Re: Scala DSL for Wicket
Another interesting piece of code with this Scala DSL // gender radio button val gender = radioGroup[String](gender) gender.radio(male, Model.of(Male)) gender.radio(female, Model.of(Female)) gender.setRequired(true) The HTML: div wicket:id=sexo span input wicket:id=male id=male class=field radio type=radio / label class=choice for=maleMasculino/label /span span input wicket:id=female id=female class=field radio type=radio / label class=choice for=femaleFemale/label /span /div This way, the HTMLis exactly the way the designer sent it to me. *Bruno Borges* www.brunoborges.com.br +55 21 76727099
Re: Scala DSL for Wicket
The WicketStuff Scala project is the best way to put all this. The project is more Scala-based components driven, like Fodel/SLabel and SForm, but I think Scala can offer even more advantages like the one you propose here. DSL is the way to go IMO for this Scala-Wicket integration *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Mon, Aug 1, 2011 at 2:45 AM, Gary Thomas 7za...@gmail.com wrote: I've written some Scala utilities as well, but instead of a DSL I'm using implicit conversions via traits, which I've found to be a really nice fit with Wicket. An example: import org.apache.wicket.model.IModel import org.apache.wicket.model.**LoadableDetachableModel import org.apache.wicket.model.**PropertyModel trait WicketConversions { // transparent PropertyModel conversion implicit def tuple2model[T](tuple: (AnyRef, String)): PropertyModel[T] = { new PropertyModel[T](tuple._1, tuple._2) } // transparent function/closure to LoadableDetachableModel conversion implicit def function2model[T](f: = T): IModel[T] = { new LoadableDetachableModel[T] { def load: T = f } } } Usage: class MyPanel extends Panel(id) with WicketConversions { // transparent PropertyModel conversion using article.rating): add(new RatingPanel(rating, article - rating) // so pretty // transparent LoadableDetachableModel conversion (expects IModel[Boolean]): add(new AjaxCheckBox(selected, { dao.get(id).isAdmin }) { def onUpdate(target: AjaxRequestTarget) { ... } }) } I have more code as well for Spring integration, etc. If anyone is interested, I could add mine to this or to a new GitHub project. Thanks, Gary On 7/29/11 5:22 PM, Ben Tilford wrote: For LDM class Ldm[T](provider:()= T) extends LoadableDetachable... { def load():T { provider() } } object Ldm { def apply(provider:()=T) = new Ldm[T](provider) } could be used as ... val id = 1 val model = Ldm(()={dao.get(id)}) or val id = 1 def provider = dao.get(id) val model = Ldm(provider) On Fri, Jul 29, 2011 at 6:44 AM, Martin Grigorovmgrigo...@apache.org** wrote: Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borgesbruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.**setVisibilityAllowed(true) -btnSalvar.**setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(**true) - -/* hide them */ -camposTela.**setVisibilityAllowed(false) -btnEditar.**setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borgesbruno.bor...@gmail.com wrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorovmgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorovmgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21
Re: Scala DSL for Wicket
This is an excellent piece of code. What I had was similar, but in a trait as a method: def ldm( loadF() = T ): IModel[T] = { ... } I guess breaking the DSL will make it easier to maintain. :-) And your approach is much better *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Fri, Jul 29, 2011 at 9:22 PM, Ben Tilford b...@tilford.info wrote: For LDM class Ldm[T](provider:()= T) extends LoadableDetachable... { def load():T { provider() } } object Ldm { def apply(provider:()=T) = new Ldm[T](provider) } could be used as ... val id = 1 val model = Ldm(()={dao.get(id)}) or val id = 1 def provider = dao.get(id) val model = Ldm(provider) On Fri, Jul 29, 2011 at 6:44 AM, Martin Grigorov mgrigo...@apache.org wrote: Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borges bruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.setVisibilityAllowed(true) -btnSalvar.setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(true) - -/* hide them */ -camposTela.setVisibilityAllowed(false) -btnEditar.setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borges bruno.bor...@gmail.com wrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov
Re: Scala DSL for Wicket
I've written some Scala utilities as well, but instead of a DSL I'm using implicit conversions via traits, which I've found to be a really nice fit with Wicket. An example: import org.apache.wicket.model.IModel import org.apache.wicket.model.LoadableDetachableModel import org.apache.wicket.model.PropertyModel trait WicketConversions { // transparent PropertyModel conversion implicit def tuple2model[T](tuple: (AnyRef, String)): PropertyModel[T] = { new PropertyModel[T](tuple._1, tuple._2) } // transparent function/closure to LoadableDetachableModel conversion implicit def function2model[T](f: = T): IModel[T] = { new LoadableDetachableModel[T] { def load: T = f } } } Usage: class MyPanel extends Panel(id) with WicketConversions { // transparent PropertyModel conversion using article.rating): add(new RatingPanel(rating, article - rating) // so pretty // transparent LoadableDetachableModel conversion (expects IModel[Boolean]): add(new AjaxCheckBox(selected, { dao.get(id).isAdmin }) { def onUpdate(target: AjaxRequestTarget) { ... } }) } I have more code as well for Spring integration, etc. If anyone is interested, I could add mine to this or to a new GitHub project. Thanks, Gary On 7/29/11 5:22 PM, Ben Tilford wrote: For LDM class Ldm[T](provider:()= T) extends LoadableDetachable... { def load():T { provider() } } object Ldm { def apply(provider:()=T) = new Ldm[T](provider) } could be used as ... val id = 1 val model = Ldm(()={dao.get(id)}) or val id = 1 def provider = dao.get(id) val model = Ldm(provider) On Fri, Jul 29, 2011 at 6:44 AM, Martin Grigorovmgrigo...@apache.orgwrote: Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borgesbruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.setVisibilityAllowed(true) -btnSalvar.setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(true) - -/* hide them */ -camposTela.setVisibilityAllowed(false) -btnEditar.setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borgesbruno.bor...@gmail.com wrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorovmgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorovmgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I
Re: Scala DSL for Wicket
Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borges bruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { - /* show fields */ - camposForm.setVisibilityAllowed(true) - btnSalvar.setVisibilityAllowed(true) - cancelar.setVisibilityAllowed(true) - - /* hide them */ - camposTela.setVisibilityAllowed(false) - btnEditar.setVisibilityAllowed(false) + show(camposForm, btnSalvar, cancelar) + hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borges bruno.bor...@gmail.comwrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.orgwrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend
Re: Scala DSL for Wicket
I thought about this yesterday but maybe overloading the method is better. Because this way the function must have to be passed as of expecting an id argument, even if the id argument for ldm() is optional. I just haven't added yet because of lack of usecase. :-) But thanks!! This DSL is saving me a lot of coding, even if is not actually a DSL, but a way to go. :-) *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Fri, Jul 29, 2011 at 9:44 AM, Martin Grigorov mgrigo...@apache.orgwrote: Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borges bruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.setVisibilityAllowed(true) -btnSalvar.setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(true) - -/* hide them */ -camposTela.setVisibilityAllowed(false) -btnEditar.setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borges bruno.bor...@gmail.com wrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become
Re: Scala DSL for Wicket
For LDM class Ldm[T](provider:()= T) extends LoadableDetachable... { def load():T { provider() } } object Ldm { def apply(provider:()=T) = new Ldm[T](provider) } could be used as ... val id = 1 val model = Ldm(()={dao.get(id)}) or val id = 1 def provider = dao.get(id) val model = Ldm(provider) On Fri, Jul 29, 2011 at 6:44 AM, Martin Grigorov mgrigo...@apache.orgwrote: Bruno, Yet another idea for the dsl: def ldm[R, ID](id: ID = null, f: (ID) = R) = {new LoadableDetachableModel(id) { override def load() : R = { f(id); } } } P.S. Not tested. On Thu, Jul 28, 2011 at 9:07 AM, Bruno Borges bruno.bor...@gmail.com wrote: Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.setVisibilityAllowed(true) -btnSalvar.setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(true) - -/* hide them */ -camposTela.setVisibilityAllowed(false) -btnEditar.setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borges bruno.bor...@gmail.com wrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field }
Re: Scala DSL for Wicket
Just wanted to share my experience playing a little more with Scala and Wicket A few minutes ago I got this excelent code: I know it is too simple, and it can be accomplished as well in Java with static imports. But still, for my project it's being great (and cool) to do such things. object btnEditar extends Button(btnEditar) { override def onSubmit() = { -/* show fields */ -camposForm.setVisibilityAllowed(true) -btnSalvar.setVisibilityAllowed(true) -cancelar.setVisibilityAllowed(true) - -/* hide them */ -camposTela.setVisibilityAllowed(false) -btnEditar.setVisibilityAllowed(false) +show(camposForm, btnSalvar, cancelar) +hide(camposTela, btnEditar) } } add(btnEditar) Methods show/hide are imported as import code.DSLWicket._ *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 4:53 PM, Bruno Borges bruno.bor...@gmail.comwrote: Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.orgwrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail:
Re: Scala DSL for Wicket
Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
def button(id: String, submit: () ⇒ Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.orgwrote: def button(id: String, submit: () ⇒ Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Read the manual again ;-) On Wed, Jul 27, 2011 at 8:14 PM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.orgwrote: def button(id: String, submit: () ⇒ Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.orgwrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.comwrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.comwrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.comwrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.comwrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.comwrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.comwrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
I started on something sililar about a month ago. Havnt had time to work on it for a few weeks but maybe it would be usable by someone. https://github.com/btilford/wicketstuff-core/branches/scala-wicket-builder There's also a groovy builder if you browse my other repos. sent from mobile On Jul 27, 2011 12:56 PM, Martin Grigorov mgrigo...@apache.org wrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Scala DSL for Wicket
Thanks Martin, There was only a small little problem in your code. The correct syntax is: def label[T](id: String, model: IModel[T] = null): Label = { val label = new Label(id, model); add(label); label } The suggestions were updated on Gist. *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 3:55 PM, Martin Grigorov mgrigo...@apache.orgwrote: Idea for simplification: use named parameters. For example def label[T](id: String, model: IModel[T]): Label = { val label = new Label(id, model); add(label); label } would become def label[T](id: String, model = _ : IModel[T]): Label = { val label = new Label(id, model); add(label); label } this way you'll have just one declaration of label function which will handle the current three additionally you may add a pimp: implicit def ser2model[S : Serializable](ser: S): IModel[S] = Model.of(ser) now even when you pass String as second param to label() it will be converted to IModel On Wed, Jul 27, 2011 at 9:11 PM, Martin Grigorov mgrigo...@apache.org wrote: Take a look at scala.swing.* sources. On Wed, Jul 27, 2011 at 8:34 PM, Bruno Borges bruno.bor...@gmail.com wrote: Can some Scala expert help me to make this DSL available as PML (pimp my library)? I've tried to code it that way but things didn't quite worked out the way they should. The reason is that for every Wicket object I create, I must extend the trait DSLWicket *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:30 PM, Bruno Borges bruno.bor...@gmail.com wrote: Not really. The method onSubmit() of button is void, as well onClick(), so there's no need for the function be passed as () = Unit or anything else. I made a few changes to it and updated on Gist. I've also uploaded a page that uses this DSL at https://gist.github.com/1109919 Take a look *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 2:22 PM, Scott Swank scott.sw...@gmail.com wrote: I think you do want Unit, which as I understand it is closest equivalent to void in Scala. http://www.scala-lang.org/api/current/scala/Unit.html Scott On Wed, Jul 27, 2011 at 10:14 AM, Bruno Borges bruno.bor...@gmail.com wrote: No, the function must return void, not another function (unit). But there's also the option of () = Nothing. Which one should I use for this case? *Bruno Borges* www.brunoborges.com.br +55 21 76727099 On Wed, Jul 27, 2011 at 12:54 PM, Martin Grigorov mgrigo...@apache.org wrote: def button(id: String, submit: () = Void): Button = { it should be () = Unit, no ? On Wed, Jul 27, 2011 at 6:51 PM, Martin Grigorov mgrigo...@apache.org wrote: Adding some usage examples at the bottom will help us evaluate it. Why not add type to def textField(id: String): TextField[_] = { val field = new TextField(id); add(field); field } to become def textField[T](id: String): TextField[T] = { val field = new TextField[T](id); add(field); field } usage: textField[Int](someId) with using implicit Manifest for T you can also can automatically set the type: field.setType(m.erasure) On Wed, Jul 27, 2011 at 6:26 PM, Bruno Borges bruno.bor...@gmail.com wrote: I've been playing with Wicket and Scala and I thought this could be added to the wicket-scala project at WicketStuff. What do you guys think? https://gist.github.com/1109603 *Bruno Borges* www.brunoborges.com.br +55 21 76727099 -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org