GrailsPrintWriter (grails-web 2.3.8 API)

java.lang.Object
- java.io.Writer
- - org.codehaus.groovy.grails.web.util.GrailsPrintWriter

All Implemented Interfaces:

groovy.lang.GroovyObject, java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.AutoCloseable, org.codehaus.groovy.grails.support.encoding.EncodedAppenderWriterFactory, GrailsWrappedWriter

Direct Known Subclasses:

CodecPrintWriter, FastStringWriter, GrailsLazyProxyPrintWriter
```
public class GrailsPrintWriter
extends java.io.Writer
implements GrailsWrappedWriter, org.codehaus.groovy.grails.support.encoding.EncodedAppenderWriterFactory, groovy.lang.GroovyObject
```
PrintWriter implementation that doesn't have synchronization. null object references are ignored in print methods (nothing gets printed)

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`allowUnwrappingOut`
`protected static char[]`	`CRLF`
`protected static org.apache.commons.logging.Log`	`LOG`
`protected java.io.Writer`	`out`
`protected java.io.Writer`	`previousOut`
`protected java.io.Writer`	`streamCharBufferTarget`
`protected boolean`	`trouble`
`protected boolean`	`usageFlag`

Fields inherited from class java.io.Writer
lock

Constructor Summary

Constructors
Constructor and Description

GrailsPrintWriter(java.io.Writer out)

Constructors
Constructor and Description
`GrailsPrintWriter(java.io.Writer out)`

Method Summary

Methods
Modifier and Type	Method and Description
`GrailsPrintWriter`	`append(char c)`
`GrailsPrintWriter`	`append(java.lang.CharSequence csq)`
`GrailsPrintWriter`	`append(java.lang.CharSequence csq, int start, int end)`
`GrailsPrintWriter`	`append(java.lang.Object obj)`
`void`	`append(StreamCharBuffer otherBuffer)`
`java.io.PrintWriter`	`asPrintWriter()`
`java.lang.Object`	`asType(java.lang.Class<?> clazz)`
`boolean`	`checkError()` Flush the stream if it's not closed and check its error state.
`protected java.lang.Object`	`clone()`
`void`	`close()`
`protected java.io.Writer`	`findStreamCharBufferTarget(boolean markUsed)`
`void`	`flush()` Flush the stream.
`groovy.lang.MetaClass`	`getMetaClass()`
`java.io.Writer`	`getOut()`
`java.lang.Object`	`getProperty(java.lang.String property)`
`java.io.Writer`	`getWriterForEncoder(org.codehaus.groovy.grails.support.encoding.Encoder encoder, org.codehaus.groovy.grails.support.encoding.EncodingStateRegistry encodingStateRegistry)`
`java.lang.Object`	`invokeMethod(java.lang.String name, java.lang.Object args)`
`boolean`	`isAllowUnwrappingOut()`
`boolean`	`isDestinationActivated()`
`boolean`	`isUsed()`
`GrailsPrintWriter`	`leftShift(org.codehaus.groovy.runtime.GStringImpl gstring)`
`GrailsPrintWriter`	`leftShift(java.lang.Object value)` Provides Groovy << left shift operator, but intercepts call to make sure nulls are converted to "" strings
`GrailsPrintWriter`	`leftShift(StreamCharBuffer otherBuffer)`
`GrailsPrintWriter`	`leftShift(java.lang.String string)`
`GrailsPrintWriter`	`leftShift(groovy.lang.Writable writable)`
`void`	`markUsed()`
`GrailsPrintWriter`	`plus(java.lang.Object value)`
`void`	`print(boolean b)` delegate methods, not synchronized
`void`	`print(char c)`
`void`	`print(char[] s)`
`void`	`print(double d)`
`void`	`print(float f)`
`void`	`print(org.codehaus.groovy.runtime.GStringImpl gstring)`
`void`	`print(int i)`
`void`	`print(long l)`
`void`	`print(java.lang.Object obj)` Print an object.
`void`	`print(StreamCharBuffer otherBuffer)`
`void`	`print(java.lang.String s)` Print a string.
`void`	`print(groovy.lang.Writable writable)`
`void`	`println()`
`void`	`println(boolean b)`
`void`	`println(char c)`
`void`	`println(char[] c)`
`void`	`println(double d)`
`void`	`println(float f)`
`void`	`println(int i)`
`void`	`println(long l)`
`void`	`println(java.lang.Object o)`
`void`	`println(StreamCharBuffer otherBuffer)`
`void`	`println(java.lang.String s)`
`boolean`	`resetUsed()`
`void`	`setError()`
`void`	`setMetaClass(groovy.lang.MetaClass metaClass)`
`void`	`setOut(java.io.Writer newOut)`
`void`	`setProperty(java.lang.String property, java.lang.Object newValue)`
`void`	`setUsed(boolean newUsed)`
`java.io.Writer`	`unwrap()`
`protected java.io.Writer`	`unwrapWriter(java.io.Writer writer)`
`void`	`write(char[] buf)`
`void`	`write(char[] buf, int off, int len)` Write a portion of an array of characters.
`void`	`write(int c)` Write a single character.
`void`	`write(StreamCharBuffer otherBuffer)`
`void`	`write(java.lang.String s)` Writes a string.
`void`	`write(java.lang.String s, int off, int len)` Write a portion of a string.
`void`	`write(groovy.lang.Writable writable)`
`protected void`	`writeWritable(groovy.lang.Writable writable)`

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

Field Detail

LOG

protected static final org.apache.commons.logging.Log LOG

CRLF
```
protected static final char[] CRLF
```

trouble
```
protected boolean trouble
```

out
```
protected java.io.Writer out
```

allowUnwrappingOut
```
protected boolean allowUnwrappingOut
```

usageFlag
```
protected boolean usageFlag
```

streamCharBufferTarget

protected java.io.Writer streamCharBufferTarget

previousOut
```
protected java.io.Writer previousOut
```

Constructor Detail

GrailsPrintWriter

public GrailsPrintWriter(java.io.Writer out)

Method Detail
- isAllowUnwrappingOut
```
public boolean isAllowUnwrappingOut()
```
  Specified by:
  
  isAllowUnwrappingOut in interface GrailsWrappedWriter
- unwrap
```
public java.io.Writer unwrap()
```
  Specified by:
  
  unwrap in interface GrailsWrappedWriter
- isDestinationActivated
```
public boolean isDestinationActivated()
```
- getOut
```
public java.io.Writer getOut()
```
- setOut
```
public void setOut(java.io.Writer newOut)
```
- unwrapWriter
```
protected java.io.Writer unwrapWriter(java.io.Writer writer)
```
- leftShift
```
public GrailsPrintWriter leftShift(java.lang.Object value)
                            throws java.io.IOException
```
  Provides Groovy << left shift operator, but intercepts call to make sure nulls are converted to "" strings
  
  Parameters:
  value - The value
  
  Returns:
  Returns this object
  
  Throws:
  
  java.io.IOException
- plus
```
public GrailsPrintWriter plus(java.lang.Object value)
                       throws java.io.IOException
```
  Throws:
  
  java.io.IOException
- checkError
```
public boolean checkError()
```
  Flush the stream if it's not closed and check its error state. Errors are cumulative; once the stream encounters an error, this routine will return true on all successive calls.
  
  Returns:
  true if the print stream has encountered an error, either on the underlying output stream or during a format conversion.
- setError
```
public void setError()
```
- flush
```
public void flush()
```
  Flush the stream.
  
  Specified by:
  
  flush in interface java.io.Flushable
  
  Specified by:
  
  flush in class java.io.Writer
  
  See Also:
  checkError()
- print
```
public void print(java.lang.Object obj)
```
  Print an object. The string produced by the String.valueOf(Object) method is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.
  
  Parameters:
  obj - The Object to be printed
  See Also:
  Object.toString()
- print
```
public void print(java.lang.String s)
```
  Print a string. If the argument is null then the string "" is printed. Otherwise, the string's characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.
  
  Parameters:
  s - The String to be printed
- write
```
public void write(java.lang.String s)
```
  Writes a string. If the argument is null then the string "" is printed.
  
  Overrides:
  
  write in class java.io.Writer
  
  Parameters:
  s - The String to be printed
- write
```
public void write(int c)
```
  Write a single character.
  
  Overrides:
  
  write in class java.io.Writer
  
  Parameters:
  c - int specifying a character to be written.
- write
```
public void write(char[] buf,
         int off,
         int len)
```
  Write a portion of an array of characters.
  
  Specified by:
  
  write in class java.io.Writer
  
  Parameters:
  buf - Array of characters
  off - Offset from which to start writing characters
  len - Number of characters to write
- write
```
public void write(java.lang.String s,
         int off,
         int len)
```
  Write a portion of a string.
  
  Overrides:
  
  write in class java.io.Writer
  
  Parameters:
  s - A String
  off - Offset from which to start writing characters
  len - Number of characters to write
- write
```
public void write(char[] buf)
```
  Overrides:
  
  write in class java.io.Writer
- print
```
public void print(boolean b)
```
  delegate methods, not synchronized
- print
```
public void print(char c)
```
- print
```
public void print(int i)
```
- print
```
public void print(long l)
```
- print
```
public void print(float f)
```
- print
```
public void print(double d)
```
- print
```
public void print(char[] s)
```
- println
```
public void println()
```
- println
```
public void println(boolean b)
```
- println
```
public void println(char c)
```
- println
```
public void println(int i)
```
- println
```
public void println(long l)
```
- println
```
public void println(float f)
```
- println
```
public void println(double d)
```
- println
```
public void println(char[] c)
```
- println
```
public void println(java.lang.String s)
```
- println
```
public void println(java.lang.Object o)
```
- append
```
public GrailsPrintWriter append(char c)
```
  Specified by:
  
  append in interface java.lang.Appendable
  
  Overrides:
  
  append in class java.io.Writer
- append
```
public GrailsPrintWriter append(java.lang.CharSequence csq,
                       int start,
                       int end)
```
  Specified by:
  
  append in interface java.lang.Appendable
  
  Overrides:
  
  append in class java.io.Writer
- append
```
public GrailsPrintWriter append(java.lang.CharSequence csq)
```
  Specified by:
  
  append in interface java.lang.Appendable
  
  Overrides:
  
  append in class java.io.Writer
- append
```
public GrailsPrintWriter append(java.lang.Object obj)
```
- clone
```
protected java.lang.Object clone()
                          throws java.lang.CloneNotSupportedException
```
  Overrides:
  
  clone in class java.lang.Object
  
  Throws:
  
  java.lang.CloneNotSupportedException
- write
```
public void write(StreamCharBuffer otherBuffer)
```
- findStreamCharBufferTarget
```
protected java.io.Writer findStreamCharBufferTarget(boolean markUsed)
```
- print
```
public void print(StreamCharBuffer otherBuffer)
```
- append
```
public void append(StreamCharBuffer otherBuffer)
```
- println
```
public void println(StreamCharBuffer otherBuffer)
```
- leftShift
```
public GrailsPrintWriter leftShift(StreamCharBuffer otherBuffer)
```
- write
```
public void write(groovy.lang.Writable writable)
```
- writeWritable
```
protected void writeWritable(groovy.lang.Writable writable)
```
- print
```
public void print(groovy.lang.Writable writable)
```
- leftShift
```
public GrailsPrintWriter leftShift(groovy.lang.Writable writable)
```
- print
```
public void print(org.codehaus.groovy.runtime.GStringImpl gstring)
```
- leftShift
```
public GrailsPrintWriter leftShift(org.codehaus.groovy.runtime.GStringImpl gstring)
```
- leftShift
```
public GrailsPrintWriter leftShift(java.lang.String string)
```
- isUsed
```
public boolean isUsed()
```
- setUsed
```
public void setUsed(boolean newUsed)
```
- resetUsed
```
public boolean resetUsed()
```
- close
```
public void close()
```
  Specified by:
  
  close in interface java.io.Closeable
  
  Specified by:
  
  close in interface java.lang.AutoCloseable
  
  Specified by:
  
  close in class java.io.Writer
- markUsed
```
public void markUsed()
```
  Specified by:
  
  markUsed in interface GrailsWrappedWriter
- asType
```
public java.lang.Object asType(java.lang.Class<?> clazz)
```
- asPrintWriter
```
public java.io.PrintWriter asPrintWriter()
```
- getWriterForEncoder
```
public java.io.Writer getWriterForEncoder(org.codehaus.groovy.grails.support.encoding.Encoder encoder,
                                 org.codehaus.groovy.grails.support.encoding.EncodingStateRegistry encodingStateRegistry)
```
  Specified by:
  
  getWriterForEncoder in interface org.codehaus.groovy.grails.support.encoding.EncodedAppenderWriterFactory
- getProperty
```
public java.lang.Object getProperty(java.lang.String property)
```
  Specified by:
  
  getProperty in interface groovy.lang.GroovyObject
- setProperty
```
public void setProperty(java.lang.String property,
               java.lang.Object newValue)
```
  Specified by:
  
  setProperty in interface groovy.lang.GroovyObject
- invokeMethod
```
public java.lang.Object invokeMethod(java.lang.String name,
                            java.lang.Object args)
```
  Specified by:
  
  invokeMethod in interface groovy.lang.GroovyObject
- getMetaClass
```
public groovy.lang.MetaClass getMetaClass()
```
  Specified by:
  
  getMetaClass in interface groovy.lang.GroovyObject
- setMetaClass
```
public void setMetaClass(groovy.lang.MetaClass metaClass)
```
  Specified by:
  
  setMetaClass in interface groovy.lang.GroovyObject

Class GrailsPrintWriter

Field Summary

Fields inherited from class java.io.Writer

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LOG

CRLF

trouble

out

allowUnwrappingOut

usageFlag

streamCharBufferTarget

previousOut

Constructor Detail

GrailsPrintWriter

Method Detail

isAllowUnwrappingOut

unwrap

isDestinationActivated

getOut

setOut

unwrapWriter

leftShift

plus

checkError

setError

flush

print

print

write

write

write

write

write

print

print

print

print

print

print

print

println

println

println

println

println

println

println

println

println

println

append

append

append

append

clone

write

findStreamCharBufferTarget

print

append

println

leftShift

write

writeWritable

print

leftShift

print

leftShift

leftShift

isUsed

setUsed

resetUsed

close

markUsed

asType

asPrintWriter

getWriterForEncoder

getProperty