技術標籤：plmptc後端

Windchill 高階查詢 獲取分類節點可例項化設定

開發環境：windchill 11.0 M030
如題，目標是查詢partsLink模組中，分類節點的可例項化設定。
執行sql如下：

select a2.value 
from LWCPropertyDefinition a1, LWCPropertyValue a2, LWCStructEnumAttTemplate a3 
where a1.ida2a2=a2.ida3a4 and a2.ida3b4=a3.ida2a2 and 
a3.deletedid is null and a1.name='instantiable'
 
 and a3.name='分類節點內部名稱'

需要注意：
如果可例項化的值，不是手動設定的，而是繼承得到的，則上面的sql查不出來。

使用高階查詢，程式碼實現如下

import com.ptc.core.lwc.server.LWCPropertyDefinition;
import com.ptc.core.lwc.server.LWCPropertyValue;
import com.ptc.core.lwc.server.LWCStructEnumAttTemplate;

import wt.fc.PersistenceHelper;
import wt.fc.QueryResult;
 

import wt.query.ClassAttribute;
import wt.query.QuerySpec;
import wt.query.SearchCondition;
import wt.query.TableColumn;

/**
 * @author 彭秉浪 [email protected]
 */
public class TestUtil {
	public static boolean getInstantiableByClassificationNode(String internalName) {
		try {
			QuerySpec qs = new
 
 QuerySpec();
			qs.setAdvancedQueryEnabled(true);// 設定為高階查詢

			int a1 = qs.addClassList(LWCPropertyDefinition.class, false);
			int a2 = qs.addClassList(LWCPropertyValue.class, true);
			int a3 = qs.addClassList(LWCStructEnumAttTemplate.class, false);

			ClassAttribute value = new ClassAttribute(LWCPropertyValue.class, LWCPropertyValue.VALUE);
			qs.appendSelect(value, new int[] { a2 }, true);

			String a1Column = qs.getFromClause().getAliasAt(a1);
			String a2Column = qs.getFromClause().getAliasAt(a2);
			String a3Column = qs.getFromClause().getAliasAt(a3);

			// 新增表之間的連結條件
			TableColumn a1_ida2a2 = new TableColumn(a1Column, "ida2a2");
			TableColumn a3_ida2a2 = new TableColumn(a3Column, "ida2a2");
			TableColumn a2_ida3a4 = new TableColumn(a2Column, "ida3a4");
			TableColumn a2_ida3b4 = new TableColumn(a2Column, "ida3b4");
			SearchCondition join1 = new SearchCondition(a2_ida3a4, SearchCondition.EQUAL, a1_ida2a2);
			qs.appendWhere(join1, new int[] { a2, a1 });
			qs.appendAnd();
			SearchCondition join2 = new SearchCondition(a2_ida3b4, SearchCondition.EQUAL, a3_ida2a2);
			qs.appendWhere(join2, new int[] { a2, a3 });
			qs.appendAnd();

			// 新增查詢條件
			// deletedid為空表示分類節點沒有被刪除
			TableColumn deletedid = new TableColumn(a3Column, "deletedid");
			SearchCondition sc1 = new SearchCondition(deletedid, SearchCondition.IS_NULL);
			qs.appendWhere(sc1, new int[] { a3 });
			qs.appendAnd();
			SearchCondition sc2 = new SearchCondition(LWCPropertyDefinition.class, LWCPropertyDefinition.NAME, SearchCondition.EQUAL, "instantiable");
			qs.appendWhere(sc2, new int[] { a1 });
			qs.appendAnd();
			SearchCondition sc3 = new SearchCondition(LWCStructEnumAttTemplate.class, LWCStructEnumAttTemplate.NAME, SearchCondition.EQUAL, internalName);
			qs.appendWhere(sc3, new int[] { a3 });

			QueryResult qr = PersistenceHelper.manager.find(qs);
			while (qr.hasMoreElements()) {
				Object[] objectArr = (Object[]) qr.nextElement();
				if (objectArr[0] instanceof LWCPropertyValue) {
					LWCPropertyValue propertyValue = (LWCPropertyValue) objectArr[0];
					if ("true".equals(propertyValue.getValue())) {
						return true;
					}
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}
}

上面的sql查詢，表結構是自己工作之餘摸索出來的，目前只在測試庫測試通過，如果有錯誤，請留言評論或發站內私信，謝謝。