Package org.nutz.dao.impl.link

Source Code of org.nutz.dao.impl.link.DoUpdateRelationLinkVisitor

package org.nutz.dao.impl.link;

import java.util.Map;

import org.nutz.dao.Condition;
import org.nutz.dao.entity.Entity;
import org.nutz.dao.entity.LinkField;
import org.nutz.dao.impl.AbstractLinkVisitor;
import org.nutz.dao.impl.entity.field.ManyManyLinkField;
import org.nutz.dao.sql.PItem;
import org.nutz.dao.sql.Pojo;
import org.nutz.dao.util.Pojos;

public class DoUpdateRelationLinkVisitor extends AbstractLinkVisitor {

  private Map<String, Object> map;

  private PItem[] items;

  public DoUpdateRelationLinkVisitor(Map<String, Object> map, Condition cnd) {
    this.map = map;
    this.items = Pojos.Items.cnd(cnd);
  }

  public void visit(Object obj, LinkField lnk) {
    if (lnk instanceof ManyManyLinkField) {
      ManyManyLinkField mm = (ManyManyLinkField) lnk;
      Entity<?> en = opt.makeEntity(mm.getRelationName(), map);
      Pojo pojo = opt.maker().makeUpdate(en, null);
      pojo.setOperatingObject(map);
      pojo.append(items);
      opt.add(pojo);
    }
  }

}
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