univocity-parsers 2.9.1 · com.univocity.parsers.common.processor.RowWriterProcessor

The essential callback interface to convert input objects into a manageable format for writing. Used by any writer that extends AbstractWriter.

When writing to an output, the writer will obtain the RowWriterProcessor from CommonWriterSettings#getRowWriterProcessor(), and invoke RowWriterProcessor#write(Object, NormalizedString[], int[]) to convert the input to an array of objects. This array of objects will in turn be handed to the writer to produce a record in the expected format.

univocity-parsers provides some useful default implementations of this interface in the package com.univocity.parsers.common.processor, namely:

ObjectRowWriterProcessor: used for executing conversions of Object values on input rows using instances of Conversion before writing to the output
BeanWriterProcessor: used for converting javabeans annotated with the annotations provided in package com.univocity.parsers.annotations into an object row before writing to the output

Method Summary

Modifier and Type Method and Description

Modifier and Type	Method and Description
public Object[]	Returns: an Object array that is suitable for writing. If null or an empty array is returned then the writer might either skip this value or write an empty record (if `CommonSettings#getSkipEmptyLines()` is false) write(T The original input record that must be converted into an Object array before writing to an output. input, NormalizedString[] All field names used to produce records in a given destination. May be null if no headers have been defined in `CommonSettings#getHeaders()` headers, int[] The indexes of the headers that are actually being written. May be null if no fields have been selected using `CommonSettings#selectFields(String...)` or `CommonSettings#selectIndexes(Integer...)` indexesToWrite) Converts the given input into an Object array that is suitable for writing.

public Object[]

Returns:

an Object array that is suitable for writing. If null or an empty array is returned then the writer might either skip this value or write an empty record (if CommonSettings#getSkipEmptyLines() is false)

write(T

The original input record that must be converted into an Object array before writing to an output.

input, NormalizedString[]

All field names used to produce records in a given destination. May be null if no headers have been defined in CommonSettings#getHeaders()

headers, int[]

The indexes of the headers that are actually being written. May be null if no fields have been selected using CommonSettings#selectFields(String...) or CommonSettings#selectIndexes(Integer...)

indexesToWrite)

Converts the given input into an Object array that is suitable for writing.

Method Detail

write back to summary

write	back to summary
public Object[] write(T input, NormalizedString[] headers, int[] indexesToWrite) Converts the given input into an Object array that is suitable for writing. Used by format-specific writers that extend `AbstractWriter`. Parameters input:T The original input record that must be converted into an Object array before writing to an output. headers:NormalizedString[] All field names used to produce records in a given destination. May be null if no headers have been defined in `CommonSettings#getHeaders()` indexesToWrite:int[] The indexes of the headers that are actually being written. May be null if no fields have been selected using `CommonSettings#selectFields(String...)` or `CommonSettings#selectIndexes(Integer...)` Returns:Object[] an Object array that is suitable for writing. If null or an empty array is returned then the writer might either skip this value or write an empty record (if `CommonSettings#getSkipEmptyLines()` is false) See Also `CsvWriter`, `FixedWidthWriter`, `CommonSettings`, `AbstractWriter`

public Object[] write(T input, NormalizedString[] headers, int[] indexesToWrite)

Converts the given input into an Object array that is suitable for writing. Used by format-specific writers that extend AbstractWriter.

Parameters

input:T: The original input record that must be converted into an Object array before writing to an output.
headers:NormalizedString[]: All field names used to produce records in a given destination. May be null if no headers have been defined in CommonSettings#getHeaders()
indexesToWrite:int[]: The indexes of the headers that are actually being written. May be null if no fields have been selected using CommonSettings#selectFields(String...) or CommonSettings#selectIndexes(Integer...)

Returns:Object[]

public Interface RowWriterProcessor<T>

Method Summary

Method Detail