org.eclipse.persistence.internal.queries.AttributeItem Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation
EclipseLink build based upon Git transaction f2b9fc5
There is a newer version: 5.0.0-B03
/*
 * Copyright (c) 2011, 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     05/19/2010-2.1 ailitchev - Bug 244124 - Add Nested FetchGroup
//     09 Jan 2013-2.5 Gordon Yorke
//       - 397772: JPA 2.1 Entity Graph Support
package org.eclipse.persistence.internal.queries;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.persistence.core.queries.CoreAttributeItem;

import org.eclipse.persistence.queries.AttributeGroup;
import org.eclipse.persistence.queries.FetchGroup;
import org.eclipse.persistence.queries.LoadGroup;
import org.eclipse.persistence.sessions.CopyGroup;

/**
 * Purpose: Elements stored in AttributeGroup
 *
 * @author dclarke, ailitchev
 * @since EclipseLink 2.1
 */
public class AttributeItem extends CoreAttributeItem implements Serializable {

    protected AttributeItem() {
    }

    public AttributeItem(AttributeGroup parent, String attributeName) {
        this.parent = parent;
        this.attributeName = attributeName;
    }

    @Override
    public String getAttributeName() {
        return this.attributeName;
    }


    public AttributeItem toCopyGroup(Map cloneMap, CopyGroup parentClone, Map copies){
        AttributeItem clone = new AttributeItem();
        clone.attributeName = this.attributeName;
        if (this.group != null){
            clone.group = this.group.toCopyGroup(cloneMap, copies);
        }
        if (clone.keyGroup != null){
            clone.keyGroup = this.keyGroup.toCopyGroup(cloneMap, copies);
        }
        clone.parent = parentClone;
        if (this.subGroups != null){
            clone.subGroups = new HashMap<>();
            for (Entry group : this.subGroups.entrySet()){
                clone.subGroups.put(group.getKey(), group.getValue().toCopyGroup(cloneMap, copies));
            }
        }
        if (this.keyGroups != null){
            clone.keyGroups = new HashMap<>();
            for (Entry group : this.keyGroups.entrySet()){
                clone.keyGroups.put(group.getKey(), group.getValue().toCopyGroup(cloneMap, copies));
            }
        }
        return clone;

    }

    public AttributeItem toFetchGroup(Map cloneMap, FetchGroup parentClone){
        AttributeItem clone = new AttributeItem();
        clone.attributeName = this.attributeName;
        if (this.group != null){
            clone.group = this.group.toFetchGroup(cloneMap);
        }
        if (clone.keyGroup != null){
            clone.keyGroup = this.keyGroup.toFetchGroup(cloneMap);
        }
        clone.parent = parentClone;
        if (this.subGroups != null){
            clone.subGroups = new HashMap<>();
            for (Entry group : this.subGroups.entrySet()){
                clone.subGroups.put(group.getKey(), group.getValue().toFetchGroup(cloneMap));
            }
        }
        if (this.keyGroups != null){
            clone.keyGroups = new HashMap<>();
            for (Entry group : this.keyGroups.entrySet()){
                clone.keyGroups.put(group.getKey(), group.getValue().toFetchGroup(cloneMap));
            }
        }
        return clone;

    }

    public AttributeItem toLoadGroup(Map cloneMap, LoadGroup parentClone, boolean loadOnly){
        AttributeItem clone = new AttributeItem();
        clone.attributeName = this.attributeName;
        if (this.group != null){
            clone.group = this.group.toLoadGroup(cloneMap, loadOnly);
        }
        if (clone.keyGroup != null){
            clone.keyGroup = this.keyGroup.toLoadGroup(cloneMap, loadOnly);
        }
        clone.parent = parentClone;
        if (this.subGroups != null){
            clone.subGroups = new HashMap<>();
            for (Entry group : this.subGroups.entrySet()){
                clone.subGroups.put(group.getKey(), group.getValue().toLoadGroup(cloneMap, loadOnly));
            }
        }
        if (this.keyGroups != null){
            clone.keyGroups = new HashMap<>();
            for (Entry group : this.keyGroups.entrySet()){
                clone.keyGroups.put(group.getKey(), group.getValue().toLoadGroup(cloneMap, loadOnly));
            }
        }
        return clone;

    }

    @Override
    public AttributeGroup getParent() {
        return super.getParent();
    }

    @Override
    public boolean equals(Object obj) {
        if (this != obj) {
            if(obj == null) {
                return false;
            }
            AttributeItem anotherItem = null;
            try {
                anotherItem = (AttributeItem)obj;
            } catch (ClassCastException cce) {
                return false;
            }

            if(this.subGroups != null) {
                if (anotherItem.subGroups == null){
                    return false;
                }
                if (this.subGroups.size() == anotherItem.subGroups.size()){
                    for (Map.Entry entry : this.subGroups.entrySet()){
                        AttributeGroup anotherGroup = anotherItem.subGroups.get(entry.getKey());
                        if (! entry.getValue().equals(anotherGroup)){
                            return false;
                        }
                    }
                }else{
                    return false;
                }
            } else if (anotherItem.subGroups != null){
                return false;
            }

            if(this.keyGroups != null) {
                if (anotherItem.keyGroups == null){
                    return false;
                }
                if (this.keyGroups.size() == anotherItem.keyGroups.size()){
                    for (Map.Entry entry : this.keyGroups.entrySet()){
                        AttributeGroup anotherGroup = anotherItem.keyGroups.get(entry.getKey());
                        if (! entry.getValue().equals(anotherGroup)){
                            return false;
                        }
                    }
                }else{
                    return false;
                }
            } else if (anotherItem.keyGroups != null){
                return false;
            }
        }
        return true;
    }

    @Override
    public int hashCode() {
        int result = subGroups != null ? subGroups.hashCode() : 0;
        result = 31 * result + (keyGroups != null ? keyGroups.hashCode() : 0);
        return result;
    }

    @Override
    public AttributeGroup getGroup() {
        return super.getGroup();
    }

    public void setGroup(AttributeGroup group) {
        this.group = group;
    }


}