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## grails.converters
Class JSON

    java.lang.Object
      org.codehaus.groovy.grails.web.converters.AbstractConverter<JSONWriter>
          grails.converters.JSON

All Implemented Interfaces:
  Converter<JSONWriter>

Direct Known Subclasses:
  JSON

    public class JSON

extends AbstractConverter<JSONWriter>
implements Converter<JSONWriter>

A converter that converts domain classes, Maps, Lists, Arrays, POJOs and POGOs to JSON

Author:
  Siegfried Puchbauer, Graeme Rocher

Nested Class Summary
`class` | `JSON.Builder`

Nested classes/interfaces inherited from interface org.codehaus.groovy.grails.web.converters.Converter
`Converter.CircularReferenceBehaviour`

Field Summary
`protected Stack<Object>` | `referenceStack`
`protected JSONWriter` | `writer`

Fields inherited from interface org.codehaus.groovy.grails.web.converters.Converter
`DEFAULT_REQUEST_ENCODING`

Constructor Summary
`JSON()` Default Constructor for a JSON Converter
`JSON(Object target)` Creates a new JSON Converter for the given Object

Method Summary
`void` | `build(groovy.lang.Closure c)`
`void` | `convertAnother(Object o)`
`static void` | `createNamedConfig(String name, groovy.lang.Closure callable)`
`int` | `getDepth()`
`static ConverterConfiguration<JSON>` | `getNamedConfig(String configName)`
`JSONWriter` | `getWriter()`
`protected void` | `handleCircularRelationship(Object o)`
`protected ConverterConfiguration<JSON>` | `initConfig()`
`ObjectMarshaller<JSON>` | `lookupObjectMarshaller(Object target)`
`static Object` | `parse(HttpServletRequest request)` Parses the given request's InputStream and returns ether a JSONObject or a JSONArry
`static JSONElement` | `parse(InputStream is, String encoding)` Parses the given JSON and returns ether a JSONObject or a JSONArry
`static JSONElement` | `parse(Reader reader)` Parses the given JSON String and returns ether a JSONObject or a JSONArry
`static JSONElement` | `parse(String source)` Parses the given JSON String and returns ether a JSONObject or a JSONArry
`void` | `property(String key, Object value)`
`static void` | `registerObjectMarshaller(Class clazz, groovy.lang.Closure callable)`
`static void` | `registerObjectMarshaller(Class clazz, int priority, groovy.lang.Closure callable)`
`static void` | `registerObjectMarshaller(ObjectMarshaller<JSON> om)`
`static void` | `registerObjectMarshaller(ObjectMarshaller<JSON> om, int priority)`
`void` | `render(HttpServletResponse response)` Directs the JSON Writer to the Outputstream of the HttpServletResponse and sets the Content-Type to application/json
`void` | `render(Writer out)` Directs the JSON Writer to the given Writer
`void` | `setPrettyPrint(boolean prettyPrint)`
`void` | `setTarget(Object target)` Sets the Object which is later converted to JSON
`String` | `toString(boolean prettyPrint)` Performs the conversion and returns the resulting JSON as String
`static void` | `use(String cfgName)`
`static Object` | `use(String configName, groovy.lang.Closure callable)`
`void` | `value(Object o)`
`static void` | `withDefaultConfiguration(groovy.lang.Closure callable)`

Methods inherited from class org.codehaus.groovy.grails.web.converters.AbstractConverter
`createBeanWrapper, toString`

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

Field Detail

### writer

    protected JSONWriter writer

### referenceStack

    protected Stack<Object> referenceStack

Constructor Detail

### JSON

    public JSON()

  Default Constructor for a JSON Converter

### JSON

    public JSON(Object target)

  Creates a new JSON Converter for the given Object

  Parameters:
    `target` - the Object to convert

Method Detail

### initConfig

    protected ConverterConfiguration<JSON> initConfig()

### setPrettyPrint

    public void setPrettyPrint(boolean prettyPrint)

### render

    public void render(Writer out)
                throws ConverterException

  Directs the JSON Writer to the given Writer

  Specified by:
    `render` in interface `Converter<JSONWriter>`
  Parameters:
    `out` - the Writer
  Throws:
    `ConverterException`

### render

    public void render(HttpServletResponse response)
                throws ConverterException

  Directs the JSON Writer to the Outputstream of the HttpServletResponse and sets the Content-Type to application/json

  Specified by:
    `render` in interface `Converter<JSONWriter>`
  Parameters:
    `response` - a HttpServletResponse
  Throws:
    `ConverterException`

### getWriter

    public JSONWriter getWriter()
                         throws ConverterException

  Specified by:
    `getWriter` in interface `Converter<JSONWriter>`
  Throws:
    `ConverterException`

### convertAnother

    public void convertAnother(Object o)
                        throws ConverterException

  Specified by:
    `convertAnother` in interface `Converter<JSONWriter>`
  Throws:
    `ConverterException`

### build

    public void build(groovy.lang.Closure c)
               throws ConverterException

  Specified by:
    `build` in interface `Converter<JSONWriter>`
  Throws:
    `ConverterException`

### value

    public void value(Object o)
               throws ConverterException

  Parameters:
    `o` -
  Throws:
    `ConverterException`

### lookupObjectMarshaller

    public ObjectMarshaller<JSON> lookupObjectMarshaller(Object target)

  Specified by:
    `lookupObjectMarshaller` in interface `Converter<JSONWriter>`

### getDepth

    public int getDepth()

### property

    public void property(String key,
                         Object value)
                  throws JSONException,
                         ConverterException

  Throws:
    `JSONException`
    `ConverterException`

### toString

    public String toString(boolean prettyPrint)
                    throws JSONException

  Performs the conversion and returns the resulting JSON as String

  Parameters:
    `prettyPrint` - true, if the output should be indented, otherwise false
  Returns:
    a JSON String
  Throws:
    `JSONException`

### parse

    public static JSONElement parse(Reader reader)
                             throws ConverterException

  Parses the given JSON String and returns ether a JSONObject or a JSONArry

  Parameters:
    `reader` - JSON source
  Returns:
    ether a JSONObject or a JSONArray - depending on the given JSON
  Throws:
    `ConverterException` - when the JSON content is not valid

### parse

    public static JSONElement parse(String source)
                             throws ConverterException

  Parses the given JSON String and returns ether a JSONObject or a JSONArry

  Parameters:
    `source` - A string containing some JSON
  Returns:
    ether a JSONObject or a JSONArray - depending on the given JSON
  Throws:
    `ConverterException` - when the JSON content is not valid

### parse

    public static JSONElement parse(InputStream is,
                                    String encoding)
                             throws ConverterException

  Parses the given JSON and returns ether a JSONObject or a JSONArry

  Parameters:
    `is` - An InputStream which delivers some JSON
    `encoding` - the Character Encoding to use
  Returns:
    ether a JSONObject or a JSONArray - depending on the given JSON
  Throws:
    `ConverterException` - when the JSON content is not valid

### parse

    public static Object parse(HttpServletRequest request)
                        throws ConverterException

  Parses the given request's InputStream and returns ether a JSONObject or a JSONArry

  Parameters:
    `request` - the JSON Request
  Returns:
    ether a JSONObject or a JSONArray - depending on the given JSON
  Throws:
    `ConverterException` - when the JSON content is not valid

### setTarget

    public void setTarget(Object target)

  Sets the Object which is later converted to JSON

  Specified by:
    `setTarget` in class `AbstractConverter<JSONWriter>`
  Parameters:
    `target` - the Object
  See Also:
    `Converter`

### handleCircularRelationship

    protected void handleCircularRelationship(Object o)
                                       throws ConverterException

  Throws:
    `ConverterException`

### getNamedConfig

    public static ConverterConfiguration<JSON> getNamedConfig(String configName)
                                                       throws ConverterException

  Throws:
    `ConverterException`

### use

    public static Object use(String configName,
                             groovy.lang.Closure callable)
                      throws ConverterException

  Throws:
    `ConverterException`

### use

    public static void use(String cfgName)
                    throws ConverterException

  Throws:
    `ConverterException`

### registerObjectMarshaller

    public static void registerObjectMarshaller(Class clazz,
                                                groovy.lang.Closure callable)
                                         throws ConverterException

  Throws:
    `ConverterException`

### registerObjectMarshaller

    public static void registerObjectMarshaller(Class clazz,
                                                int priority,
                                                groovy.lang.Closure callable)
                                         throws ConverterException

  Throws:
    `ConverterException`

### registerObjectMarshaller

    public static void registerObjectMarshaller(ObjectMarshaller<JSON> om)
                                         throws ConverterException

  Throws:
    `ConverterException`

### registerObjectMarshaller

    public static void registerObjectMarshaller(ObjectMarshaller<JSON> om,
                                                int priority)
                                         throws ConverterException

  Throws:
    `ConverterException`

### createNamedConfig

    public static void createNamedConfig(String name,
                                         groovy.lang.Closure callable)
                                  throws ConverterException

  Throws:
    `ConverterException`

### withDefaultConfiguration

    public static void withDefaultConfiguration(groovy.lang.Closure callable)
                                         throws ConverterException

  Throws:
    `ConverterException`

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