com.sun.xml.txw2.Content Maven / Gradle / Ivy
/*
* Copyright (c) 2005, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.txw2;
/**
* @author Kohsuke Kawaguchi
*/
abstract class Content {
private Content next;
/**
* Returns null if the next token has not decided yet.
*/
final Content getNext() {
return next;
}
/**
*
* @param doc
* A {@link Content} object is so light-weight that
* it doesn't even remember what document it belongs to.
* So the caller needs to "remind" a {@link Content}
* who its owner is.
*/
final void setNext(Document doc,Content next) {
assert next!=null;
assert this.next==null : "next of "+this+" is already set to "+this.next;
this.next = next;
doc.run();
}
/**
* Returns true if this content is ready to be committed.
*/
boolean isReadyToCommit() {
return true;
}
/**
* Returns true if this {@link Content} can guarantee that
* no more new namespace decls is necessary for the currently
* pending start tag.
*/
abstract boolean concludesPendingStartTag();
/**
* Accepts a visitor.
*/
abstract void accept(ContentVisitor visitor);
/**
* Called when this content is written to the output.
*/
public void written() {
}
}