com.univocity.parsers.common.processor
Class ObjectColumnProcessor

java.lang.Object
  com.univocity.parsers.common.DefaultConversionProcessor
      com.univocity.parsers.common.processor.core.AbstractObjectProcessor<T>
          com.univocity.parsers.common.processor.core.AbstractObjectColumnProcessor<ParsingContext>
              com.univocity.parsers.common.processor.ObjectColumnProcessor

All Implemented Interfaces:

ConversionProcessor, Processor<ParsingContext>, RowProcessor

public class ObjectColumnProcessor
extends AbstractObjectColumnProcessor<ParsingContext>
implements RowProcessor

A RowProcessor implementation for converting rows extracted from any implementation of AbstractParser into columns of objects.

This uses the value conversions provided by Conversion instances.

For each row processed, a sequence of conversions will be executed to generate the appropriate object. Each resulting object will then be stored in a list that contains the values of the corresponding column.

At the end of the process, the user can access the lists with values parsed for all columns using the methods AbstractObjectColumnProcessor.getColumnValuesAsList(), AbstractObjectColumnProcessor.getColumnValuesAsMapOfIndexes() and AbstractObjectColumnProcessor.getColumnValuesAsMapOfNames().

Note: Storing the values of all columns may be memory intensive. For large inputs, use a BatchedObjectColumnProcessor instead

Author:

uniVocity Software Pty Ltd - parsers@univocity.com

See Also:

AbstractParser, RowProcessor, ColumnProcessor, Conversion

Constructor Summary

ObjectColumnProcessor()
Constructs a column processor, pre-allocating room for 1000 rows.

ObjectColumnProcessor(int expectedRowCount)
Constructs a column processor pre-allocating room for the expected number of rows to be processed

Method Summary

Methods inherited from class com.univocity.parsers.common.processor.core.AbstractObjectColumnProcessor

getColumn, getColumn, getColumn, getColumn, getColumnValuesAsList, getColumnValuesAsMapOfIndexes, getColumnValuesAsMapOfNames, getHeaders, processStarted, putColumnValuesInMapOfIndexes, putColumnValuesInMapOfNames, rowProcessed

Methods inherited from class com.univocity.parsers.common.processor.core.AbstractObjectProcessor

processEnded, rowProcessed

Methods inherited from class com.univocity.parsers.common.DefaultConversionProcessor

applyConversions, convertAll, convertFields, convertIndexes, convertType, handleConversionError, initializeConversions, reverseConversions, toDataProcessingException

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.univocity.parsers.common.processor.RowProcessor

processEnded, processStarted, rowProcessed

Constructor Detail

ObjectColumnProcessor

public ObjectColumnProcessor()

Constructs a column processor, pre-allocating room for 1000 rows.

ObjectColumnProcessor

public ObjectColumnProcessor(int expectedRowCount)

Constructs a column processor pre-allocating room for the expected number of rows to be processed

Parameters:

expectedRowCount - the expected number of rows to be processed