org.apache.tapestry5.ioc.services
Interface PerThreadValue<T>

public interface PerThreadValue<T>

Provides access to per-thread (and, by extension, per-request) data, managed by the PerthreadManager. A PerThreadValue stores a particular type of information.

Since:

5.2.0

See Also:

PerthreadManager.createValue()

Method Summary

boolean	exists() Is a value stored (even null)?
T	get() Reads the current per-thread value, or returns null if no value has been stored.
T	get(T defaultValue) Gets the current per-thread value if it exists (even if null), or the defaultValue if no value has been stored.
T	set(T newValue) Sets the current per-thread value, then returns that value.

Method Detail

exists

boolean exists()

Is a value stored (even null)?

get

T get()

Reads the current per-thread value, or returns null if no value has been stored.

get

T get(T defaultValue)

Gets the current per-thread value if it exists (even if null), or the defaultValue if no value has been stored.

set

T set(T newValue)

Sets the current per-thread value, then returns that value.