com.northconcepts.datapipeline.memory

Class CollectionWriter

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.memory.CollectionWriter

public class CollectionWriter
extends DataWriter

Copies the values in specific fields to an in-memory Collection. See FieldPath for supported field name expressions.

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

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
CollectionWriter()

Method Summary

Modifier and Type	Method and Description
CollectionWriter	collect(String sourceField, Collection targetCollection)
<T extends Collection<?>> T	getCollection(String fieldPath)
protected void	writeImpl(Record record) Overridden by subclasses to write the specified record to this DataWriter.

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

addExceptionProperties, available, getNestedEndpoint, getNestedWriter, getRootEndpoint, getRootWriter, getWriter, write

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

close, decrementRecordCount, enableJmx, getLastRecord, getRecordCount, getRecordCountAsBigInteger, getRecordCountAsString, incrementRecordCount, isRecordCountBigInteger, open, 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

Constructor Detail

CollectionWriter

public CollectionWriter()

Method Detail

collect

public CollectionWriter collect(String sourceField,
                                Collection targetCollection)

Parameters:

sourceField - the field to retrieve values from.

targetCollection - the collection to add the source field's values to.

Returns:

getCollection

public <T extends Collection<?>> T getCollection(String fieldPath)

writeImpl

protected void writeImpl(Record record)
                  throws Throwable

Description copied from class: DataWriter

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

Contract for subclasses (see also docs/authoring/DataWriter.md):

• Do not call this method directly — DataWriter.write(Record) is the template method that wraps exceptions, increments the record count, and attaches the offending record to thrown DataExceptions.
• Do not call DataEndpoint.incrementRecordCount() here; DataWriter.write(Record) already does.
• Throw raw exceptions; DataWriter.write(Record) wraps them via exception(throwable).setRecord(record).

Specified by:

writeImpl in class DataWriter

Throws:

Throwable