er.extensions.components
Class ERXSLTWrapper

java.lang.Object
  com.webobjects.appserver.WOElement
      com.webobjects.appserver.WOComponent
          er.extensions.components.ERXComponent
              er.extensions.components.ERXNonSynchronizingComponent
                  er.extensions.components.ERXSLTWrapper

All Implemented Interfaces:

com.webobjects.appserver.WOActionResults, com.webobjects.foundation.NSKeyValueCoding, com.webobjects.foundation.NSKeyValueCoding.ErrorHandling, com.webobjects.foundation.NSKeyValueCodingAdditions, com.webobjects.foundation.NSValidation, java.io.Serializable, java.lang.Cloneable

public class ERXSLTWrapper
extends ERXNonSynchronizingComponent

Wrapper that translates its content via XSLT. The content must be valid XML for this to work. This is pretty usefull in conjunction with DynaReporter when you want to use one of the zillion PDF libs. You can generate the content via DynaReporter and then transform the content to a form that the PDF lib understands. Most likely this will be much easier than trying to re-generate the report with XML.
Other uses include a simple transformation of the generated front end code to privide for "skinning". As there is only so much you can do with CSS, you might need to structurally change the generated HTML prior to handing it to the client.
Note that XSLT engines vary greatly in speed. The default case of using Xalan which is included by WO is probably not the best choice for a site with a little bit of traffic. Therefore there is an option where you can set the transformer factory name to use, you also need to include the corresponding jar into the classpath.

See Also:

Serialized Form

Author:

ak on 07.04.05

Bindings

enabled	flag that decides if the transformation is applied. If not set, then only the content will be shown.
stylesheet	name of the XLST stylesheet (mandatory)
transformerFactory	name of the class for the XSLT transformer factory (optional, defaults to Xalan)
framework	name of the XLST stylesheet's framework (optional)
data	will be set to the transformed data (optional)
stream	will be set to the transformed data (optional)
nocache	flag that if set creates a new transformer instead of using the one in the cache. Useful when deleloping the stylesheet.

Nested Class Summary

static class

ERXSLTWrapper.TemplatePool

Nested classes/interfaces inherited from class com.webobjects.appserver.WOComponent

com.webobjects.appserver.WOComponent._EventLoggingEnabler, com.webobjects.appserver.WOComponent.Event

Nested classes/interfaces inherited from interface com.webobjects.foundation.NSKeyValueCodingAdditions

com.webobjects.foundation.NSKeyValueCodingAdditions.DefaultImplementation, com.webobjects.foundation.NSKeyValueCodingAdditions.Utility

Nested classes/interfaces inherited from interface com.webobjects.foundation.NSKeyValueCoding

com.webobjects.foundation.NSKeyValueCoding._BooleanFieldBinding, com.webobjects.foundation.NSKeyValueCoding._BooleanMethodBinding, com.webobjects.foundation.NSKeyValueCoding._FieldBinding, com.webobjects.foundation.NSKeyValueCoding._ForwardingBinding, com.webobjects.foundation.NSKeyValueCoding._KeyBinding, com.webobjects.foundation.NSKeyValueCoding._KeyBindingCreation, com.webobjects.foundation.NSKeyValueCoding._MethodBinding, com.webobjects.foundation.NSKeyValueCoding._NumberFieldBinding, com.webobjects.foundation.NSKeyValueCoding._NumberMethodBinding, com.webobjects.foundation.NSKeyValueCoding._ReflectionKeyBindingCreation, com.webobjects.foundation.NSKeyValueCoding.ErrorHandling, com.webobjects.foundation.NSKeyValueCoding.Null, com.webobjects.foundation.NSKeyValueCoding.UnknownKeyException, com.webobjects.foundation.NSKeyValueCoding.ValueAccessor

Nested classes/interfaces inherited from interface com.webobjects.foundation.NSValidation

com.webobjects.foundation.NSValidation._MethodBinding, com.webobjects.foundation.NSValidation._ValidationBinding, com.webobjects.foundation.NSValidation.DefaultImplementation, com.webobjects.foundation.NSValidation.Utility, com.webobjects.foundation.NSValidation.ValidationException

Field Summary

Fields inherited from class er.extensions.components.ERXComponent

_dynamicBindings

Fields inherited from class com.webobjects.appserver.WOComponent

_Extension, _IsEventLoggingEnabled, _keyAssociations

Fields inherited from interface com.webobjects.foundation.NSKeyValueCoding.ErrorHandling

_CLASS

Fields inherited from interface com.webobjects.foundation.NSKeyValueCodingAdditions

_CLASS, _KeyPathSeparatorChar, KeyPathSeparator

Fields inherited from interface com.webobjects.foundation.NSKeyValueCoding

NullValue

Fields inherited from interface com.webobjects.foundation.NSValidation

_CLASS

Constructor Summary

ERXSLTWrapper(com.webobjects.appserver.WOContext context)
Public constructor

Method Summary

void	appendToResponse(com.webobjects.appserver.WOResponse response, com.webobjects.appserver.WOContext context) Overridden to get use apply the XLST transformation on the content.
static javax.xml.transform.Transformer	getTransformer(java.lang.String framework, java.lang.String filename)
static com.webobjects.foundation.NSData	transform(javax.xml.transform.Transformer transformer, com.webobjects.foundation.NSData data)
static java.lang.String	transform(javax.xml.transform.Transformer transformer, java.lang.String xml)

Methods inherited from class er.extensions.components.ERXNonSynchronizingComponent

invokeAction, isStateless, resetCachedBindingsInStatefulComponent, synchronizesVariablesWithBindings, takeValuesFromRequest

Methods inherited from class er.extensions.components.ERXComponent

_awakeInContext, _checkAccess, _frameworkName, _includeCSSResources, _includeJavascriptResources, additionalCSSFiles, additionalJavascriptFiles, booleanValueForBinding, booleanValueForBinding, booleanValueForBinding, checkAccess, clickToOpenEnabled, componentName, defaultCSSPath, defaultJavascriptPath, dynamicBindings, floatValueForBinding, intValueForBinding, isPageAccessAllowed, localizer, objectValueForBinding, objectValueForBinding, pageWithName, postAppendToResponse, preAppendToResponse, primaryCSSFile, primaryJavascriptFile, reset, stringValueForBinding, stringValueForBinding, useDefaultComponentCSS, useDefaultComponentJavascript

Methods inherited from class com.webobjects.appserver.WOComponent

_associationWithName, _childTemplate, _componentDefinition, _componentUnroll, _isPage, _setContext, _setIsPage, _setParent, _setSubcomponent, _sleepInContext, _subcomponentForElementWithID, _templateNameForClass, _unroll, application, awake, baseURL, bindingKeys, canAccessFieldsDirectly, canGetValueForBinding, canSetValueForBinding, clone, context, debugString, descriptionForResponse, ensureAwakeInContext, frameworkName, generateResponse, handleQueryWithUnboundKey, handleTakeValueForUnboundKey, hasBinding, hasSession, isCachingEnabled, isEventLoggingEnabled, logString, name, pageWithName, parent, path, pathURL, performParentAction, pullValuesFromParent, pushValuesToParent, session, set_componentUnroll, set_unroll, setCachingEnabled, setValueForBinding, sleep, takeValueForKey, takeValueForKeyPath, template, templateWithHTMLString, templateWithName, toString, unableToSetNullForKey, validateTakeValueForKeyPath, validateValueForKey, validationFailedWithException, valueForBinding, valueForKey, valueForKeyPath

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ERXSLTWrapper

public ERXSLTWrapper(com.webobjects.appserver.WOContext context)

Public constructor

Parameters:

context - the context

Method Detail

appendToResponse

public void appendToResponse(com.webobjects.appserver.WOResponse response,
                             com.webobjects.appserver.WOContext context)

Overridden to get use apply the XLST transformation on the content.

Overrides:

appendToResponse in class ERXNonSynchronizingComponent

Parameters:

response - to which we are appending

context - context of the response

Throws:

javax.xml.transform.TransformerException

getTransformer

public static javax.xml.transform.Transformer getTransformer(java.lang.String framework,
                                                             java.lang.String filename)

transform

public static java.lang.String transform(javax.xml.transform.Transformer transformer,
                                         java.lang.String xml)
                                  throws javax.xml.transform.TransformerException

Throws:

javax.xml.transform.TransformerException

transform

public static com.webobjects.foundation.NSData transform(javax.xml.transform.Transformer transformer,
                                                         com.webobjects.foundation.NSData data)
                                                  throws javax.xml.transform.TransformerException

Throws:

javax.xml.transform.TransformerException