Apex Reference Guide
jApexPages Class
Use ApexPages to add and check for messages
associated with the current page, as well as to reference the current page.
Namespace
Usage
In addition, ApexPages is used as a namespace for the PageReference Class and the Message Class.
ApexPages Methods
The following are methods for ApexPages. All are instance methods.
addMessage(message)
Add a message to the current page context.
Signature
public Void addMessage(ApexPages.Message message)
Parameters
- message
- Type: ApexPages.Message
Return Value
Type: Void
addMessages(exceptionThrown)
Adds a list of messages to the current page context based
on a thrown exception.
Signature
public Void addMessages(Exception exceptionThrown)
Parameters
- exceptionThrown
- Type: Exception
Return Value
Type: Void
currentPage()
Returns the current page's PageReference.
Signature
public System.PageReference currentPage()
Return Value
Type: System.PageReference
Example
This code segment returns the id parameter of the current page.
1public MyController() {
2 account = [
3 SELECT Id, Name, Site
4 FROM Account
5 WHERE Id =
6 :ApexPages.currentPage().
7 getParameters().
8 get('id')
9 ];
10}getMessages()
Returns a list of the messages associated with the current
context.
Signature
public ApexPages.Message[] getMessages()
Return Value
Type: ApexPages.Message[]
hasMessages()
Returns true if
there are messages associated with the current context, false otherwise.
Signature
public Boolean hasMessages()
Return Value
Type: Boolean
hasMessages(severity)
Returns true if
messages of the specified severity exist, false otherwise.
Signature
public Boolean hasMessages(ApexPages.Severity severity)
Parameters
- sev
- Type: ApexPages.Severity
Return Value
Type: Boolean