api: add helpers to wrap lambdas with a timer #1087
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Adds helpers to the Timer interface to wrap the common
lambda types in `java.util.function`. This can be useful
to wrap a lambda that is passed to another class in order
to measure each invocation. For example:
```java
Timer t = registry.timer(id);
int sum = Arrays
.stream(new String[] {"foo", "bar", "baz"})
.mapToInt(t.wrapToIntFunction(String::length))
.sum();
```
Caller should ensure that the lambda does sufficient
work that timing an invocatino will not be more costly
than executing the lambda body.
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Adds helpers to the Timer interface to wrap the common lambda types in
java.util.function. This can be useful to wrap a lambda that is passed to another class in order to measure each invocation. For example:Caller should ensure that the lambda does sufficient work that timing an invocatino will not be more costly than executing the lambda body.