com.google.gwt.inject.rebind.resolution

Class DependencyGraph

java.lang.Object

com.google.gwt.inject.rebind.resolution.DependencyGraph

public class DependencyGraph
extends Object

A graph of the dependency information between types that need to be injected at a given injector, called the origin.

A DependencyGraph consists of a set of dependencies linking dependency nodes (keys). Each edge explains how a particular node came to be required: for instance, a key may be required in the @Inject constructor of a class, or it might be required by the Ginjector. There are two kinds of dependency nodes:

• Pre-existing dependency nodes contain a Key and a GinjectorBindings. They represent keys that are already available on some Ginjector in the hierarchy and visible to the origin.
• Internal dependency nodes represent bindings that are not already created/available, but that can have implicit bindings created for them. They contain the Key that the binding is for and the Binding that can be created.
• In addition, some nodes may represent errors. These contain a Key and a String describing the error. These nodes are created for keys that do not already exist and for which we cannot create an implicit binding.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DependencyGraph.Builder
static class	DependencyGraph.GraphPruner

Method Summary

Modifier and Type	Method and Description
Iterable<Key<?>>	getAllKeys() Returns all the keys that appear in the Dependency Graph, other than the "common root", Dependency.GINJECTOR.
Collection<Dependency>	getDependenciesOf(Key<?> key)
Collection<Dependency>	getDependenciesTargeting(Key<?> key)
GinjectorBindings	getOrigin()
int	size()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

size

public int size()

getOrigin

public GinjectorBindings getOrigin()

getDependenciesOf

public Collection<Dependency> getDependenciesOf(Key<?> key)

getDependenciesTargeting

public Collection<Dependency> getDependenciesTargeting(Key<?> key)

getAllKeys

public Iterable<Key<?>> getAllKeys()

Returns all the keys that appear in the Dependency Graph, other than the "common root", Dependency.GINJECTOR.