content.java

来自「java案例开发一书的源代码」· Java 代码 · 共 82 行

/*
 * Content.java
 *
 * Created on 2003年11月5日, 下午8:48
 */

package romulus;

/**
 * This class is used to group the ContentItems.
 * @author  Romulus
 * @version 1.0
 */
public class Content implements RomulusNode{
    
    /** All the content items are in this Vector.*/
    private java.util.Vector contentitems = new java.util.Vector();
    
    /** content lable.*/
    private String label = null;
    
    /** ident.*/
    private String ident = null;
    
    /** Creates a new instance of Content */
    Content(String ident, String lable) throws RomulusException{
        if(ident == null){
            throw new RomulusException(RomulusException.IdentError);
        }

        this.ident = ident;
        this.label = lable;
    }
    
    /** get label*/
    public String getLable(){
        return label;
    }
    
    public String getIdent(){
        return ident;
    }
    
    /**
     * Add a content item to the content.
     * @param item the content item added.
     */
    void Add(ContentItem item){
        contentitems.add(item);
    }
    
    /**
     * Remove a content item from the content.
     * @param item the item will be removed.
     * @return true if content contents such content item.
     */
    boolean Remove(ContentItem item){
        return contentitems.remove(item);
    }
    
    /**
     * Get the iterator to browse the content.
     * @return the iterator.
     */
    public java.util.Iterator contentItemIterator(){
        return contentitems.iterator();
    }
    
    /**
     * @return the size of the content.
     */
    public int size(){
        return contentitems.size();
    }
    
    /** The method used to accept the Visitor to do something. */
    public void Accept(Visitor v) throws java.sql.SQLException, RomulusException {
        v.VisitContent(this);
    }
    
}