@InjectPage is used to inject another page from the application into
the page containing the annotated field.
On Wed, May 19, 2010 at 1:19 AM, Sven Homburg <hombu...@googlemail.com> wrote:
> In your case, you dont need the InjectPage.
>
> try this:
>
> public String getPageLinkContext() {
> return "another";
> }
>
> with regards
> Sven Homburg
> Founder of the Chenille Kit Project
> http://chenillekit.codehaus.org
>
>
>
>
> 2010/5/19 Albert Tumanov <altum...@gmail.com>
>
>> Dear Tapestry users,
>>
>> I do not understand what @InjectPage actually does, can somebody please
>> help me.
>> I've expected that @InjectPage should return a fresh page from the
>> pool, so that I can use it e.g. for creating page links with needed
>> parameters.
>> But if I try to inject a page in the same page class, it actually
>> injects "this" instead of a fresh page instance.
>>
>> Example:
>> Say we have a Product page showing some product details.
>> It also shows links to related products (link to the same page but
>> with different parameter).
>>
>> public class Product {
>>
>> private String name;
>>
>> void onActivate(String param) {
>> this.name = param;
>> }
>>
>> Object[] onPassivate() {
>> return new Object[] { name };
>> }
>>
>> �...@injectpage
>> private Product productPage;
>>
>> // in real life this method could be in a separate component
>> public Object[] getPageLinkContext() {
>> System.out.println("this=" + this);
>> System.out.println("productPage=" + productPage);
>> productPage.setName("another");
>> return productPage.onPassivate();
>> }
>>
>> public void setName(String name) {
>> this.name = name;
>> }
>>
>> public String getName() {
>> return name;
>> }
>> }
>>
>> Product.tml:
>> <html t:type="layout" title="MyPage"
>> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
>> xmlns:p="tapestry:parameter">
>> This product = ${name}
>> <t:pagelink page="Product" context="pageLinkContext">related
>> product</t:pagelink>
>> This product = ${name}
>> </html>
>>
>> What I expect is that value of "name" should not change after PageLink
>> component have called the getPageLinkContext() method.
>> But actual generated HTML is (for
>> http://localhost:8080/myapp/product/initial):
>>
>> This product = initial
>> <a href="/myapp/product/another">related product</a>
>> This product = another
>>
>> System output shows that the "productPage" is the same instance as "this":
>>
>> this=com.example.pages.prod...@90e1b2
>> productpage=com.example.pages.prod...@90e1b2
>>
>> Is it the correct @InjectPage behaviour ?
>> Am I doing something lame ?
>>
>> Thanks in advance,
>> Albert
>>
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>>
>
--
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Creator of Apache Tapestry
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