public interface Context
Object get(Object key) throws ContextException
ContextExceptionboolean contains(Object key)
void put(Object key, Object value) throws IllegalStateException
key - the key of the itemvalue - the itemIllegalStateException - if context is read onlyvoid hide(Object key) throws IllegalStateException
key - the items keyIllegalStateException - if context is read onlyvoid makeReadOnly()