org.apache.tapestry5.services
Interface EnvironmentalAccess<T>

Type Parameters:

T -

public interface EnvironmentalAccess<T>

Provides efficient, cached access to an environmental object.

Since:

5.0.19

See Also:

Environment.getAccess(Class)

Method Summary

T	peek() Peeks at the current top of the configured type's stack.
T	peekRequired() Peeks at the current top of the configured type's stack.

Method Detail

peek

T peek()

Peeks at the current top of the configured type's stack.

Returns:

current value of type, or null.

peekRequired

T peekRequired()

Peeks at the current top of the configured type's stack.

Returns:

the current value

Throws:

RuntimeException - if no environmental of that type has been added