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• javax.servlet.jsp.jstl.core: Javadoc index of package javax.servlet.jsp.jstl.core.


Package Samples:

• javax.servlet.jsp.jstl.core

Classes:

• LoopTagSupport: Base support class to facilitate implementation of iteration tags. Since most iteration tags will behave identically with respect to actual iterative behavior, JSTL provides this base support class to facilitate implementation. Many iteration tags will extend this and merely implement the hasNext() and next() methods to provide contents for the handler to iterate over. In particular, this base class provides support for: Iteration control, based on protected prepare() , next() , and hasNext() methods Subsetting ( begin , end , step> functionality, including validation of subset parameters for sensibility) ...
• ConditionalTagSupport: Abstract class that facilitates implementation of conditional actions where the boolean result is exposed as a JSP scoped variable. The boolean result may then be used as the test condition in a <c:when> action. This base class provides support for: Conditional processing of the action's body based on the returned value of the abstract method condition() . Storing the result of condition() as a Boolean object into a JSP scoped variable identified by attributes var and scope .
• LoopTag: JSTL allows developers to write custom iteration tags by implementing the LoopTag interface. This is not to be confused with javax.servlet.jsp.tagext.IterationTag as defined in JSP 1.2. LoopTag establishes a mechanism for iteration tags to be recognized and for type-safe implicit collaboration with custom subtags. In most cases, it will not be necessary to implement this interface manually, for a base support class ( LoopTagSupport ) is provided to facilitate implementation.
• LoopTagStatus: Exposes the current status of an iteration. JSTL provides a mechanism for LoopTags to return information about the current index of the iteration and convenience methods to determine whether or not the current round is either the first or last in the iteration. It also lets authors use the status object to obtain information about the iteration range, step, and current object. Environments that require more status can extend this interface.
• Config: Class supporting access to configuration settings.

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