@ParametersAreNonnullByDefault public class SymbolCounterSUL<I,O> extends Object implements StatisticSUL<I,O>
Constructor and Description |
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SymbolCounterSUL(String name,
SUL<I,O> sul) |
Modifier and Type | Method and Description |
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boolean |
canFork()
Returns whether this SUL is capable of
forking . |
SUL<I,O> |
fork()
Forks this SUL, if possible.
|
Counter |
getStatisticalData() |
void |
post()
shut down SUL.
|
void |
pre()
setup SUL.
|
O |
step(I in)
make one step on the SUL.
|
public void pre()
SUL
public void post()
SUL
@Nullable public O step(@Nullable I in) throws SULException
SUL
step
in interface SUL<I,O>
in
- input to the SULSULException
public boolean canFork()
SUL
forking
.canFork
in interface SUL<I,O>
true
if this SUL can be forked, false
otherwiseSUL.fork()
public SUL<I,O> fork()
SUL
SUL.pre()
and
SUL.post()
.
If SUL.canFork()
returns true
, this method must return a non-null
object, which should
behave exactly like this SUL (in particular, it must be forkable as well). Otherwise, a UnsupportedOperationException
must be thrown.
Implementation note: if resetting a SUL changes the internal state of this object in a non-trivial way (e.g., incrementing a counter to ensure independent sessions), care must be taken that forks of this SUL manipulate the same internal state.
@Nonnull public Counter getStatisticalData()
getStatisticalData
in interface StatisticSUL<I,O>
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