Package org.apache.cayenne

Examples of org.apache.cayenne.CayenneException

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                result = internalPerformIteratedQuery(query);
            }
            catch (Exception e) {
                Transaction.bindThreadTransaction(null);
                tx.setRollbackOnly();
                throw new CayenneException(e);
            }
            finally {
                // note: we are keeping the transaction bound to the current thread on
                // success - iterator will unbind it. Unsetting a transaction here would
                // result in some strangeness, at least on Ingres
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                tx.rollback();
            }
            catch (Exception rollbackEx) {
            }

            throw new CayenneException(e);
        }
        finally {
            if(Transaction.getThreadTransaction() == tx) {
                Transaction.bindThreadTransaction(null);
            }
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                result = internalPerformIteratedQuery(query);
            }
            catch (Exception e) {
                Transaction.bindThreadTransaction(null);
                tx.setRollbackOnly();
                throw new CayenneException(e);
            }
            finally {
                // note: we are keeping the transaction bound to the current thread on
                // success - iterator will unbind it. Unsetting a transaction here would
                // result in some strangeness, at least on Ingres
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     * @param defaultEntity an entity needed to build ObjectIds for distinct comparison.
     */
    public DistinctResultIterator(ResultIterator wrappedIterator, DbEntity defaultEntity,
            boolean compareFullRows) throws CayenneException {
        if (wrappedIterator == null) {
            throw new CayenneException("Null wrapped iterator.");
        }

        if (defaultEntity == null) {
            throw new CayenneException("Null defaultEntity.");
        }

        this.wrappedIterator = wrappedIterator;
        this.defaultEntity = defaultEntity;
        this.fetchedIds = new HashSet<Map<String, Object>>();
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        return nextDataRow != null;
    }

    public Map nextDataRow() throws CayenneException {
        if (!hasNextRow()) {
            throw new CayenneException(
                    "An attempt to read uninitialized row or past the end of the iterator.");
        }

        Map<String, Object> row = nextDataRow;
        checkNextRow();
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     * Returns a Map for the next ObjectId. After calling this method, calls to
     * "nextDataRow()" will result in exceptions.
     */
    public Map nextObjectId(DbEntity entity) throws CayenneException {
        if (!hasNextRow()) {
            throw new CayenneException(
                    "An attempt to read uninitialized row or past the end of the iterator.");
        }

        Map<String, Object> row = nextDataRow;

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        if (pk.size() != 1) {
            return nextObjectId(entity);
        }

        if (!hasNextRow()) {
            throw new CayenneException(
                    "An attempt to read uninitialized row or past the end of the iterator.");
        }

        Map<String, Object> row = nextDataRow;
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        return row.get(pk.iterator().next().getName());
    }

    public void skipDataRow() throws CayenneException {
        if (!hasNextRow()) {
            throw new CayenneException(
                    "An attempt to read uninitialized row or past the end of the iterator.");
        }

        if (readingIds) {
            checkNextId(defaultEntity);
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        }
    }

    void checkNextRow() throws CayenneException {
        if (readingIds) {
            throw new CayenneException(
                    "Can't go back from reading ObjectIds to reading rows.");
        }

        if (this.compareFullRows) {
            checkNextUniqueRow();
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        }
    }

    void checkNextId(DbEntity entity) throws CayenneException {
        if (entity == null) {
            throw new CayenneException("Null DbEntity, can't create id.");
        }

        this.readingIds = true;
        this.nextDataRow = null;
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Related Classes of org.apache.cayenne.CayenneException

  • org.apache.cayenne.access.DataContext
  • org.apache.cayenne.access.DataPort
  • org.apache.cayenne.access.DefaultResultIterator
  • org.apache.cayenne.access.InternalTransaction
  • org.apache.cayenne.access.jdbc.BatchAction
  • org.apache.cayenne.access.jdbc.DistinctResultIterator
  • org.apache.cayenne.access.jdbc.EntityRowReader
  • org.apache.cayenne.access.jdbc.FullRowReader
  • org.apache.cayenne.access.jdbc.IdRowReader
  • org.apache.cayenne.access.jdbc.JDBCResultIterator
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