Пример #1
0
 protected void _deleteDependencies() throws DBException {
   DBField[] keyFlds = this.getKeyFields();
   DBFieldValues fldVals = this.getFieldValues();
   DBFactory fact = this.getFactory();
   DBFactory childFact[] = fact.getChildFactories();
   for (int i = 0; i < childFact.length; i++) {
     DBRecordKey key = childFact[i].createKey(); // an empty key
     for (int k = 0; k < keyFlds.length; k++) {
       String fldName = keyFlds[k].getName();
       if (fldVals.hasFieldValue(fldName)) {
         Object fldValue = fldVals.getFieldValue(fldName);
         key.setFieldValue(fldName, fldValue);
       } else {
         throw new DBException("Missing dependent key fields!");
       }
     }
     // Do not perform recursive dependency deletion!
     // - 'key' is an incomplete (partial key only), and dependency deletion would fail
     // - all dependent children should already be specified by "getChildFactories()"
     try {
       int whereKeyType = DBWhere.KEY_PARTIAL_ALL; // Should use ALL available partial keys.
       key._delete(null, whereKeyType); // primary key delete
     } catch (SQLException sqe) {
       throw new DBException("Record deletion", sqe);
     }
   }
 }
Пример #2
0
  /**
   * ** Returns true if the parent records in their respective parent tables exist. ** @return True
   * if the parent records exist.
   */
  public boolean parentsExist() throws DBException {
    DBFactory<gDBR> dbFact = this.getFactory();
    DBFieldValues myFldVals = this.getFieldValues();
    java.util.List<String> parentList = dbFact.getParentTables();
    for (String parentTable : parentList) {

      /* get parent table DBFactory */
      Print.logInfo("[%s] Parent table: %s", this.getTableName(), parentTable);
      DBFactory parentFact = DBFactory.getFactoryByName(parentTable);
      if (parentFact == null) {
        Print.logError("Unexpected error finding parent table: " + parentTable);
        return false;
      }

      /* create parent record key with fields from this key */
      DBRecordKey parentKey = parentFact.createKey(); // an empty key
      DBField parentKeyFlds[] = parentFact.getKeyFields();
      for (DBField pkf : parentKeyFlds) {
        String pfn = pkf.getName();

        /* get this DBField */
        DBField myKeyFld = this.getField(pfn);
        if (myKeyFld == null) {
          Print.logError("Unexpected error finding field: [" + this.getTableName() + "] " + pfn);
          return false;
        }

        /* get parent key field value */
        Object pkv = myFldVals.getFieldValue(pfn);
        if (pkv == null) {
          Print.logError("Unexpected error finding parent field: [" + parentTable + "] " + pfn);
          return false;
        }
        if (myKeyFld.isDefaultValue(pkv)) {
          Print.logInfo("This key contains a global value, skipping parent check: " + parentTable);
          parentKey = null;
          break;
        }
        parentKey.setFieldValue(pfn, pkv);
      }

      /* check parent existence */
      if ((parentKey != null) && !parentKey.exists()) {
        Print.logError("Parent record does not exist: [" + parentTable + "] " + parentKey);
        return false;
      }
    }
    return true;
  }