Change Log

Dagger 2 (Components)

Version 2.4 (2016-04-21)

  • Adds @Binds API for delegating one binding to another
  • Adds @IntoSet, @ElementsIntoSet and @IntoMap to replace @Provides(type = ...) and @Produces(type = ...)
  • Allow injection of Provider<Lazy<Foo>>
  • Report an error if a @Scope annotation is applied to an @Inject constructor
  • Remove the ability to set the production executor on a component builder.
  • Ensure that no binding methods are binding framework types.
  • New format of dependency traces in error messages
  • Fixed bug: Exception when a binding in a parent that is used only in a subcomponent depends on a binding in the subcomponent
  • Update to JavaPoet 1.6.1 and Google Java Format 1.0

Version 2.3 (2016-04-08)

Version 2.2 (2016-03-22)

  • dagger.mapkeys moved to dagger.multibindings and all @MapKey implementations now correctly have @Beta applied
  • Better error messages for multibindings
  • Compiler bug fixes!

Version 2.1 (2016-03-10)

  • Correctly handle @Components that inject generated types
  • Adds @ProductionSubcomponent and @ProductionScope
  • Allow the production Executor to be bound with @Production
  • Allow multiple scope annotations on components
  • A component's subcomponents’ (and their subcomponents’) simple names no longer need to be unique
  • Adds the ability to depend on subcomponent builders
  • GWT Integration
  • Producers monitoring
  • Multibindings for producers
  • Add common @MapKey annotations to dagger.mapkeys. These annotations are not, but should be marked @Beta (since the @MapKey itself is beta).
  • Lots of bug fixes!

Version 2.0.2 (2015-11-03)

A patch release, most crucially including:

  • A fix to the way processor validation of types is done that permits dagger to play more nicely with other processors, avoiding over-validating aspects that it doesn't need, which may yet not have been generated by other processors in a different round of processing.
  • Some improved error reporting for edge-cases
  • Fix to prevent incompatible versions of Guava on the classpath from blowing up processing
  • Support a more robust set of types for map keys in map bindings (primitive types, etc.)

Version 2.0.1 (2015-05-28)

A maintenance release fixing immediate issues following the Dagger 2.0 release, including:

  • Speed up Graph Validation (reduce build times by 10s of seconds on sampled large projects)
  • Generate correct code for @MapKey annotation types (beta)
  • Fix to properly emit code for class literal values in @MapKey annotations.
  • Fix for injecting component dependencies
  • Fixes to generated code to account for differences in generics handling in ecg vs. javac.
  • Subcomponents can now be abstract classes.
  • Subcomponents now properly build the object graph in some cases involving explicit bindings and (sub)components without scope.
  • Improve runtime performance of SetFactory (set multibindings)
  • Other smaller fixes, refactorings, etc.

Version 2.0.0 (2015-04-21)

The initial release of the 2.0 code-line, supporting:

  • @Component interfaces representing a custom API to access a graph of objects
  • JSR-330 injection automation using @Inject signals, @Qualifiers
  • Simple bindings of implementations to interfaces, custom provision of objects, and set-bindings
  • Compile-time validation of graph structure (cycles, missing bindings, duplicate bindings)
  • Generation of
    • backing implementations for components
    • factories for @Inject constructors and modules
    • members-injectors for @Inject methods and fields
  • Beta support for

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Dagger 1 (ObjectGraph)

Version 1.2.0 (2013-12-13)

  • Numerous performance improvements in both the compiler and runtime.
    • Use more efficient String concatenation.
    • Module adapters are now stateless.
    • Use read/write locks over global locks.
    • Reflective constructor invocation is now cached with Class.newInstance.
    • Avoid re-linking all bindings when calling .plus().
  • Set bindings are now unioned when calling .plus().
  • Fix: Tolerate missing type information during compilation by deferring writing module adapters.

Version 1.1.0 (2013-08-05)

  • Module loading now requires code generation via the ‘dagger-compiler’ artifact.
  • Allow multiple contributions to Set binding via Provides.Type.SET_VALUES.
  • Request classloading from the classloader of the requesting object, not the current thread's context classloader.
  • Cache class loading at the root injector to reduce costs of loading adapters.
  • Fix: Primitive array types are no longer incorrectly changed to their boxed type.
  • Update JavaWriter to 2.1.1.

Version 1.0.1 (2013-06-03)

  • Explicitly forbid declaring @Inject on a class type (e.g., @Inject class Foo {}).
  • Update JavaWriter to 1.0.5.

Version 1.0.0 (2013-05-07)

Initial release.