Examples of org.voltdb.exceptions.EEException

org.voltdb.exceptions.EEException
Exceptions thrown by native Execution Engine that should only be caught by Volt We don't throw exceptions directly from JNI for portability. Instead, this Exception has an error code which specifies the reason of the exception. Generally these should be errors that are not caused by the user and that are unexpected. They may be fatal and bring down the cluster, but they dont' have to if the code throwing the Exception knows that no data has been corrupted and that operation can continue.

    /**
     * Utility method to generate an EEXception that can be overridden by
     * derived classes
     **/
    protected void throwExceptionForError(final int errorCode) {
        throw new EEException(errorCode);
    }

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            System.out.println("Exception: " + e.getMessage());
            throw new RuntimeException(e);
        }


        if (result != ExecutionEngine.ERRORCODE_SUCCESS) {
            throw new EEException(result);
        } else {
            try {
                return m_connection.readDependencies();
            } catch (final IOException e) {
                // TODO Auto-generated catch block

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            final VoltTable resultTables[] = new VoltTable[1];
            resultTables[0] = PrivateVoltTableFactory.createUninitializedVoltTable();
            try {
                m_connection.readResultTables(resultTables);
            } catch (final IOException e) {
                throw new EEException(
                        ExecutionEngine.ERRORCODE_WRONG_SERIALIZED_BYTES);
            }
            return resultTables[0];
        }
        return null;

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            System.out.println("Exception: " + e.getMessage());
            throw new RuntimeException(e);
        }


        if (result != ExecutionEngine.ERRORCODE_SUCCESS) {
            throw new EEException(result);
        }
    }

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                }
            }
            lengthBuffer.flip();
            final int exceptionLength = lengthBuffer.getInt();//Length is only between EE and Java.
            if (exceptionLength == 0) {
                throw new EEException(errorCode);
            } else {
                final ByteBuffer exceptionBuffer = ByteBuffer.allocate(exceptionLength + 4);
                exceptionBuffer.putInt(exceptionLength);
                while(exceptionBuffer.hasRemaining()) {
                    int read = m_socketChannel.read(exceptionBuffer);

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        exceptionBuffer.clear();
        final int exceptionLength = exceptionBuffer.getInt();
        if (debug.val) LOG.debug("EEException Length: " + exceptionLength);


        if (exceptionLength == 0) {
            throw new EEException(errorCode);
        } else {
            exceptionBuffer.position(0);
            exceptionBuffer.limit(4 + exceptionLength);
            SerializableException ex = null;
            try {

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            } // FOR
            assert(depIds.length == 1);
            return new DependencySet(depIds, dependencies);
        } catch (final IOException ex) {
            LOG.error("Failed to deserialze result dependencies" + ex);
            throw new EEException(ERRORCODE_WRONG_SERIALIZED_BYTES);
        }


    }

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                dependencies[i] = deserializer.readObject(VoltTable.class);
            }
            return dependencies[0];
        } catch (final IOException ex) {
            LOG.error("Failed to deserialze result dependencies" + ex);
            throw new EEException(ERRORCODE_WRONG_SERIALIZED_BYTES);
        }
    }

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            } // FOR
            
            return (new DependencySet(dependencies, results));
        } catch (Throwable ex) {
            LOG.error("Failed to deserialze result table" + ex);
            throw new EEException(ERRORCODE_WRONG_SERIALIZED_BYTES);
        }
    }

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        try {
            return deserializer.readObject(VoltTable.class);
        } catch (final IOException ex) {
            LOG.error("Failed to retrieve table:" + tableId + ex);
            throw new EEException(ERRORCODE_WRONG_SERIALIZED_BYTES);
        }
    }

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