com.facebook.buck.core.model

Class OutputLabel

java.lang.Object

com.facebook.buck.core.model.OutputLabel

All Implemented Interfaces:

AddsToRuleKey, Comparable<OutputLabel>

public class OutputLabel
extends Object
implements Comparable<OutputLabel>, AddsToRuleKey

Type-safe wrapper for a target output label.

A build target can return different outputs groups, with each output group potentially containing zero or more outputs. A target output label is used to refer to a particular output group in a target.

With providers, the output label maps to named output groups in DefaultInfo. With the old action graph, each rule should maintain an internal mapping of output labels to output groups.

A DEFAULT output label is provided when the user has not specified a named output label in a build target. For example, "//foo:bar" would be associated with the default output label, whereas "//foo:bar[baz] would be associated with the named label "baz".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OutputLabel.Internals Provides access to internal implementation details of OutputLabels.

Method Summary

Modifier and Type	Method and Description
int	compareTo(OutputLabel o)
static OutputLabel	defaultLabel() Returns the output label for default outputs.
boolean	equals(Object o)
int	hashCode()
static OutputLabel.Internals	internals()
boolean	isDefault()
static OutputLabel	of(String label) Returns an output label wrapping the given String.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

of

public static OutputLabel of(String label)

Returns an output label wrapping the given String. Use defaultLabel() to get the default empty output label.

Throws:

IllegalArgumentException - if the given label is an empty string

defaultLabel

public static OutputLabel defaultLabel()

Returns the output label for default outputs.

isDefault

public boolean isDefault()

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(OutputLabel o)

Specified by:

compareTo in interface Comparable<OutputLabel>

internals

public static OutputLabel.Internals internals()