Java XML Element Check isXmlElementRequired(Field f)

Description

Checks if the XML element filed is required.

License

Open Source License

Parameter

Parameter	Description
Field	f

Return

boolean

Declaration

public static boolean isXmlElementRequired(Field f) 

Method Source Code

//package com.java2s;
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

import java.lang.reflect.Field;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlElementRefs;
import javax.xml.bind.annotation.XmlElements;

public class Main {
    /** Checks if the XML element filed is required. 
     * /*from  www. j  ava2 s .c o  m*/
     * @param Field f
     * 
     * @return boolean
     * 
     * */
    public static boolean isXmlElementRequired(Field f) {
        boolean ret = false;

        if (null != f) {
            XmlElement xmlElement = getXmlElement(f);
            if (null != xmlElement) {
                ret = xmlElement.required();
            } else {
                XmlElementRefs xmlElementRefs = getXmlElementRefs(f);
                if (null != xmlElementRefs) {
                    // For all "Order" and "Group" indicators (any, all, choice, sequence, group name, and group reference) 
                    // the default value for maxOccurs and minOccurs is 1.
                    ret = true;
                } else {
                    XmlElements xmlElements = getXmlElements(f);
                    if (null != xmlElements) {
                        // For all "Order" and "Group" indicators (any, all, choice, sequence, group name, and group reference) 
                        // the default value for maxOccurs and minOccurs is 1.
                        ret = true;
                    }
                }
            }
        }

        return ret;
    }

    public static XmlElement getXmlElement(Field f) {
        XmlElement ret = null;

        if (null != f) {
            ret = (XmlElement) f.getAnnotation(XmlElement.class);
        }

        return ret;
    }

    public static XmlElementRefs getXmlElementRefs(Field f) {
        XmlElementRefs ret = null;

        if (null != f) {
            ret = (XmlElementRefs) f.getAnnotation(XmlElementRefs.class);
        }

        return ret;
    }

    public static XmlElements getXmlElements(Field f) {
        XmlElements ret = null;

        if (null != f) {
            ret = (XmlElements) f.getAnnotation(XmlElements.class);
        }

        return ret;
    }
}

Related

1. isTextOnly(final Element element)
2. isTrue(Element el, String tagName, boolean defaultResult)
3. isUIParameter(Element ele)
4. isUnder5_6(Element root)
5. isXmlElementChoice(Field f, String xmlElementName)
6. isXULElement(Element elem)