Class TailWriter
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.TailWriter
Writes records to an in-memory
RecordList.-
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_KEYFields inherited from class com.northconcepts.datapipeline.core.Endpoint
BUFFER_SIZE, captureElapsedTime, DEFAULT_READ_BUFFER_SIZEFields inherited from class com.northconcepts.datapipeline.core.DataObject
id, log, name, TIMESTAMP_FORMAT -
Constructor Summary
ConstructorsConstructorDescriptionTailWriter(int maxRecords) Creates a writer that keeps only the lastmaxRecordsrecords written; a negative count is rejected. -
Method Summary
Modifier and TypeMethodDescriptionintReturns a new list of the most recent records (the same instances, not copies); safe to call while records flow.protected voidOverridden by subclasses to write the specified record to thisDataWriter.Methods inherited from class com.northconcepts.datapipeline.core.DataWriter
addExceptionProperties, available, getNestedEndpoint, getNestedWriter, getRootEndpoint, getRootWriter, getWriter, writeMethods inherited from class com.northconcepts.datapipeline.core.DataEndpoint
close, decrementRecordCount, enableJmx, getLastRecord, getRecordCount, getRecordCountAsBigInteger, getRecordCountAsString, incrementRecordCount, isRecordCountBigInteger, open, resetRecordCount, toStringMethods 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
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Constructor Details
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TailWriter
public TailWriter(int maxRecords) Creates a writer that keeps only the lastmaxRecordsrecords written; a negative count is rejected.
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Method Details
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getMaxRecords
public int getMaxRecords() -
getSnapshot
Returns a new list of the most recent records (the same instances, not copies); safe to call while records flow. -
writeImpl
Description copied from class:DataWriterOverridden by subclasses to write the specified record to thisDataWriter.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 thrownDataExceptions. - Do not call
DataEndpoint.incrementRecordCount()here;DataWriter.write(Record)already does. - Throw raw exceptions;
DataWriter.write(Record)wraps them viaexception(throwable).setRecord(record).
- Specified by:
writeImplin classDataWriter- Throws:
Throwable
- Do not call this method directly —
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