com.facebook.buck.core.graph.transformation

Interface ComputationEnvironment

public interface ComputationEnvironment

A computation environment that GraphComputation can access. This class provides the execution context for the GraphComputation, such as the dependencies required for this transformation.

Method Summary

Modifier and Type	Method and Description
<KeyType extends ComputeKey<ResultType>,ResultType extends ComputeResult> ResultType	getDep(KeyType key)
com.google.common.collect.ImmutableMap<? extends ComputeKey<?>,? extends ComputeResult>	getDeps()
<KeyType extends ComputeKey<ResultType>,ResultType extends ComputeResult> com.google.common.collect.ImmutableMap<KeyType,ResultType>	getDeps(ComputationIdentifier<ResultType> identifier)

Method Detail

getDeps

com.google.common.collect.ImmutableMap<? extends ComputeKey<?>,? extends ComputeResult> getDeps()

Returns:

an immutable map containing the requested deps and their results. The dependencies here are all of the keys returned from GraphComputation.discoverDeps(Key, com.facebook.buck.core.graph.transformation.ComputationEnvironment)

getDep

<KeyType extends ComputeKey<ResultType>,ResultType extends ComputeResult> ResultType getDep(KeyType key)

Type Parameters:

KeyType - the type of the key

ResultType - the corresponding result type

Parameters:

key - the key requested

Returns:

a casted result of the specific key

getDeps

<KeyType extends ComputeKey<ResultType>,ResultType extends ComputeResult> com.google.common.collect.ImmutableMap<KeyType,ResultType> getDeps(ComputationIdentifier<ResultType> identifier)

Type Parameters:

KeyType - the type of the key

ResultType - the corresponding result type

Parameters:

identifier - the identifier of the keys

Returns:

a casted result of all the keys value pairs of the given class