RuleKeyFactory (Buck)

All Known Subinterfaces:

RuleKeyFactoryWithDiagnostics<RULE_KEY>

All Known Implementing Classes:

ContentAgnosticRuleKeyFactory, DefaultRuleKeyFactory, InputBasedRuleKeyFactory
```
public interface RuleKeyFactory<RULE_KEY>
```

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`RULE_KEY`	`build(BuildEngineAction action)`	Creates a new `RULE_KEY` for the given `BuildEngineAction`.
`default RULE_KEY`	`getFromCache(BuildEngineAction action)`	Returns a `RULE_KEY` from an internal cache, if possible.
`default Optional<Long>`	`getInputSizeLimit()`

- Method Detail
  - build
```
RULE_KEY build(BuildEngineAction action)
```
    Creates a new RULE_KEY for the given BuildEngineAction. In most cases RULE_KEY is going to be RuleKey, but it can be anything really.
    
    Parameters:
    
    action - The build rule to create the key for.
    
    Returns:
    
    A rule key.
  - getFromCache
```
@Nullable
default RULE_KEY getFromCache(BuildEngineAction action)
```
    Returns a RULE_KEY from an internal cache, if possible. If a non-null value is returned, it is guaranteed to be he same as if build(com.facebook.buck.core.build.action.BuildEngineAction) were called instead.
    
    Parameters:
    
    action -
  - getInputSizeLimit
```
default Optional<Long> getInputSizeLimit()
```