pl.softech.eav.domain.relation.RelationConfiguration.java Source code

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Here is the source code for pl.softech.eav.domain.relation.RelationConfiguration.java

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/*
 * Copyright 2013 Sawomir led <slawomir.sledz@sof-tech.pl>.
 *
 * 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 pl.softech.eav.domain.relation;

import static com.google.common.base.Preconditions.checkNotNull;

import javax.persistence.AttributeOverride;
import javax.persistence.Cacheable;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.validation.Valid;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.hibernate.annotations.CacheConcurrencyStrategy;

import pl.softech.eav.domain.AbstractEntity;
import pl.softech.eav.domain.TextMedium;
import pl.softech.eav.domain.category.Category;
import pl.softech.eav.domain.category.CategoryIdentifier;

/**
 * @author Sawomir led <slawomir.sledz@sof-tech.pl>
 * @since 1.0
 */
@Entity(name = "pl.softech.eav.domain.relation.RelationConfiguration")
@Table(name = "eav_rel_configuration")
@Cacheable
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class RelationConfiguration extends AbstractEntity {

    @Valid
    @Embedded
    @AttributeOverride(name = CategoryIdentifier.IDENTIFIER_PROPERTY, column = @Column(nullable = false, unique = true))
    private RelationIdentifier identifier;

    @TextMedium
    @Column(nullable = false)
    private String name;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "owner_cat_id", nullable = false)
    private Category owner;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "target_cat_id", nullable = false)
    private Category target;

    protected RelationConfiguration() {
    }

    public RelationConfiguration(Builder builder) {
        this(new RelationIdentifier(builder.identifier), builder.name, builder.owner, builder.target);
    }

    public RelationConfiguration(RelationIdentifier identifier, String name, Category owner, Category target) {
        this.identifier = checkNotNull(identifier, ARG_NOT_NULL_CHECK, "identifier");
        this.name = checkNotNull(name, ARG_NOT_NULL_CHECK, "name");
        this.owner = checkNotNull(owner, ARG_NOT_NULL_CHECK, "owner");
        this.target = checkNotNull(target, ARG_NOT_NULL_CHECK, "target");
    }

    public Category getOwner() {
        return owner;
    }

    public Category getTarget() {
        return target;
    }

    public String getName() {
        return name;
    }

    public RelationIdentifier getIdentifier() {
        return identifier;
    }

    @Override
    public String toString() {
        ToStringBuilder sb = new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE);
        sb.appendSuper(super.toString());
        sb.append(identifier);
        sb.append("name", name);
        sb.append("owner", owner);
        sb.append("target", target);
        return sb.toString();
    }

    public static class Builder {

        private String identifier;

        private String name;

        private Category owner;

        private Category target;

        public Builder withIdentifier(String identifier) {
            this.identifier = identifier;
            return this;
        }

        public Builder withName(String name) {
            this.name = name;
            return this;
        }

        public Builder withOwner(Category owner) {
            this.owner = owner;
            return this;
        }

        public Builder withTarget(Category target) {
            this.target = target;
            return this;
        }

    }

}