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Description
Creates an <a> hyperlink in the HTML response. If the link is
triggered, then the ActionLink retrieves its listener, and invokes
actionTriggered() on it.
See the Developers Guide
ActionLink and DirectLink listeners for
a more complete description.
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See Also
DirectLink,
ExternalLink,
GenericLink,
PageLink,
ServiceLink
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Parameters
| Name |
Type |
Direction |
Required |
Default |
Description |
| listener |
IActionListener
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in |
yes |
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Specifies an object that is notified when the link is clicked,
which is typically a listener method of its container
(for example, listeners.method). |
| disabled |
boolean |
in |
no |
false |
Controls whether the link is produced. If disabled, the portion of the
template the link surrounds is still rendered, but not the link itself.
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| stateful |
boolean |
in |
no |
true |
If true (the default), then the component requires an active (i.e., non-new)
HttpSession when triggered. Failing that, it throws a
StaleLinkException.
If false, then no check is necessary. The
latter works well with links that encode all necessary state inside the URL
itself.
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| anchor |
String |
in |
no |
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The name of an anchor or element to link to. The final URL will have '#'
and the anchor appended to it.
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| renderer |
ILinkRenderer |
in |
no |
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The object which will actually render the link.
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Body: rendered
Informal parameters: allowed
Reserved parameters: "href"
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Examples
In this example the ActionLink component enables users to select a Customer
from the Customer List table.
<table cellspacing="6">
<tr>
<td>ID</td>
<td> </td>
<td>Name</td>
<td> </td>
<td>Level</td>
</tr>
<tr>
<td colspan="5"><hr></td>
</tr>
<tr jwcid="@Foreach" source="ognl:customerList" value="ognl:customer" element="tr">
<td><span jwcid="@Insert" value="ognl:customer.id"/></td>
<td> </td>
<td><span jwcid="@ActionLink" listener="ognl:listeners.customerSelectAction"> <span jwcid="@Insert" value="ognl:customer.fullName"/> </span></td>
<td> </td>
<td><span jwcid="@Insert" value="ognl:customer.memberLevel"/></td>
</tr>
</table>
<property-specification name="customerList" type="java.util.List" persistent="yes"/>
<property-specification name="customer" type="Customer"/>
public abstract class SalesPage extends BasePage {
public abstract List getCustomerList();
public abstract List setCustomerList(List value);
public abstract Customer getCustomer();
public void customerSelectAction(IRequestCycle cycle) {
Customer customer = getCustomer();
// Do something with customer
}
}
public class Customer implements Serializable {
private Integer id;
private String fullName;
private String memberLevel;
public Customer(Integer id, String fullName, String memberLevel) {
this.id = id;
this.fullName = fullName;
this.memberLevel = memberLevel;
}
public Integer getId() { return id; }
public String getFullName() { return fullName; }
public String getMemberLevel() { return memberLevel; }
}
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