector().set(index, element);
        return prev;
    }


    public Object remove(int index) {
        Object prev = get(index);
        getVector().del(index);
        return prev;
    }

    // Search Operations

    public int indexOf(Object o) {
        return getVector().find(o);
    }

    // List Iterators

    // -- waba.ui.Vector does not support any of this

    // View

    // -- waba.ui.Vector does not support any of this

    //-----------------------------------------------------------------------
    // Inner Classes

    protected static class IteratorImpl implements Iterator {
        public IteratorImpl(VectorListAdapter v) {
            theList = v;
            curIndex = 0;
        }

        public boolean hasNext() {
            return curIndex < theList.size();
        }

        public Object next() {
            Object cur = theList.get(curIndex);
            curIndex++;
            return cur;
        }

        public void remove() {
            theList.remove(curIndex);
        }

        private int curIndex;
        private VectorListAdapter theList;
    }
}

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