com.northconcepts.datapipeline.core

Class AbstractWriter

java.lang.Object

com.northconcepts.datapipeline.core.DataObject

com.northconcepts.datapipeline.core.Endpoint

com.northconcepts.datapipeline.core.DataEndpoint

com.northconcepts.datapipeline.core.DataWriter

com.northconcepts.datapipeline.core.AbstractWriter

Direct Known Subclasses:

BinaryWriter, ExcelWriter, TextWriter

public abstract class AbstractWriter
extends DataWriter

Abstract super-class, with some common logic, for writing records. The only method subclasses must implement is writeRecord(Record).

Nested Class Summary

Nested classes/interfaces inherited from class com.northconcepts.datapipeline.core.DataEndpoint

DataEndpoint.State

Field Summary

Fields

Modifier and Type	Field and Description
protected Record	currentRecord

Fields inherited from class com.northconcepts.datapipeline.core.DataEndpoint

lastRecord, PRODUCT, PRODUCT_VERSION, VENDOR, XML_INPUT_FACTORY_KEY

Fields inherited from class com.northconcepts.datapipeline.core.Endpoint

BUFFER_SIZE, captureElapsedTime, DEFAULT_READ_BUFFER_SIZE

Fields inherited from class com.northconcepts.datapipeline.core.DataObject

id, log, name, TIMESTAMP_FORMAT

Constructor Summary

Constructors

Constructor and Description
AbstractWriter()

Method Summary

Modifier and Type	Method and Description
DataException	addExceptionProperties(DataException exception) Adds this endpoint's current state to a DataException.
boolean	isFieldNamesInFirstRow()
void	open() Makes this endpoint ready for reading or writing.
AbstractWriter	setFieldNamesInFirstRow(boolean fieldNamesInFirstRow)
void	write(Record record) Writes the specified record to this DataWriter and increases the record-count by 1.
protected void	writeImpl(Record record) Overridden by subclasses to write the specified record to this DataWriter.
protected abstract void	writeRecord(Record record)

Methods inherited from class com.northconcepts.datapipeline.core.DataWriter

available, getNestedEndpoint, getNestedWriter, getRootEndpoint, getRootWriter

Methods inherited from class com.northconcepts.datapipeline.core.DataEndpoint

close, decrementRecordCount, enableJmx, getLastRecord, getRecordCount, getRecordCountAsBigInteger, getRecordCountAsString, incrementRecordCount, isRecordCountBigInteger, resetRecordCount, toString

Methods inherited from class com.northconcepts.datapipeline.core.Endpoint

addElapsedtime, assertClosed, assertNotOpened, assertOpened, finalize, getClosedOn, getDescription, getElapsedTime, getElapsedTimeAsString, getOpenedOn, getOpenElapsedTime, getOpenElapsedTimeAsString, getSelfTime, getSelfTimeAsString, getState, isCaptureElapsedTime, isClosed, isOpen, setCaptureElapsedTime, setDescription

Methods inherited from class com.northconcepts.datapipeline.core.DataObject

exception, exception, exception, getId, getName, resetID

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

currentRecord

protected Record currentRecord

Constructor Detail

AbstractWriter

public AbstractWriter()

Method Detail

addExceptionProperties

public DataException addExceptionProperties(DataException exception)

Description copied from class: Endpoint

Adds this endpoint's current state to a DataException. Since this method is called whenever an exception is thrown, subclasses should override it to add their specific information.

Overrides:

addExceptionProperties in class DataWriter

setFieldNamesInFirstRow

public AbstractWriter setFieldNamesInFirstRow(boolean fieldNamesInFirstRow)

isFieldNamesInFirstRow

public boolean isFieldNamesInFirstRow()

open

public void open()

Description copied from class: DataEndpoint

Makes this endpoint ready for reading or writing.

Overrides:

open in class DataEndpoint

write

public void write(Record record)
           throws DataException

Description copied from class: DataWriter

Writes the specified record to this DataWriter and increases the record-count by 1. Any exception raised while writing will be converted to a DataException using DataObject.exception(Throwable).

Subclasses generally do not need to override this method, instead they should implement DataWriter.writeImpl(Record).

Overrides:

write in class DataWriter

Throws:

DataException

writeImpl

protected void writeImpl(Record record)
                  throws Throwable

Description copied from class: DataWriter

Overridden by subclasses to write the specified record to this DataWriter.

Specified by:

writeImpl in class DataWriter

Throws:

Throwable

writeRecord

protected abstract void writeRecord(Record record)
                             throws Throwable

Throws:

Throwable