com.google.gwt.resources.rebind.context

Class AbstractClientBundleGenerator

java.lang.Object

com.google.gwt.core.ext.Generator

com.google.gwt.core.ext.IncrementalGenerator

com.google.gwt.resources.rebind.context.AbstractClientBundleGenerator

Direct Known Subclasses:

InlineClientBundleGenerator, MhtmlClientBundleGenerator, StaticClientBundleGenerator

public abstract class AbstractClientBundleGenerator
extends com.google.gwt.core.ext.IncrementalGenerator

The base class for creating new ClientBundle implementations.

The general structure of the generated class is as follows:

 private void resourceInitializer() {
   resource = new Resource();
 }
 private static class cellTreeClosedItemInitializer {
   // Using a static initializer so the compiler can optimize clinit calls.
   // Refers back to an instance method. See comment below.
   static {
     _instance0.resourceInitializer();
   }
   static ResourceType get() {
     return resource;
   }
 }
 public ResourceType resource() {
   return cellTreeClosedItemInitializer.get();
 }
 // Other ResourceGenerator-defined fields
 private static ResourceType resource;
 private static HashMap<String, ResourcePrototype> resourceMap;
 public ResourcePrototype[] getResources() {
   return new ResourcePrototype[] { resource() };
 }
 public ResourcePrototype getResource(String name) {
   if (GWT.isScript()) {
     return getResourceNative(name);
   } else {
     if (resourceMap == null) {
       resourceMap = new HashMap();
       resourceMap.put("resource", resource());
     }
     return resourceMap.get(name);
   }
 }
 private native ResourcePrototype getResourceNative(String name) /-{
   switch (name) {
     case 'resource': return this.@...::resource()();
   }
   return null;
 }-/
 

The instantiation of the individual ResourcePrototypes is done in the content of an instance of the ClientBundle type so that resources can refer to one another by simply emitting a call to resource().

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AbstractClientBundleGenerator.FieldsImpl An implementation of ClientBundleFields.

Constructor Summary

Constructors

Constructor and Description
AbstractClientBundleGenerator()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract AbstractResourceContext	createResourceContext(com.google.gwt.core.ext.TreeLogger logger, com.google.gwt.core.ext.GeneratorContext context, com.google.gwt.core.ext.typeinfo.JClassType resourceBundleType) Create the ResourceContext object that will be used by ResourceGenerator subclasses.
protected void	doAddFieldsAndRequirements(com.google.gwt.core.ext.TreeLogger logger, com.google.gwt.core.ext.GeneratorContext context, AbstractClientBundleGenerator.FieldsImpl fields, ClientBundleRequirements requirements) Provides a hook for subtypes to add additional fields or requirements to the bundle.
protected void	doCreateBundleForPermutation(com.google.gwt.core.ext.TreeLogger logger, com.google.gwt.core.ext.GeneratorContext generatorContext, AbstractClientBundleGenerator.FieldsImpl fields, String generatedSimpleSourceName) This method is called after the ClientBundleRequirements have been evaluated and a new ClientBundle implementation is being created.
protected void	doFinish(com.google.gwt.core.ext.TreeLogger logger) Provides a hook for finalizing generated resources.
com.google.gwt.core.ext.RebindResult	generateIncrementally(com.google.gwt.core.ext.TreeLogger logger, com.google.gwt.core.ext.GeneratorContext generatorContext, String typeName)
long	getVersionId()

Methods inherited from class com.google.gwt.core.ext.IncrementalGenerator

generate, generateNonIncrementally

Methods inherited from class com.google.gwt.core.ext.Generator

escape, escapeClassName

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

AbstractClientBundleGenerator

public AbstractClientBundleGenerator()

Method Detail

generateIncrementally

public com.google.gwt.core.ext.RebindResult generateIncrementally(com.google.gwt.core.ext.TreeLogger logger,
                                                         com.google.gwt.core.ext.GeneratorContext generatorContext,
                                                         String typeName)
                                                           throws com.google.gwt.core.ext.UnableToCompleteException

Specified by:

generateIncrementally in class com.google.gwt.core.ext.IncrementalGenerator

Throws:

com.google.gwt.core.ext.UnableToCompleteException

getVersionId

public long getVersionId()

Specified by:

getVersionId in class com.google.gwt.core.ext.IncrementalGenerator

createResourceContext

protected abstract AbstractResourceContext createResourceContext(com.google.gwt.core.ext.TreeLogger logger,
                                            com.google.gwt.core.ext.GeneratorContext context,
                                            com.google.gwt.core.ext.typeinfo.JClassType resourceBundleType)
                                                          throws com.google.gwt.core.ext.UnableToCompleteException

Create the ResourceContext object that will be used by ResourceGenerator subclasses. This is the primary way to implement custom logic in the resource generation pass.

Throws:

com.google.gwt.core.ext.UnableToCompleteException

doAddFieldsAndRequirements

protected void doAddFieldsAndRequirements(com.google.gwt.core.ext.TreeLogger logger,
                              com.google.gwt.core.ext.GeneratorContext context,
                              AbstractClientBundleGenerator.FieldsImpl fields,
                              ClientBundleRequirements requirements)
                                   throws com.google.gwt.core.ext.UnableToCompleteException

Provides a hook for subtypes to add additional fields or requirements to the bundle.

Parameters:

logger - a TreeLogger

context - the GeneratorContext

fields - ClentBundle fields

requirements - ClientBundleRequirements

Throws:

com.google.gwt.core.ext.UnableToCompleteException - if an error occurs.

doCreateBundleForPermutation

protected void doCreateBundleForPermutation(com.google.gwt.core.ext.TreeLogger logger,
                                com.google.gwt.core.ext.GeneratorContext generatorContext,
                                AbstractClientBundleGenerator.FieldsImpl fields,
                                String generatedSimpleSourceName)
                                     throws com.google.gwt.core.ext.UnableToCompleteException

This method is called after the ClientBundleRequirements have been evaluated and a new ClientBundle implementation is being created.

Parameters:

logger - a TreeLogger

generatorContext - the GeneratoContext

fields - ClientBundle fields

generatedSimpleSourceName - a String

Throws:

com.google.gwt.core.ext.UnableToCompleteException - if an error occurs.

doFinish

protected void doFinish(com.google.gwt.core.ext.TreeLogger logger)
                 throws com.google.gwt.core.ext.UnableToCompleteException

Provides a hook for finalizing generated resources.

Parameters:

logger - a TreeLogger

Throws:

com.google.gwt.core.ext.UnableToCompleteException - if an error occurs.