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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.annotation;
import com.yahoo.document.datatypes.StringFieldValue;
/**
* An interface to be implemented by classes that can be parents of SpanNodes.
*
* @author Einar M R Rosenvinge
* @see SpanNode#getParent()
*/
public interface SpanNodeParent {
/**
* Returns the SpanTree of this, if any.
*
* @return the SpanTree of this, if it belongs to a SpanTree, otherwise null.
*/
SpanTree getSpanTree();
/**
* Returns the StringFieldValue that this node belongs to, if any.
*
* @return the StringFieldValue that this node belongs to, if any, otherwise null.
*/
StringFieldValue getStringFieldValue();
}
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