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package org.apache.cayenne.project;

/**
 * ProjectTraversalHandler defines callback methods that are
 * invoked during project tree traversal.
 * 
 */
public interface ProjectTraversalHandler {
    /** 
     * Invoked when a node is read during project tree traversal.
     */
    public void projectNode(ProjectPath nodePath);

    /**
     * Invoked when the children of a project node are
     * about to be scanned. If handler returns false, children
     * of the node (and trheir children) will be skipped. This
     * allows handler to control traversal behavior by eliminating 
     * subtrees.
     */
    public boolean shouldReadChildren(Object node, ProjectPath parentPath);
}
