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A version of S-Match semantic matching framework for Open Data

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package it.unitn.disi.smatch.data.trees;

import java.util.Iterator;
import java.util.List;

/**
 * Base context interface.
 *
 * @author Aliaksandr Autayeu
 */
public interface IBaseContext {
    /**
     * Sets a new root for the context.
     *
     * @param root a new root
     */
    void setRoot(E root);

    /**
     * Returns the root of the context.
     *
     * @return the root of the context
     */
    E getRoot();

    /**
     * Returns true if the context has a root node.
     *
     * @return true if the context has a root node
     */
    boolean hasRoot();

    /**
     * Creates a node.
     *
     * @return a node.
     */
    E createNode();

    /**
     * Creates a node with a name.
     *
     * @param name a name for a node
     * @return a node.
     */
    E createNode(String name);

    /**
     * Creates a root node.
     *
     * @return a root node.
     */
    E createRoot();

    /**
     * Creates a root node with a name.
     *
     * @param name a name for the root
     * @return the root node
     */
    E createRoot(String name);

    /**
     * Returns iterator over all context nodes.
     *
     * @return iterator over all context nodes
     */
    Iterator getNodes();

    /**
     * Returns unmodifiable list of all context nodes.
     *
     * @return unmodifiable list of all context nodes
     */
    List getNodesList();
}