Examples of java.sql.BatchUpdateException

java.sql.BatchUpdateException
The subclass of {@link SQLException} thrown when an erroroccurs during a batch update operation. In addition to the information provided by {@link SQLException}, a BatchUpdateException provides the update counts for all commands that were executed successfully during the batch update, that is, all commands that were executed before the error occurred. The order of elements in an array of update counts corresponds to the order in which commands were added to the batch.
After a command in a batch update fails to execute properly and a BatchUpdateException is thrown, the driver may or may not continue to process the remaining commands in the batch. If the driver continues processing after a failure, the array returned by the method BatchUpdateException.getUpdateCounts will have an element for every command in the batch rather than only elements for the commands that executed successfully before the error. In the case where the driver continues processing commands, the array element for any command that failed is Statement.EXECUTE_FAILED.
A JDBC driver implementation should use the constructor {@code BatchUpdateException(String reason, String SQLState,int vendorCode, long []updateCounts,Throwable cause) } instead ofconstructors that take {@code int[]} for the update counts to avoid thepossibility of overflow.
If {@code Statement.executeLargeBatch} method is invoked it is recommended that{@code getLargeUpdateCounts} be called instead of {@code getUpdateCounts}in order to avoid a possible overflow of the integer update count. @since 1.2


                rc = step(stmt);
                if (rc != SQLITE_DONE) {
                    reset(stmt);
                    if (rc == SQLITE_ROW) {
                        throw new BatchUpdateException("batch entry " + i + ": query returns results", changes);
                    }
                    throwex();
                }


                changes[i] = changes();

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                        this.sql = (String) batch[i];
                        db.prepare(this);
                        changes[i] = db.executeUpdate(this, null);
                    }
                    catch (SQLException e) {
                        throw new BatchUpdateException("batch entry " + i + ": " + e.getMessage(), changes);
                    }
                    finally {
                        db.finalize(this);
                    }
                }

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                rc = step(stmt);
                if (rc != SQLITE_DONE) {
                    reset(stmt);
                    if (rc == SQLITE_ROW)
                        throw new BatchUpdateException("batch entry " + i + ": query returns results", changes);
                    throwex();
                }


                changes[i] = changes();
            }

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                        this.sql = (String) batch[i];
                        db.prepare(this);
                        changes[i] = db.executeUpdate(this, null);
                    }
                    catch (SQLException e) {
                        throw new BatchUpdateException("batch entry " + i + ": " + e.getMessage(), changes);
                    }
                    finally {
                        db.finalize(this);
                    }
                }

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                updateCounts[i] = EXECUTE_FAILED.intValue();
            }


            // See if we should return an exception
            if (sqlEx != null) {
                BatchUpdateException batchEx =
                        new BatchUpdateException(sqlEx.getMessage(),
                                                 sqlEx.getSQLState(),
                                                 sqlEx.getErrorCode(),
                                                 updateCounts);
                // Chain any other exceptions
                batchEx.setNextException(sqlEx.getNextException());
                throw batchEx;
            }
            return updateCounts;
        } catch (BatchUpdateException ex) {
            // If it's a BatchUpdateException let it go
            throw ex;
        } catch (SQLException ex) {
            // An SQLException can only occur while sending the batch
            // (getBatchCounts() doesn't throw SQLExceptions), so we have to
            // end the batch and return the partial results
            // FIXME What should we send here to flush out the batch?
            // Come to think of it, is there any circumstance under which this
            // could actually happen without the connection getting closed?
            // No counts will have been returned either as last packet will not
            // have been sent.
            throw new BatchUpdateException(ex.getMessage(), ex.getSQLState(),
                    ex.getErrorCode(), new int[0]);
        } finally {
            clearBatch();
        }
    }

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                        this.sql = (String) batch[i];
                        db.prepare(this);
                        changes[i] = db.executeUpdate(this, null);
                    }
                    catch (SQLException e) {
                        throw new BatchUpdateException("batch entry " + i + ": " + e.getMessage(), changes);
                    }
                    finally {
                        db.finalize(this);
                    }
                }

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                rc = step(stmt);
                if (rc != SQLITE_DONE) {
                    reset(stmt);
                    if (rc == SQLITE_ROW) {
                        throw new BatchUpdateException("batch entry " + i + ": query returns results", changes);
                    }
                    throwex();
                }


                changes[i] = changes();

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        s.addBatch("create table t(x int unique not null)");
        for (int i = 0; i < 3; i++) {
            s.addBatch("insert into t values 1");
        }


        BatchUpdateException bue = null;
        try {
            s.executeBatch();
        } catch (BatchUpdateException e) {
            bue = e;
        }
        assertNotNull("Did not get duplicate key exception", bue);


        StringWriter w = new StringWriter();
        bue.printStackTrace(new PrintWriter(w, true));


        String stackTrace = w.toString();
        if (stackTrace.indexOf("duplicate key") == -1) {
            fail("Could not see 'duplicate key' in printStackTrace()", bue);
        }

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        updateCounts = resultIn.getUpdateCounts();


//#ifdef JAVA2
        if (updateCounts.length != batchCount) {
            throw new BatchUpdateException("failed batch", updateCounts);
        }


//#endif JAVA2
        return updateCounts;
    }

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     * 
     * @since 1.6
     */
    public void testBatchUpdateExceptionLThrowable() {
        Throwable cause = new Exception("MYTHROWABLE");
        BatchUpdateException batchUpdateException = new BatchUpdateException(
                cause);
        assertNotNull(batchUpdateException);
        assertEquals("java.lang.Exception: MYTHROWABLE", batchUpdateException
                .getMessage());
        assertNull(batchUpdateException.getSQLState());
        assertEquals(0, batchUpdateException.getErrorCode());
        assertEquals(cause, batchUpdateException.getCause());
    }

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