package com.avaje.ebeaninternal.api;

import java.util.List;

import com.avaje.ebean.bean.BeanCollection;
import com.avaje.ebeaninternal.server.core.OrmQueryRequest;

/**
 * Request for loading Associated Many Beans.
 */
public class LoadManyRequest extends LoadRequest {

  private final List<BeanCollection<?>> batch;

  private final LoadManyBuffer loadContext;

  private final boolean onlyIds;

  private final boolean loadCache;

  public LoadManyRequest(LoadManyBuffer loadContext, int batchSize, boolean lazy,boolean onlyIds, boolean loadCache) {
    this(loadContext, null, batchSize, lazy, onlyIds, loadCache);
  }
  
  public LoadManyRequest(LoadManyBuffer loadContext, OrmQueryRequest<?> parentRequest, int batchSize, boolean lazy,
      boolean onlyIds, boolean loadCache) {

    super(parentRequest, lazy);
    this.loadContext = loadContext;
    this.batch = loadContext.getBatch();
    this.onlyIds = onlyIds;
    this.loadCache = loadCache;
  }

  public String getDescription() {
    return "path:" + loadContext.getFullPath() + " size:" + batch.size();
  }

  /**
   * Return the batch of collections to actually load.
   */
  public List<BeanCollection<?>> getBatch() {
    return batch;
  }

  /**
   * Return the load context.
   */
  public LoadManyBuffer getLoadContext() {
    return loadContext;
  }

  /**
   * Return true if lazy loading should only load the id values.
   * <p>
   * This for use when lazy loading is invoked on methods such as clear() and removeAll() where it
   * generally makes sense to only fetch the Id values as the other property information is not
   * used.
   * </p>
   */
  public boolean isOnlyIds() {
    return onlyIds;
  }

  /**
   * Return true if we should load the Collection ids into the cache.
   */
  public boolean isLoadCache() {
    return loadCache;
  }

}