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## grails.util
Class OpenRicoBuilder

    java.lang.Object
      groovy.lang.GroovyObjectSupport
          groovy.util.BuilderSupport
              groovy.xml.MarkupBuilder
                  grails.util.OpenRicoBuilder

All Implemented Interfaces:
  groovy.lang.GroovyObject

    public class OpenRicoBuilder

extends groovy.xml.MarkupBuilder

OpenRicoBuilder provides support for creating OpenRico AJAX responses.

If this builder is used in controllers no views should be configured since content will be written to the HttpServletResponse instance. Also no operations should be performed on the response object prior to passing it to this builder.

This builder will set the content type of the response to "text/xml" and will render a correct XML prolog ().

This builder supports no namespaces or hyphens in element and attribute names.

Use this builder to write a OpenRico reponse to the client. Sending a simple DIV tag to the client requires this code:

     new OpenRicoBuilder(response).ajax { element(id:"personInfo") { div(class:"person") } }

Sending object XML to the client requires this code:

     new OpenRicoBuilder(response).ajax { object(id:"formLetterUpdater") {
         person(
             fullName:"Pat Barnes",
             title:"Mr.",
             firstName:"Pat",
             lastName:"Barnes")
         }
     }

The first call on a OpenRicoBuilder instance should be "ajax", the second either "element" (to return HTML) or object (to return XML) both with a required "id" attribute. Violations against these rules will be reported as exceptions.

OpenRico responses can contain multiple element and/or object nodes which is supported by this builder.

When using OpenRicoBuilder in controllers you may need to return a null value at the end of a closure to avoid an UnsupporterReturnValueException.

Since:
  Jul 5, 2005
Author:
  Steven Devijver

Constructor Summary
`OpenRicoBuilder(HttpServletResponse response)`

Method Summary
`protected Object` | `createNode(Object name)`
`protected Object` | `createNode(Object name, Map attributes, Object value)`
`protected Object` | `createNode(Object name, Object value)`
`protected void` | `nodeCompleted(Object parent, Object node)`

Methods inherited from class groovy.xml.MarkupBuilder
`createNode, getDoubleQuotes, getMkp, getName, getPrinter, isOmitEmptyAttributes, isOmitNullAttributes, print, setDoubleQuotes, setOmitEmptyAttributes, setOmitNullAttributes, setParent, transformValue, yield, yieldUnescaped`

Methods inherited from class groovy.util.BuilderSupport
`doInvokeMethod, getCurrent, invokeMethod, invokeMethod, postNodeCompletion, setClosureDelegate, setCurrent`

Methods inherited from class groovy.lang.GroovyObjectSupport
`getMetaClass, getProperty, setMetaClass, setProperty`

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

Constructor Detail

### OpenRicoBuilder

    public OpenRicoBuilder(HttpServletResponse response)
                    throws IOException

Throws:
  `IOException`

Method Detail

### createNode

    protected Object createNode(Object name)

  Overrides:
    `createNode` in class `groovy.xml.MarkupBuilder`

### createNode

    protected Object createNode(Object name,
                                Map attributes,
                                Object value)

  Overrides:
    `createNode` in class `groovy.xml.MarkupBuilder`

### createNode

    protected Object createNode(Object name,
                                Object value)

  Overrides:
    `createNode` in class `groovy.xml.MarkupBuilder`

### nodeCompleted

    protected void nodeCompleted(Object parent,
                                 Object node)

  Overrides:
    `nodeCompleted` in class `groovy.xml.MarkupBuilder`

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Copyright (c) 2005-2006 The Grails project