com.northconcepts.datapipeline.core
Class SequenceReader

java.lang.Object
  com.northconcepts.datapipeline.core.DataEndpoint
      com.northconcepts.datapipeline.core.DataReader
          com.northconcepts.datapipeline.core.SequenceReader

public class SequenceReader
extends DataReader

Nested Class Summary

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

DataEndpoint.State

Field Summary

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

BUFFER_SIZE, log

Constructor Summary

SequenceReader()

Method Summary

SequenceReader	add(DataReader reader)
DataException	addExceptionProperties(DataException exception) Adds this endpoint's current state to a DataException.
int	available() Returns the number of records that can probably be read without blocking.
void	close() Indicates that this endpoint has finished reading or writing.
DataReader	get(int index)
int	getCount()
void	open() Makes this endpoint ready for reading or writing.
protected Record	readImpl() Overridden by subclasses to read the next record from this DataReader.
SequenceReader	remove(DataReader reader)
SequenceReader	removeAllDataReader()

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

getBufferSize, getNestedReader, getRootReader, peek, pop, push, read, skip

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

assertNotOpened, assertOpened, decrementRecordCount, exception, exception, exception, finalize, getRecordCount, getRecordCountAsBigInteger, getRecordCountAsString, getState, incrementRecordCount, isClosed, isOpen, isRecordCountBigInteger, resetRecordCount, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceReader

public SequenceReader()

Method Detail

add

public SequenceReader add(DataReader reader)

addExceptionProperties

public DataException addExceptionProperties(DataException exception)

Description copied from class: DataEndpoint

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 DataReader

getCount

public int getCount()

remove

public SequenceReader remove(DataReader reader)

removeAllDataReader

public SequenceReader removeAllDataReader()

get

public DataReader get(int index)

open

public void open()
          throws DataException

Description copied from class: DataEndpoint

Makes this endpoint ready for reading or writing.

Overrides:

open in class DataEndpoint

Throws:

DataException

available

public int available()

Description copied from class: DataReader

Returns the number of records that can probably be read without blocking.

Overrides:

available in class DataReader

close

public void close()
           throws DataException

Description copied from class: DataEndpoint

Indicates that this endpoint has finished reading or writing.

Overrides:

close in class DataEndpoint

Throws:

DataException

readImpl

protected Record readImpl()
                   throws Throwable

Description copied from class: DataReader

Overridden by subclasses to read the next record from this DataReader.

If no record is available, null will be returned.

Specified by:

readImpl in class DataReader

Throws:

Throwable