Re: Render a single Enum value
Hello!
Have you tried ? This
component is used by BeanDisplay and Grid for outputting property values,
using the contributed display blocks to the BeanBlockSource, and uses
TapestryInternalUtils.getLabelForEnum(Messages, Enum).
On Wed, Aug 25, 2021 at 11:31 PM Paul Stanton wrote:
> Using ${object.enumValue} renders the enum in raw form ie ENUM1
>
> How do I leverage "TapestryInternalUtils.getLabelForEnum" without having
> to use a BeanDisplay or Grid etc?
>
> Or is there super easy way to just render the Enum value formatted
> without rendering any wrapping html etc?
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
>
>
--
Thiago
Re: Render a single Enum value
You could build a custom component, e.g.:
public class OutputEnum
{
@Inject
private Messages messages;
@Parameter(required = true)
private Enum value;
@BeginRender
void begin(MarkupWriter writer)
{
if (value == null)
{
return;
}
Element element = writer.element("span");
element.text(getLabelForEnum(messages, value));
writer.end(); // span
}
}
On Thu, Aug 26, 2021 at 3:31 AM Paul Stanton wrote:
> Using ${object.enumValue} renders the enum in raw form ie ENUM1
>
> How do I leverage "TapestryInternalUtils.getLabelForEnum" without having
> to use a BeanDisplay or Grid etc?
>
> Or is there super easy way to just render the Enum value formatted
> without rendering any wrapping html etc?
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
>
>
--
Dmitry Gusev
AnjLab Team
http://anjlab.com
Re: Render a single Enum value
If you want a reusable solution, you could contribute your own custom
binding prefix, so you can use the following in your .tml files:
${enum:object.enumValue}
And then in your .properties message files:
EnumName.ENUM=Enum message
1. Extend the AbstractBinding class: (maybe it can also be done by using
the TapestryInternalUtils method you mentioned instead of our
implementation here)
public class EnumBinding extends AbstractBinding {
private final Messages messages;
private final Binding valueBinding;
private final TypeCoercer coercer;
public EnumBinding(Messages messages, Binding valueBinding,
TypeCoercer coercer) {
this.messages = messages;
this.valueBinding = valueBinding;
this.coercer = coercer;
}
@Override
public Object get() {
Object rawValue = valueBinding.get();
if (rawValue instanceof Enum) {
Enum value = (Enum)rawValue;
String simpleName = value.getDeclaringClass().getSimpleName();
return messages.get(simpleName + "." +
coercer.coerce(value, String.class));
} else {
String simpleName = rawValue.getClass().getSimpleName();
return messages.get(simpleName + "." +
coercer.coerce(rawValue, String.class));
}
}
@Override
public boolean isInvariant() {
return valueBinding.isInvariant();
}
@Override
public Class getBindingType() {
return String.class;
}
}
2. Create a BindingFactory implementation:
public class EnumBindingFactory implements BindingFactory {
private final BindingSource bindingSource;
private final TypeCoercer coercer;
public EnumBindingFactory(BindingSource bindingSource, TypeCoercer
typeCoercer) {
this.bindingSource = bindingSource;
this.coercer = typeCoercer;
}
@Override
public Binding newBinding(
String description,
ComponentResources container,
ComponentResources component,
String expression,
Location location) {
Binding valueBinding = bindingSource.newBinding(
description, container, component,
BindingConstants.PROP, expression, location);
return new EnumBinding(container.getMessages(), valueBinding,
coercer);
}
}
3. Bind the factory service and contribute the new binding in your
AppModule class like following:
public static void bind(ServiceBinder binder) {
binder.bind(BindingFactory.class,
EnumBindingFactory.class).withId("EnumBindingFactory");
}
public static void contributeBindingSource(
MappedConfiguration configuration,
@InjectService("EnumBindingFactory") BindingFactory
enumBindingFactory) {
configuration.add("enum", enumBindingFactory);
}
Op 26/08/2021 om 04:30 schreef Paul Stanton:
Using ${object.enumValue} renders the enum in raw form ie ENUM1
How do I leverage "TapestryInternalUtils.getLabelForEnum" without
having to use a BeanDisplay or Grid etc?
Or is there super easy way to just render the Enum value formatted
without rendering any wrapping html etc?
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Render a single Enum value
Or if you want a more global easy to use solution, you could contribute
your own custom binding prefix, so you can use the following in your
.tml files:
${enum:object.enumValue}
And then in your .properties message files:
EnumName.ENUM=Enum message
1. Extend the AbstractBinding class: (maybe it can also be done by using
the TapestryInternalUtils method you mentioned instead of our
implementation here)
public class EnumBinding extends AbstractBinding {
private final Messages messages;
private final Binding valueBinding;
private final TypeCoercer coercer;
public EnumBinding(Messages messages, Binding valueBinding,
TypeCoercer coercer) {
this.messages = messages;
this.valueBinding = valueBinding;
this.coercer = coercer;
}
@Override
public Object get() {
Object rawValue = valueBinding.get();
if (rawValue instanceof Enum) {
Enum value = (Enum)rawValue;
String simpleName = value.getDeclaringClass().getSimpleName();
return messages.get(simpleName + "." +
coercer.coerce(value, String.class));
} else {
String simpleName = rawValue.getClass().getSimpleName();
return messages.get(simpleName + "." +
coercer.coerce(rawValue, String.class));
}
}
@Override
public boolean isInvariant() {
return valueBinding.isInvariant();
}
@Override
public Class getBindingType() {
return String.class;
}
}
2. Create a BindingFactory implementation:
public class EnumBindingFactory implements BindingFactory {
private final BindingSource bindingSource;
private final TypeCoercer coercer;
public EnumBindingFactory(BindingSource bindingSource, TypeCoercer
typeCoercer) {
this.bindingSource = bindingSource;
this.coercer = typeCoercer;
}
@Override
public Binding newBinding(
String description,
ComponentResources container,
ComponentResources component,
String expression,
Location location) {
Binding valueBinding = bindingSource.newBinding(
description, container, component,
BindingConstants.PROP, expression, location);
return new EnumBinding(container.getMessages(), valueBinding,
coercer);
}
}
3. Bind the factory service and contribute the new binding in your
AppModule class like following:
public static void bind(ServiceBinder binder) {
binder.bind(BindingFactory.class,
EnumBindingFactory.class).withId("EnumBindingFactory");
}
public static void contributeBindingSource(
MappedConfiguration configuration,
@InjectService("EnumBindingFactory") BindingFactory
enumBindingFactory) {
configuration.add("enum", enumBindingFactory);
}
Op 26/08/2021 om 07:32 schreef Volker Lamp:
Using ${object.enumValue} renders the enum in raw form ie ENUM1
How do I leverage "TapestryInternalUtils.getLabelForEnum" without having to use
a BeanDisplay or Grid etc?
Or is there super easy way to just render the Enum value formatted without
rendering any wrapping html etc?
You could inject the Locale as well as the Messages services into the page and
use the latter in a property method to return a localized string.
Also, check out the Adding new property editors section in the BeanEditForm
guide (https://tapestry.apache.org/beaneditform-guide.html) It may look clumsy
initially but it‘s quite beautiful when a bean needs to appear on different
pages across your app (which is likely to be the case).
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Render a single Enum value
> Using ${object.enumValue} renders the enum in raw form ie ENUM1
>
> How do I leverage "TapestryInternalUtils.getLabelForEnum" without having to
> use a BeanDisplay or Grid etc?
>
> Or is there super easy way to just render the Enum value formatted without
> rendering any wrapping html etc?
You could inject the Locale as well as the Messages services into the page and
use the latter in a property method to return a localized string.
Also, check out the Adding new property editors section in the BeanEditForm
guide (https://tapestry.apache.org/beaneditform-guide.html) It may look clumsy
initially but it‘s quite beautiful when a bean needs to appear on different
pages across your app (which is likely to be the case).
Render a single Enum value
Using ${object.enumValue} renders the enum in raw form ie ENUM1
How do I leverage "TapestryInternalUtils.getLabelForEnum" without having
to use a BeanDisplay or Grid etc?
Or is there super easy way to just render the Enum value formatted
without rendering any wrapping html etc?
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
