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A lib to access XML via XPath
There is a newer version: 1.0.5
/* -*-             c-basic-offset: 4; indent-tabs-mode: nil; -*-  //------100-columns-wide------>|*/
// for license please see accompanying LICENSE.txt file (available also at http://www.xmlpull.org/)

package org.xmlpull.v1.wrapper;

import java.io.IOException;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;

/**
 * Extensions to XmlSerialzier interface
 *
 * @author Aleksander Slominski
 * @author Naresh Bhatia
 */
public interface XmlSerializerWrapper extends XmlSerializer {
    public static final String NO_NAMESPACE = XmlPullParserWrapper.NO_NAMESPACE;
    public static final String XSI_NS = XmlPullParserWrapper.XSI_NS;
    public static final String XSD_NS = XmlPullParserWrapper.XSD_NS;

    /**
     * Get namespace that is used as default when no namespace parameter is used for
     * startTag(), endTag() and element()
     */
    public String getCurrentNamespaceForElements();

    /**
     * Set namespace to use in startTag(), endTag() and element()
     * when methods called are those without namespace parameter.
     */
    public String setCurrentNamespaceForElements(String value);


    /**
     * Write an attribute without namespace.
     * Calls to attribute() MUST follow a call to
     * startTag() immediately. If there is no prefix defined for the
     * given namespace, a prefix will be defined automatically.
     * NOTE: current element namespace is not used attribute and attributre has no namespace.
     */
    public XmlSerializerWrapper attribute (String name, String value)
        throws IOException, IllegalArgumentException, IllegalStateException;

    /** Write start tag in current namespace with name given as argument. */
    public XmlSerializerWrapper startTag(String name)
        throws IOException, IllegalArgumentException, IllegalStateException;

    /** Write end tag in current namespace with name given as argument. */
    public XmlSerializerWrapper endTag(String name)
        throws IOException, IllegalArgumentException, IllegalStateException;

    /**
     * Writes a simple element such as <username>johndoe</username>. The namespace
     * and elementText are allowed to be null. If elementText is null, an xsi:nil="true"
     * will be added as an attribute.
     */
    public XmlSerializerWrapper element(String namespace, String elementName, String elementText)
        throws IOException, XmlPullParserException;

    /** Write simple text element in current namespace */
    public XmlSerializerWrapper element(String elementName, String elementText)
        throws IOException, XmlPullParserException;

    /** Write XML fragment using currently set namespace prefixes */
    public void fragment(String xmlFragment)
        throws IOException, IllegalArgumentException, IllegalStateException, XmlPullParserException;

    /** Serializer current event form pull parser */
    public void event(XmlPullParser pp)
        throws IOException, IllegalArgumentException, IllegalStateException, XmlPullParserException;

    public String escapeText(String text) throws IllegalArgumentException;
    public String escapeAttributeValue(String text) throws IllegalArgumentException;

    // set of methods to make easy to write XSD types

//    /**
//     * Write as text value of argument (just calls text!).
//     */
//    public void writeDouble(double d)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeFloat(float f)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeInt(int i)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeString(String s)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//
//    /**
//     * Write as element with namesoace and name and value inside
//     * (looks like <ns:name>value</ns:name> where ns is prefix
//     * for namespace autoatically declared if needed).
//     */
//    public void writeDoubleElement(String namespace, String name, double d)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeFloatElement(String namespace, String name, float f)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeIntElement(String namespace, String name, int i)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
//    public void writeStringElement(String namespace, String name, String s)
//        throws XmlPullParserException, IOException, IllegalArgumentException;
}