/*
 * Copyright (c) 2010-2013 Evolveum
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.evolveum.midpoint.repo.sql.data.common.container;

import com.evolveum.midpoint.repo.sql.data.common.RObject;
import com.evolveum.midpoint.repo.sql.data.common.id.RCObjectReferenceId;
import com.evolveum.midpoint.repo.sql.data.common.other.RCReferenceOwner;
import com.evolveum.midpoint.repo.sql.data.common.other.RObjectType;
import com.evolveum.midpoint.repo.sql.query.definition.JaxbType;
import com.evolveum.midpoint.repo.sql.query2.definition.NotQueryable;
import com.evolveum.midpoint.repo.sql.util.MidPointSingleTablePersister;
import com.evolveum.midpoint.repo.sql.util.RUtil;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectReferenceType;

import org.hibernate.annotations.ForeignKey;
import org.hibernate.annotations.NotFound;
import org.hibernate.annotations.NotFoundAction;
import org.hibernate.annotations.Persister;

import javax.persistence.*;

/**
 * @author lazyman
 */
@JaxbType(type = ObjectReferenceType.class)
@Entity
@IdClass(RCObjectReferenceId.class)
@Table(name = "m_assignment_reference", indexes = {
        @javax.persistence.Index(name = "iAssignmentReferenceTargetOid", columnList = "targetOid")
})
@Persister(impl = MidPointSingleTablePersister.class)
public class RAssignmentReference extends RContainerReference {

    private RAssignment owner;

    @ForeignKey(name = "fk_assignment_reference")
    @MapsId("owner")
    @ManyToOne(fetch = FetchType.LAZY)
    @NotQueryable
    public RAssignment getOwner() {
        return owner;
    }

    @Id
    @Column(name = "owner_owner_oid", length = RUtil.COLUMN_LENGTH_OID)
    @NotQueryable
    public String getOwnerOid() {
        return super.getOwnerOid();
    }


    @Id
    @Column(name = "owner_id")
    @NotQueryable
    public Integer getOwnerId() {
        return super.getOwnerId();
    }

    //@MapsId("target")
    @ForeignKey(name="none")
    @ManyToOne(fetch = FetchType.LAZY, optional = true)
    @JoinColumn(referencedColumnName = "oid", updatable = false, insertable = false, nullable = true)
    @NotFound(action = NotFoundAction.IGNORE)
    @NotQueryable
    // declared for HQL use only
    public RObject getTarget() {
        return null;
    }

    @Id
    @Column(name = "targetOid", length = RUtil.COLUMN_LENGTH_OID)
    @Override
    public String getTargetOid() {
        return super.getTargetOid();
    }

    @Id
    @Column(name="relation", length = RUtil.COLUMN_LENGTH_QNAME)
    public String getRelation() {
        return super.getRelation();
    }

    /**
     * Represents {@link javax.xml.namespace.QName} type attribute in reference e.g.
     * {@link com.evolveum.midpoint.xml.ns._public.common.common_3.UserType} represented
     * as enum {@link com.evolveum.midpoint.repo.sql.data.common.other.RObjectType#USER}
     *
     * @return null if not defined, otherwise value from {@link com.evolveum.midpoint.repo.sql.data.common.other.RObjectType} enum
     */
    @Column(name = "targetType")
    @Enumerated(EnumType.ORDINAL)
    @Override
    public RObjectType getType() {
        return super.getType();
    }

    @Id
    @Column(name = REFERENCE_TYPE, nullable = false)
    public RCReferenceOwner getReferenceType() {
        return super.getReferenceType();
    }

    public void setOwner(RAssignment owner) {
        this.owner = owner;
    }
}