Raible's Wiki: TapestryPages

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In this step, you'll generate a an HTML Template to display information from the Person object. It will contain Tapestry's syntax for rendering form elements - which is just HTML with "jwcid" attributes. The AppGen tool that's used to do this is based off a StrutsGen tool - which was originally written by [Erik Hatcher|http://www.blogscene.org/erik/]. It's basically just a couple of classes and a bunch of XDoclet templates. All these files are located in extras/appgen.

In this step, you'll generate a an HTML Template to display information from the Person object. It will contain Tapestry's syntax for rendering form elements - which is just HTML with "jwcid" attributes. The [AppGen] tool that's used to do this is based off a StrutsGen tool - which was originally written by [Erik Hatcher|http://www.blogscene.org/erik/]. It's basically just a couple of classes and a bunch of XDoclet templates. All these files are located in extras/appgen.

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* Execute __ant -Dobject.name=Person -Dappgen.type=pojo__ to generate a bunch of files in __extras/appgen/build/gen__. In fact, it'll generate all the files you need to complete this tutorial. However, let's just grab the ones you need.

* Execute __ant -Dobject.name=Person -Dappgen.type=pojo -Dapp.module=__ to generate a bunch of files in __extras/appgen/build/gen__. In fact, it'll generate all the files you need to complete this tutorial. However, let's just grab the ones you need.

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* Copy the contents of Person.properties into web/WEB-INF/classes/ApplicationResources_en.properties. These are all the keys you will need for titles/headings and form properties. Here is an example of what you should add to ApplicationResources_en.properties:

* Copy the contents of Person.properties into web/WEB-INF/classes/ApplicationResources.properties. These are all the keys you will need for titles/headings and form properties. Here is an example of what you should add to ApplicationResources.properties:

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personForm.id=Id

personForm.firstName=First Name

personForm.lastName=Last Name

person.id=Id

person.firstName=First Name

person.lastName=Last Name

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* Copy personForm.html and personForm.page to web/pages/personForm.jsp and web/pages/personForm.page. Copy personList.html and personList.page to web/pages/personList.jsp and web/pages/personList.page. ''Notice that each of the new filename's first character is lowercase.''

* Copy personForm.html and personForm.page to web/pages/personForm.html and web/pages/personForm.page. Copy personList.html and personList.page to web/pages/personList.html and web/pages/personList.page.

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import org.appfuse.service.Manager;

import org.appfuse.service.PersonManager;

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private Manager manager;

private PersonManager personManager;

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manager = (Manager) ctx.getBean("manager");

page.setManager(manager);

personManager = (PersonManager) ctx.getBean("personManager");

page.setPersonManager(personManager);

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assertNotNull(manager);

Person person = (Person) manager.getObject(Person.class, new Long(1));

assertNotNull(personManager);

Person person = personManager.getPerson("1");

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import org.apache.tapestry.engine.ILink;

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import org.apache.tapestry.event.PageRenderListener;

import org.apache.tapestry.event.PageBeginRenderListener;

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public abstract class PersonForm extends BasePage implements PageRenderListener {

public abstract class PersonForm extends BasePage implements PageBeginRenderListener {

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public abstract void setPersonManager(PersonManager mgr);

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public void cancel(IRequestCycle cycle) {

if (log.isDebugEnabled()) {

log.debug("Entering 'cancel' method");

}

cycle.activate("mainMenu");

public ILink cancel(IRequestCycle cycle) {

log.debug("Entering 'cancel' method");

return getEngineService().getLink(false, "persons");

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public void delete(IRequestCycle cycle) {

if (log.isDebugEnabled()) {

log.debug("entered 'delete' method");

}

public ILink delete(IRequestCycle cycle) {

log.debug("entered 'delete' method");

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getPersonManager().removePerson(getPerson().getId().toString());

getPersonManager().removePerson(getPerson().getPersonId().toString());

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MainMenu nextPage = (MainMenu) cycle.getPage("mainMenu");

nextPage.setMessage(getMessage("person.deleted"));

cycle.activate(nextPage);

PersonList nextPage = (PersonList) cycle.getPage("persons");

nextPage.setMessage(getText("person.deleted"));

return getEngineService().getLink(false, nextPage.getPageName());

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public void edit(IRequestCycle cycle) {

Object[] parameters = cycle.getServiceParameters();

Long id = (Long) parameters[0];

if (log.isDebugEnabled()) {

log.debug("getting person with id: " + id);

public ILink save(IRequestCycle cycle) {

if (getDelegate().getHasErrors()) {

return null;

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setPerson(getPersonManager().getPerson(id.toString()));

cycle.activate(this);

}

public void save(IRequestCycle cycle) {

if (getValidationDelegate().getHasErrors()) {

return;

}

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boolean isNew = (getPerson().getId() == null);

boolean isNew = (getPerson().getPersonId() == null);

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MainMenu nextPage = (MainMenu) cycle.getPage("mainMenu");

nextPage.setMessage(getMessage(key));

cycle.activate(nextPage);

PersonList nextPage = (PersonList) cycle.getPage("persons");

nextPage.setMessage(getText(key));

return getEngineService().getLink(false, nextPage.getPageName());

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PersonForm nextPage = (PersonForm) cycle.getPage("personForm");

nextPage.setMessage(getMessage(key));

cycle.activate("personForm"); // return to current page

setMessage(getText(key));

return null; // return to current page

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You'll notice a number of keys in this file - "person.deleted", "person.added" and "person.updated". These are all keys that need to be in your i18n bundle (ApplicationResources_en.properties). You should've added these at the beginning of this tutorial. If you want to customize these messages, to add the a person's name or something, simply add a {0} placeholder in the key's message and then use setMessage(format(key, stringtoreplace)) method.

You'll notice a number of keys in this file - "person.deleted", "person.added" and "person.updated". These are all keys that need to be in your i18n bundle (ApplicationResources.properties). You should've added these at the beginning of this tutorial. If you want to customize these messages, to add the a person's name or something, simply add a {0} placeholder in the key's message and then use setMessage(format(key, stringtoreplace)) method.

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