com.google.inject.spi.BindingTargetVisitor Maven / Gradle / Ivy
package com.google.inject.spi;
/**
* Visits each of the strategies used to find an instance to satisfy an injection.
*
* @param any type to be returned by the visit method. Use {@link Void} with
* {@code return null} if no return type is needed.
*/
public interface BindingTargetVisitor {
/**
* Visit a instance binding. The same instance is returned for every injection. This target is
* found in both module and injector bindings.
*/
V visit(InstanceBinding binding);
/**
* Visit a provider instance binding. The provider's {@code get} method is invoked to resolve
* injections. This target is found in both module and injector bindings.
*/
V visit(ProviderInstanceBinding binding);
/**
* Visit a provider key binding. To resolve injections, the provider key is first resolved, then
* that provider's {@code get} method is invoked. This target is found in both module and injector
* bindings.
*/
V visit(ProviderKeyBinding binding);
/**
* Visit a linked key binding. The other key's binding is used to resolve injections. This
* target is found in both module and injector bindings.
*/
V visit(LinkedKeyBinding binding);
/**
* Visit a binding to a key exposed from an enclosed private environment. This target is only
* found in injector bindings.
*/
V visit(ExposedBinding binding);
/**
* Visit an untargetted binding. This target is found only on module bindings. It indicates
* that the injector should use its implicit binding strategies to resolve injections.
*/
V visit(UntargettedBinding binding);
/**
* Visit a constructor binding. To resolve injections, an instance is instantiated by invoking
* {@code constructor}. This target is found only on injector bindings.
*/
V visit(ConstructorBinding binding);
/**
* Visit a binding created from converting a bound instance to a new type. The source binding
* has the same binding annotation but a different type. This target is found only on injector
* bindings.
*/
V visit(ConvertedConstantBinding binding);
/**
* Visit a binding to a {@link com.google.inject.Provider} that delegates to the binding for the
* provided type. This target is found only on injector bindings.
*/
V visit(ProviderBinding binding);
}