LoggerPrintWriter (log4j-iostreams 2.19.0)

java.lang.Object
- java.io.Writer
- - java.io.PrintWriter
  - - org.apache.logging.log4j.io.LoggerPrintWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable
```
public class LoggerPrintWriter
extends PrintWriter
```
Logs each line written to a pre-defined level. Can also be configured with a Marker. This class provides an interface that follows the PrintWriter methods in spirit, but doesn't require output to any external writer.
Integration with JDBC logging can be as simple as:
```
     PrintWriter pw = IoBuilder.forLogger().setLevel(Level.DEBUG).buildPrintWriter();
     DriverManager.setLogWriter(pw);
     DataSource ds = ...
     ds.setLogWriter(pw);
 
```
Since:

2.1

Field Summary
- Fields inherited from class java.io.PrintWriter
  out
- Fields inherited from class java.io.Writer
  lock

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`LoggerPrintWriter(ExtendedLogger logger, boolean autoFlush, String fqcn, Level level, Marker marker)`
`protected`	`LoggerPrintWriter(Writer writer, boolean autoFlush, ExtendedLogger logger, String fqcn, Level level, Marker marker)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`LoggerPrintWriter`	`append(char c)`
`LoggerPrintWriter`	`append(CharSequence csq)`
`LoggerPrintWriter`	`append(CharSequence csq, int start, int end)`
`boolean`	`checkError()`
`void`	`close()`
`void`	`flush()`
`LoggerPrintWriter`	`format(Locale l, String format, Object... args)`
`LoggerPrintWriter`	`format(String format, Object... args)`
`void`	`print(boolean b)`
`void`	`print(char c)`
`void`	`print(char[] s)`
`void`	`print(double d)`
`void`	`print(float f)`
`void`	`print(int i)`
`void`	`print(long l)`
`void`	`print(Object obj)`
`void`	`print(String s)`
`LoggerPrintWriter`	`printf(Locale l, String format, Object... args)`
`LoggerPrintWriter`	`printf(String format, Object... args)`
`void`	`println()`
`void`	`println(boolean x)`
`void`	`println(char x)`
`void`	`println(char[] x)`
`void`	`println(double x)`
`void`	`println(float x)`
`void`	`println(int x)`
`void`	`println(long x)`
`void`	`println(Object x)`
`void`	`println(String x)`
`String`	`toString()`
`void`	`write(char[] buf)`
`void`	`write(char[] buf, int off, int len)`
`void`	`write(int c)`
`void`	`write(String s)`
`void`	`write(String s, int off, int len)`

Methods inherited from class java.io.PrintWriter
clearError, setError

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LoggerPrintWriter

protected LoggerPrintWriter(ExtendedLogger logger,
                            boolean autoFlush,
                            String fqcn,
                            Level level,
                            Marker marker)

LoggerPrintWriter

protected LoggerPrintWriter(Writer writer,
                            boolean autoFlush,
                            ExtendedLogger logger,
                            String fqcn,
                            Level level,
                            Marker marker)

Method Detail

append
```
public LoggerPrintWriter append(char c)
```
Specified by:

append in interface Appendable

Overrides:

append in class PrintWriter

append
```
public LoggerPrintWriter append(CharSequence csq)
```
Specified by:

append in interface Appendable

Overrides:

append in class PrintWriter

append

public LoggerPrintWriter append(CharSequence csq,
                                int start,
                                int end)

Specified by:: append in interface Appendable
Overrides:: append in class PrintWriter

checkError
```
public boolean checkError()
```
Overrides:

checkError in class PrintWriter

close
```
public void close()
```
Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class PrintWriter

flush
```
public void flush()
```
Specified by:

flush in interface Flushable

Overrides:

flush in class PrintWriter

format

public LoggerPrintWriter format(Locale l,
                                String format,
                                Object... args)

Overrides:: format in class PrintWriter

format

public LoggerPrintWriter format(String format,
                                Object... args)

Overrides:: format in class PrintWriter

print
```
public void print(boolean b)
```
Overrides:

print in class PrintWriter

print
```
public void print(char c)
```
Overrides:

print in class PrintWriter

print
```
public void print(char[] s)
```
Overrides:

print in class PrintWriter

print
```
public void print(double d)
```
Overrides:

print in class PrintWriter

print
```
public void print(float f)
```
Overrides:

print in class PrintWriter

print
```
public void print(int i)
```
Overrides:

print in class PrintWriter

print
```
public void print(long l)
```
Overrides:

print in class PrintWriter

print
```
public void print(Object obj)
```
Overrides:

print in class PrintWriter

print
```
public void print(String s)
```
Overrides:

print in class PrintWriter

printf

public LoggerPrintWriter printf(Locale l,
                                String format,
                                Object... args)

Overrides:: printf in class PrintWriter

printf

public LoggerPrintWriter printf(String format,
                                Object... args)

Overrides:: printf in class PrintWriter

println
```
public void println()
```
Overrides:

println in class PrintWriter

println
```
public void println(boolean x)
```
Overrides:

println in class PrintWriter

println
```
public void println(char x)
```
Overrides:

println in class PrintWriter

println
```
public void println(char[] x)
```
Overrides:

println in class PrintWriter

println
```
public void println(double x)
```
Overrides:

println in class PrintWriter

println
```
public void println(float x)
```
Overrides:

println in class PrintWriter

println
```
public void println(int x)
```
Overrides:

println in class PrintWriter

println
```
public void println(long x)
```
Overrides:

println in class PrintWriter

println
```
public void println(Object x)
```
Overrides:

println in class PrintWriter

println
```
public void println(String x)
```
Overrides:

println in class PrintWriter

toString
```
public String toString()
```
Overrides:

toString in class Object

write
```
public void write(char[] buf)
```
Overrides:

write in class PrintWriter

write

public void write(char[] buf,
                  int off,
                  int len)

Overrides:: write in class PrintWriter

write
```
public void write(int c)
```
Overrides:

write in class PrintWriter

write
```
public void write(String s)
```
Overrides:

write in class PrintWriter

write

public void write(String s,
                  int off,
                  int len)

Overrides:: write in class PrintWriter

Copyright © 1999-2022 The Apache Software Foundation. All Rights Reserved.
Apache Logging, Apache Log4j, Log4j, Apache, the Apache feather logo, the Apache Logging project logo, and the Apache Log4j logo are trademarks of The Apache Software Foundation.

Class LoggerPrintWriter

Field Summary

Fields inherited from class java.io.PrintWriter

Fields inherited from class java.io.Writer

Constructor Summary

Method Summary

Methods inherited from class java.io.PrintWriter

Methods inherited from class java.lang.Object

Constructor Detail

LoggerPrintWriter

LoggerPrintWriter

Method Detail

append

append

append

checkError

close

flush

format

format

print

print

print

print

print

print

print

print

print

printf

printf

println

println

println

println

println

println

println

println

println

println

toString

write

write

write

write

write