Tag: useBean

The wcf:useBean tag creates a list or map object.

Tag information
Tag information
Body Content	empty

Attributes

Attributes
Attribute	Required	Request-time	Type	Description
`var`	`true`	`true`	`java.lang.String`	The name of the scoped instance variable.
`scope`	`false`	`false`	`java.lang.String`	The scope for the instance variables that are specified by the `var` attribute. The scope values are `page`, `request`, `session`, `application`. The default value is `page`.
`classname`	`true`	`true`	`java.lang.String`	The `classname` for which the instance is to be created. The value can be either `List` or `Map`.
`capacity`	`false`	`true`	`java.lang.Integer`	The initial capacity of the list or map instance to be created.

Variables

No variables are defined for the wcf:useBean tag.

Example

The following example uses the wcf:useBean tag to define a HashMap that has the name "cachedCategoryViewMap". This HashMap holds category view objects within the request scope:

<wcf:useBean var="cachedCategoryViewMap" classname="java.util.HashMap" scope="request"/>

The following example uses the wcf:useBean tag to define a list that is to include the "brands" that are within the page scope:

<wcf:useBean var="brands" classname="java.util.ArrayList"/>