javax.xml.parsers.DocumentBuilder Maven / Gradle / Ivy
/*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package javax.xml.parsers;
import java.io.InputStream;
import java.io.IOException;
import org.w3c.dom.Document;
import org.w3c.dom.DOMImplementation;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* Defines the API to obtain DOM Document instances from an XML
* document. Using this class, an application programmer can obtain a
* {@link Document} from XML.
*
* An instance of this class can be obtained from the
* {@link DocumentBuilderFactory#newDocumentBuilder()} method. Once
* an instance of this class is obtained, XML can be parsed from a
* variety of input sources. These input sources are InputStreams
* and SAX InputSources.
*
* Note that this class reuses several classes from the SAX API. This
* does not require that the implementor of the underlying DOM
* implementation use a SAX parser to parse XML document into a
* Document. It merely requires that the implementation
* communicate with the application using these existing APIs.
*/
public abstract class DocumentBuilder
{
/** Protected constructor */
protected DocumentBuilder()
{
}
/**
* Parse the content of the given InputStream as an XML
* document and return a new DOM {@link Document} object.
* An IllegalArgumentException is thrown if the
* InputStream is null.
*
* @param is InputStream containing the content to be parsed.
* @return Document result of parsing the
* InputStream
* @exception IOException If any IO errors occur.
* @exception SAXException If any parse errors occur.
*/
public Document parse(InputStream is)
throws SAXException, IOException
{
if (is == null) {
throw new IllegalArgumentException("InputStream cannot be null");
}
InputSource in = new InputSource(is);
return parse(in);
}
/**
* Parse the content of the given input source as an XML document
* and return a new DOM {@link Document} object.
* An IllegalArgumentException is thrown if the
* InputSource is null null.
*
* @param is InputSource containing the content to be parsed.
* @exception IOException If any IO errors occur.
* @exception SAXException If any parse errors occur.
* @return A new DOM Document object.
*/
public abstract Document parse(InputSource is)
throws SAXException, IOException;
/**
* Indicates whether or not this parser is configured to
* understand namespaces.
*
* @return true if this parser is configured to understand
* namespaces; false otherwise.
*/
public abstract boolean isNamespaceAware();
/**
* Indicates whether or not this parser is configured to
* validate XML documents.
*
* @return true if this parser is configured to validate
* XML documents; false otherwise.
*/
public abstract boolean isValidating();
/**
* Specify the {@link EntityResolver} to be used to resolve
* entities present in the XML document to be parsed. Setting
* this to null will result in the underlying
* implementation using it's own default implementation and
* behavior.
*
* @param er The EntityResolver to be used to resolve entities
* present in the XML document to be parsed.
*/
public abstract void setEntityResolver(EntityResolver er);
/**
* Specify the {@link ErrorHandler} to be used by the parser.
* Setting this to null will result in the underlying
* implementation using it's own default implementation and
* behavior.
*
* @param eh The ErrorHandler to be used by the parser.
*/
public abstract void setErrorHandler(ErrorHandler eh);
/**
* Obtain a new instance of a DOM {@link Document} object
* to build a DOM tree with.
*
* @return A new instance of a DOM Document object.
*/
public abstract Document newDocument();
/**
* Obtain an instance of a {@link DOMImplementation} object.
*
* @return A new instance of a DOMImplementation.
*/
public abstract DOMImplementation getDOMImplementation();
}