collectionpropertycustom.java

对xml很好的java处理引擎,编译中绑定xml

/*
Copyright (c) 2007, Dennis M. Sosnoski
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
 * Neither the name of JiBX nor the names of its contributors may be used
   to endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package org.jibx.binding.generator;

import org.apache.bcel.generic.Type;
import org.jibx.binding.model.IClassItem;
import org.jibx.runtime.IUnmarshallingContext;

/**
 * Collection field customization information.
 */
public class CollectionPropertyCustom extends MemberPropertyCustom
{
    // values specific to member level
    private String m_itemType;
    private String m_itemName;
    
    /**
     * Constructor.
     * 
     * @param parent
     */
    protected CollectionPropertyCustom(NestingBase parent) {
        super(parent);
    }
    
    /**
     * Constructor with name known.
     * 
     * @param parent
     * @param name
     */
    protected CollectionPropertyCustom(NestingBase parent, String name) {
        super(parent, name);
    }
    
    /**
     * Check if collection member.
     *
     * @return <code>true</code>
     */
    public boolean isCollection() {
        return true;
    }

    /**
     * Get item type.
     *
     * @return item type (<code>null</code> if none)
     */
    public String getItemType() {
        return m_itemType;
    }
    
    /**
     * Get item element name.
     *
     * @return item name (<code>null</code> if none)
     */
    public String getItemName() {
        return m_itemName;
    }
    
    /**
     * Complete customization information based on access method information.
     *
     * @param gmeth read access method (<code>null</code> if none)
     * @param smeth write access method (<code>null</code> if none)
     * @param type value type
     * @param req required member flag (<code>null</code> if unknown)
     */
    /*package*/ void completeProperty(IClassItem gmeth, IClassItem smeth,
        String type, Boolean req) {
        super.completeProperty(gmeth, smeth, type, req);
        if (type != null) {
            
            // set information from field
            String tname = getWorkingType();
            if (m_itemType == null) {
                if (tname.endsWith("[]")) {
                    m_itemType = tname.substring(0, tname.length()-2);
                } else {
                    String sig;
                    if (gmeth == null) {
                        sig = smeth.getGenericsSignature();
                    } else {
                        sig = gmeth.getGenericsSignature();
                    }
                    int start = sig.indexOf('<');
                    int end = sig.lastIndexOf('>');
                    if (start > 0 && end > 0 && start < end) {
                        String tsig = sig.substring(start+1, end);
                        if (tsig.indexOf('<') < 0) {
                            m_itemType = Type.getType(tsig).toString();
                        }
                    }
                }
            }
            if (m_itemName == null) {
                m_itemName = deriveItemName(getXmlName(), m_itemType,
                    getParent().getNameStyle());
            }
        }
        if (m_itemType == null) {
            m_itemType = "java.lang.Object";
        }
        if (m_itemName == null) {
            m_itemName = "item";
        }
    }
    
    private static CollectionPropertyCustom factory(IUnmarshallingContext ictx) {
        return new CollectionPropertyCustom(getContainingClass(ictx));
    }
}