Android Open Source - music-tag Node Item

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License

The source code is released under:

Apache License

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Java Source Code

package binauld.pierre.musictag.item;
//from  w  w w.j  a v  a2 s. c om

import java.util.ArrayList;
import java.util.List;

import binauld.pierre.musictag.collection.MultipleBufferedList;

/**
 * Represent a folder in a library.
 */
public abstract class NodeItem extends ChildItem {

    private MultipleBufferedList<LibraryItem> children;
    private LoadingState state;
    private int invalidItemCount;

    public NodeItem() {
        this(null);
    }

    public NodeItem(NodeItem parent) {
        this.parent = parent;
        this.children = new MultipleBufferedList<>(new MultipleBufferedList.ListFactory<LibraryItem>() {
            public List<LibraryItem> buildEmptyList() {
                return new ArrayList<>();
            }
        });
        this.state = LoadingState.NOT_LOADED;
    }

    @Override
    public boolean isAudioItem() {
        return false;
    }

    /**
     * Get the maximum number of possible children.
     * @return The maximum number of possible children.
     */
    public abstract int getMaxChildren();

    /**
     * Get the number of children node.
     * @return The number of children node.
     */
    public int size() {
        return children.size();
    }

    /**
     * Get a child.
     * @param i Index of the child.
     * @return A child.
     */
    public LibraryItem getChild(int i) {
        return children.get(i);
    }

    /**
     * Get the loading state from the item.
     * @return The loading state.
     */
    public LoadingState getState() {
        return state;
    }

    /**
     * Set the loading state to the item.
     * @param state The loading state.
     */
    public void setState(LoadingState state) {
        this.state = state;
    }

    /**
     * Get the list of children for modification.
     * @return The list of children
     */
    public MultipleBufferedList<LibraryItem> getChildren() {
        return children;
    }

    /**
     * Set the count of invalid item found by a loader.
     * @param invalidItemCount The count of invalid item found.
     */
    public void setInvalidItemCount(int invalidItemCount) {
        this.invalidItemCount = invalidItemCount;
    }
    /**
     * Get the count of invalid item found by a loader.
     * @return The count of invalid item found.
     */
    public int getInvalidItemCount() {
        return invalidItemCount;
    }
}

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