Package com.github.timo_reymann.csv_parser.io

Class CsvWriter<T>

java.lang.Object

com.github.timo_reymann.csv_parser.io.CsvWriter<T>

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class CsvWriter<T>
extends Object
implements AutoCloseable, Closeable, Flushable

Write csv files

Since:

20.12.17

Author:

Timo Reymann

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CsvWriter.Builder<T>

Constructor Summary

Constructors

Constructor	Description
CsvWriter(Class<T> clazz, File file, boolean append, boolean hasHeadings, String seperator)	Create new csv writer

Method Summary

Modifier and Type	Method	Description
void	close()	Close underyling BufferedWriter and FileWriter
void	flush()	Flush underlying BufferedWriter and FileWriter
void	writeFileHeading()	Write only file headings to file without any data
void	writeLine(List<T> beans)	Write beans to file
void	writeLine(T bean)	Write bean to file

Methods inherited from class java.lang.Object

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

Constructor Detail

CsvWriter

public CsvWriter(Class<T> clazz,
                 File file,
                 boolean append,
                 boolean hasHeadings,
                 String seperator)
          throws IOException

Create new csv writer

Parameters:

clazz - Class for bean

file - File to write

append - Append to output

hasHeadings - Has the file headings, if this is a new file headers are automatically generated

seperator - Seperator for csv file

Throws:

IOException - Error opening file streams

Method Detail

writeFileHeading

public void writeFileHeading()
                      throws IllegalAccessException,
                             InstantiationException,
                             IOException

Write only file headings to file without any data

Throws:

IllegalAccessException - Error getting fields of entity

InstantiationException - Error creating new instance of entity

IOException - Error writing to file

writeLine

public void writeLine(T bean)
               throws IllegalAccessException,
                      IOException

Write bean to file

Parameters:

bean - Bean to write

Throws:

IllegalAccessException - Error getting value from object

IOException - Error writing to file

writeLine

public void writeLine(List<T> beans)
               throws IOException,
                      IllegalAccessException

Write beans to file

Parameters:

beans - Beans to write

Throws:

IllegalAccessException - Error getting value from object

IOException - Error writing to file

flush

public void flush()
           throws IOException

Flush underlying BufferedWriter and FileWriter

Specified by:

flush in interface Flushable

Throws:

IOException - Error flushing

close

public void close()
           throws IOException

Close underyling BufferedWriter and FileWriter

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException - Error close writers