[jboss-user] [JBoss Seam] - EntityQuery.nextExists not working correctly?
Hi,
I'm new in JBoss Seam and reading Yuan's Seam Book.
I want to display multipage query results with EntityQuery(Seam CRUD App Framework).
I want to display 3 data records(EntityQuery#getMaxResults) per page, and now there are 6
data records in database table.
Then there are "Next Page" and "Last Page" links in first page.
That's OK.
But there are also in second page! (i.e. #{fans.nextExists) returns true regardless of no
next data records)
When I click "Next Page" or "Last Page" link in second page, third
page is displayed without data records( and next/last paging links).
Why "Next/Last Page" links are displayed in second page regardless of no next
data records?
| <s:link view="/fans.xhtml"
| rendered="#{fans.previousExists}"
| value="#{messages.left}#{messages.left} First Page"
| id="firstPage">
| <f:param name="firstResult" value="0"/>
| </s:link>
|
| <s:link view="/fans.xhtml"
| rendered="#{fans.previousExists}"
| value="#{messages.left} Previous Page"
| id="previousPage">
| <f:param name="firstResult"
| value="#{fans.previousFirstResult}"/>
| </s:link>
|
| <s:link view="/fans.xhtml"
| rendered="#{fans.nextExists}"
| value="Next Page #{messages.right}"
| id="nextPage">
| <f:param name="firstResult"
| value="#{fans.nextFirstResult}"/>
| </s:link>
|
| <s:link view="/fans.xhtml"
| rendered="#{fans.nextExists}"
| value="Last Page #{messages.right}#{messages.right}"
| id="lastPage">
| <f:param name="firstResult"
| value="#{fans.lastFirstResult}"/>
| </s:link>
|
| @Name("fans")
| public class PersonList extends EntityQuery {
| ......
|
| @Override
| public String getEjbql() {
| return "select p from Person p";
| }
|
|
| @Override
| public Integer getMaxResults() {
| return 3;
| }
|
| ......
| }
|
[environment]
JBoss AS 4.0.5.GA( & HSQLDB)
JBoss Seam 1.2.1.GA
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