T
- The type of the computed value.public abstract class ComputeValueFromState<T> extends Delegate
ITimeBasedState
.
Ensure that this callback is thread-safe and does not close over any instances of objects that may cause problems with cloning, such as evaluators.
Modifier and Type | Class and Description |
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static interface |
ComputeValueFromState.Function<T>
A functional interface for the containing delegate type.
|
Constructor and Description |
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ComputeValueFromState()
Creates a new instance of this delegate.
|
ComputeValueFromState(Class<?> targetClass,
String methodName,
Class<?>... methodParameterClasses)
Initializes a delegate that will invoke a static method on a class.
|
ComputeValueFromState(Object targetObject,
String methodName,
Class<?>... methodParameterClasses)
Initializes a delegate that will invoke an instance method on a class instance.
|
Modifier and Type | Method and Description |
---|---|
abstract T |
invoke(ITimeBasedState state)
A callback to compute some value from a
ITimeBasedState . |
static <T> ComputeValueFromState<T> |
of(ComputeValueFromState.Function<T> f)
Create a delegate for the given interface.
|
static <T> ComputeValueFromState<T> |
of(ComputeValueFromState.Function<T> f,
Class<?> targetClass,
String methodName,
Class<?>... methodParameterClasses)
Create a delegate for the given interface.
|
static <T> ComputeValueFromState<T> |
of(ComputeValueFromState.Function<T> f,
Object targetObject,
String methodName,
Class<?>... methodParameterClasses)
Create a delegate for the given interface.
|
public ComputeValueFromState()
public ComputeValueFromState(@Nonnull Object targetObject, @Nonnull String methodName, @Nonnull Class<?>... methodParameterClasses)
targetObject
- The class instance on which the delegate will invoke the method.methodName
- The name of the instance method.methodParameterClasses
- The type of the parameters of the instance method.public ComputeValueFromState(@Nonnull Class<?> targetClass, @Nonnull String methodName, @Nonnull Class<?>... methodParameterClasses)
targetClass
- The class that defines the method.methodName
- The name of the static method.methodParameterClasses
- The type of the parameters of the static method.public abstract T invoke(ITimeBasedState state)
ITimeBasedState
.
Ensure that this callback is thread-safe and does not close over any instances of objects that may cause problems with cloning, such as evaluators.
state
- The state to compute values from.@Nonnull public static <T> ComputeValueFromState<T> of(@Nonnull ComputeValueFromState.Function<T> f)
f
- The function which will be invoked.@Nonnull public static <T> ComputeValueFromState<T> of(@Nonnull ComputeValueFromState.Function<T> f, @Nonnull Object targetObject, @Nonnull String methodName, @Nonnull Class<?>... methodParameterClasses)
f
- The function which will be invoked.targetObject
- The class instance on which the delegate will invoke the method.methodName
- The name of the instance method.methodParameterClasses
- The type of the parameters of the instance method.@Nonnull public static <T> ComputeValueFromState<T> of(@Nonnull ComputeValueFromState.Function<T> f, @Nonnull Class<?> targetClass, @Nonnull String methodName, @Nonnull Class<?>... methodParameterClasses)
f
- The function which will be invoked.targetClass
- The class that defines the method.methodName
- The name of the static method.methodParameterClasses
- The type of the parameters of the static method.