Copyright (c) 2008, http://www.snakeyaml.org
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
/**
 * Copyright (c) 2008, http://www.snakeyaml.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.yaml.snakeyaml.events;

import org.yaml.snakeyaml.error.Mark;

Base class for all events that mark the beginning of a node.
/**
 * Base class for all events that mark the beginning of a node.
 */
public abstract class NodeEvent extends Event {

    private final String anchor;

    public NodeEvent(String anchor, Mark startMark, Mark endMark) {
        super(startMark, endMark);
        this.anchor = anchor;
    }

    
Node anchor by which this node might later be referenced by a AliasEvent. 
 Note that AliasEvents are by it self NodeEvents and
use this property to indicate the referenced anchor.
Returns:
Anchor of this node or null if no anchor is defined./**
     * Node anchor by which this node might later be referenced by a
     * {@link AliasEvent}.
     * <p>
     * Note that {@link AliasEvent}s are by it self <code>NodeEvent</code>s and
     * use this property to indicate the referenced anchor.
     * 
     * @return Anchor of this node or <code>null</code> if no anchor is defined.
     */
    public String getAnchor() {
        return this.anchor;
    }

    @Override
    protected String getArguments() {
        return "anchor=" + anchor;
    }
}