TransformerBase.TranslatorSupport (Geotools modules 29-SNAPSHOT API)

Object
- TransformerBase.TranslatorSupport

All Implemented Interfaces:

Translator

Direct Known Subclasses:

FeatureTransformer.FeatureTranslator, FeatureTypeTransformer.FeatureTypeTranslator, FilterTransformer.FilterTranslator, GeometryTransformer.GeometryTranslator

Enclosing class:

TransformerBase
```
protected abstract static class TransformerBase.TranslatorSupport
extends Object
implements Translator
```
Support for writing Translators.

Field Summary

Fields
Modifier and Type	Field and Description
`protected ContentHandler`	`contentHandler`
`protected NamespaceSupport`	`nsSupport`
`protected Attributes`	`NULL_ATTS`
`protected boolean`	`running` Subclasses should check this flag in case an abort message was sent and stop any internal iteration if false.
`protected TransformerBase.SchemaLocationSupport`	`schemaLocation`

Constructor Summary

Constructors
Constructor and Description
`TranslatorSupport(ContentHandler contentHandler, String prefix, String nsURI)`
`TranslatorSupport(ContentHandler contentHandler, String prefix, String nsURI, TransformerBase.SchemaLocationSupport schemaLocation)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`abort()` Abort any translating activity.
`protected void`	`addNamespaceDeclarations(TransformerBase.TranslatorSupport trans)` Utility method to copy namespace declarations from "sub" translators into this ns support...
`protected void`	`cdata(String cdata)`
`protected void`	`chars(String text)`
`protected void`	`comment(String comment)`
`protected void`	`commit()` Commit pending write operations.
`protected AttributesImpl`	`createAttributes(String[] nameValuePairs)` Utility method for creating attributes from an array of name value pairs.
`protected void`	`element(String element, String content)`
`protected void`	`element(String element, String content, Attributes atts)`
`protected void`	`elementSafe(String element, String content)` Will only issue the provided element if content is non empty
`protected void`	`end(String element)`
`String`	`getDefaultNamespace()` Get the default URI used by this Translator for encoding.
`String`	`getDefaultPrefix()` Get the default prefix used by this Translator for encoding.
`NamespaceSupport`	`getNamespaceSupport()` Obtain the namespace prefixes and URIs to be included in the output document.
`TransformerBase.SchemaLocationSupport`	`getSchemaLocationSupport()` Gets the location of the schemas used in this translator.
`protected void`	`mark()` Set a mark() to which we can later "roll back" writes.
`protected void`	`reset()` Discard pending write operations after a mark() has been set.
`protected void`	`start(String element)`
`protected void`	`start(String element, Attributes atts)`

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Translator
encode

- Field Detail
  - contentHandler
```
protected final ContentHandler contentHandler
```
  - NULL_ATTS
```
protected final Attributes NULL_ATTS
```
  - nsSupport
```
protected NamespaceSupport nsSupport
```
  - schemaLocation
```
protected TransformerBase.SchemaLocationSupport schemaLocation
```
  - running
```
protected volatile boolean running
```
    Subclasses should check this flag in case an abort message was sent and stop any internal iteration if false.
- Constructor Detail
  - TranslatorSupport
```
public TranslatorSupport(ContentHandler contentHandler,
                         String prefix,
                         String nsURI)
```
  - TranslatorSupport
```
public TranslatorSupport(ContentHandler contentHandler,
                         String prefix,
                         String nsURI,
                         TransformerBase.SchemaLocationSupport schemaLocation)
```
- Method Detail
  - abort
```
public void abort()
```
    Description copied from interface: Translator
    
    Abort any translating activity. This is needed as some translators iterate internally on a data structure. The abort method should silently fail or succeed based upon the state of a translation.
    
    Specified by:
    
    abort in interface Translator
  - mark
```
protected void mark()
```
    Set a mark() to which we can later "roll back" writes. After a call to mark(), the Translator stores pending write operations in memory until commit() is called. The pending writes can be discarded with the reset() method.
    Typically, one would use marks in conjunction with an exception handler:
```
   void encodeFoo(Foo f) {
     try {
       mark();
       element(foo.riskyMethod());
       element(foo.dangerousMethod());
       commit();
     } catch (BadThingHappened disaster) {
         mitigate(disaster);
         reset();
     }
   }
 
```
    Throws:
    
    IllegalStateException - if a mark is already set
  - reset
```
protected void reset()
```
    Discard pending write operations after a mark() has been set.
    This method is safe to call even if no mark is set - so it returns to a "known good" state as far as marks are concerned.
    
    See Also:
    
    mark()
  - commit
```
protected void commit()
```
    Commit pending write operations. After setting a mark, this method will commit the pending writes.
    
    Throws:
    
    IllegalStateException - if no mark is set
    
    See Also:
    
    mark()
  - addNamespaceDeclarations
```
protected void addNamespaceDeclarations(TransformerBase.TranslatorSupport trans)
```
    Utility method to copy namespace declarations from "sub" translators into this ns support...
  - createAttributes
```
protected AttributesImpl createAttributes(String[] nameValuePairs)
```
    Utility method for creating attributes from an array of name value pairs.
    The nameValuePairs array should be of the form:
```
{name1,value1,name2,value2,...,nameN,valueN}
```
    Parameters:
    
    nameValuePairs - The attribute names/values.
  - element
```
protected void element(String element,
                       String content)
```
  - elementSafe
```
protected void elementSafe(String element,
                           String content)
```
    Will only issue the provided element if content is non empty
  - element
```
protected void element(String element,
                       String content,
                       Attributes atts)
```
  - start
```
protected void start(String element)
```
  - start
```
protected void start(String element,
                     Attributes atts)
```
  - chars
```
protected void chars(String text)
```
  - end
```
protected void end(String element)
```
  - cdata
```
protected void cdata(String cdata)
```
  - comment
```
protected void comment(String comment)
```
  - getDefaultNamespace
```
public String getDefaultNamespace()
```
    Description copied from interface: Translator
    
    Get the default URI used by this Translator for encoding. Optional.
    
    Specified by:
    
    getDefaultNamespace in interface Translator
  - getDefaultPrefix
```
public String getDefaultPrefix()
```
    Description copied from interface: Translator
    
    Get the default prefix used by this Translator for encoding. Optional.
    
    Specified by:
    
    getDefaultPrefix in interface Translator
  - getNamespaceSupport
```
public NamespaceSupport getNamespaceSupport()
```
    Description copied from interface: Translator
    
    Obtain the namespace prefixes and URIs to be included in the output document.
    
    Specified by:
    
    getNamespaceSupport in interface Translator
    
    Returns:
    
    An instance of NamespaceSupport.
  - getSchemaLocationSupport
```
public TransformerBase.SchemaLocationSupport getSchemaLocationSupport()
```
    Description copied from interface: Translator
    
    Gets the location of the schemas used in this translator. Optional.
    
    Specified by:
    
    getSchemaLocationSupport in interface Translator

Class TransformerBase.TranslatorSupport

Field Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Methods inherited from interface Translator

Field Detail

contentHandler

NULL_ATTS

nsSupport

schemaLocation

running

Constructor Detail

TranslatorSupport

TranslatorSupport

Method Detail

abort

mark

reset

commit

addNamespaceDeclarations

createAttributes

element

elementSafe

element

start

start

chars

end

cdata

comment

getDefaultNamespace

getDefaultPrefix

getNamespaceSupport

getSchemaLocationSupport