ebean/src/main/java/io/ebeaninternal/server/deploy/meta/DeployBeanPropertyAssocMany.java

package io.ebeaninternal.server.deploy.meta;

import io.ebean.bean.BeanCollection.ModifyListenMode;
import io.ebeaninternal.server.deploy.ManyType;
import io.ebeaninternal.server.deploy.TableJoin;

/**
 * Property mapped to a List Set or Map.
 */
public class DeployBeanPropertyAssocMany<T> extends DeployBeanPropertyAssoc<T> {

  /**
   * The type of the many, set, list or map.
   */
  final ManyType manyType;

  ModifyListenMode modifyListenMode = ModifyListenMode.NONE;

  /**
   * Flag to indicate manyToMany relationship.
   */
  boolean manyToMany;

  /**
   * Flag to indicate this is a unidirectional relationship.
   */
  boolean unidirectional;

  /**
   * Join for manyToMany intersection table.
   */
  DeployTableJoin intersectionJoin;

  /**
   * For ManyToMany this is the Inverse join used to build reference queries.
   */
  DeployTableJoin inverseJoin;

  String fetchOrderBy;

  String mapKey;

  String intersectionDraftTable;

  /**
   * Create this property.
   */
  public DeployBeanPropertyAssocMany(DeployBeanDescriptor<?> desc, Class<T> targetType, ManyType manyType) {
    super(desc, targetType);
    this.manyType = manyType;
  }

  /**
   * When generics is not used for manyType you can specify via annotations.
   * <p>
   * Really only expect this for Scala due to a Scala compiler bug at the moment.
   * Otherwise I'd probably not bother support this.
   * </p>
   */
  @SuppressWarnings("unchecked")
  public void setTargetType(Class<?> cls) {
    this.targetType = (Class<T>) cls;
  }


  /**
   * Return the many type.
   */
  public ManyType getManyType() {
    return manyType;
  }

  /**
   * Return true if this is many to many.
   */
  public boolean isManyToMany() {
    return manyToMany;
  }

  /**
   * Set to true if this is a many to many.
   */
  public void setManyToMany() {
    this.manyToMany = true;
  }

  /**
   * Return the mode for listening to changes to the List Set or Map.
   */
  public ModifyListenMode getModifyListenMode() {
    return modifyListenMode;
  }

  /**
   * Set the mode for listening to changes to the List Set or Map.
   */
  public void setModifyListenMode(ModifyListenMode modifyListenMode) {
    this.modifyListenMode = modifyListenMode;
  }

  /**
   * Return true if this is a unidirectional relationship.
   */
  public boolean isUnidirectional() {
    return unidirectional;
  }

  /**
   * Set to true if this is a unidirectional relationship.
   */
  public void setUnidirectional() {
    this.unidirectional = true;
  }

  /**
   * Create the immutable version of the intersection join.
   */
  public TableJoin createIntersectionTableJoin() {
    if (intersectionJoin != null) {
      return new TableJoin(intersectionJoin);
    } else {
      return null;
    }
  }

  /**
   * Create the immutable version of the inverse join.
   */
  public TableJoin createInverseTableJoin() {
    if (inverseJoin != null) {
      return new TableJoin(inverseJoin);
    } else {
      return null;
    }
  }

  /**
   * ManyToMany only, join from local table to intersection table.
   */
  public DeployTableJoin getIntersectionJoin() {
    return intersectionJoin;
  }

  public DeployTableJoin getInverseJoin() {
    return inverseJoin;
  }

  /**
   * ManyToMany only, join from local table to intersection table.
   */
  public void setIntersectionJoin(DeployTableJoin intersectionJoin) {
    this.intersectionJoin = intersectionJoin;
  }

  /**
   * ManyToMany only, join from foreign table to intersection table.
   */
  public void setInverseJoin(DeployTableJoin inverseJoin) {
    this.inverseJoin = inverseJoin;
  }

  /**
   * Return the order by clause used to order the fetching of the data for
   * this list, set or map.
   */
  public String getFetchOrderBy() {
    return fetchOrderBy;
  }

  /**
   * Return the default mapKey when returning a Map.
   */
  public String getMapKey() {
    return mapKey;
  }

  /**
   * Set the default mapKey to use when returning a Map.
   */
  public void setMapKey(String mapKey) {
    if (mapKey != null && !mapKey.isEmpty()) {
      this.mapKey = mapKey;
    }
  }

  /**
   * Set the order by clause used to order the fetching or the data for this
   * list, set or map.
   */
  public void setFetchOrderBy(String orderBy) {
    if (orderBy != null && !orderBy.isEmpty()) {
      fetchOrderBy = orderBy;
    }
  }

  /**
   * Return a draft table for intersection between 2 @Draftable entities.
   */
  public String getIntersectionDraftTable() {
    return (intersectionDraftTable != null) ? intersectionDraftTable : intersectionJoin.getTable();
  }

  /**
   * ManyToMany between 2 @Draftable entities to also need draft intersection table.
   */
  public void setIntersectionDraftTable() {
    this.intersectionDraftTable = intersectionJoin.getTable() + "_draft";
  }
}