## com.google.common.reflect
Class ImmutableTypeToInstanceMap.Builder<B>

    java.lang.Object
      com.google.common.reflect.ImmutableTypeToInstanceMap.Builder<B>

Enclosing class:
  ImmutableTypeToInstanceMap<B>

    @Beta
    public static final class ImmutableTypeToInstanceMap.Builder<B>

extends Object

A builder for creating immutable type-to-instance maps. Example:

       static final ImmutableTypeToInstanceMap<Handler<?>> HANDLERS =
           ImmutableTypeToInstanceMap.<Handler<?>>builder()
               .put(new TypeToken<Handler<Foo>>() {}, new FooHandler())
               .put(new TypeToken<Handler<Bar>>() {}, new SubBarHandler())
               .build();

After invoking `build()` it is still possible to add more entries and build again. Thus each map generated by this builder will be a superset of any map generated before it.

Since:
  13.0

Method Summary
`ImmutableTypeToInstanceMap<B>` `build()` Returns a new immutable type-to-instance map containing the entries provided to this builder.

`

`<T extends B> ImmutableTypeToInstanceMap.Builder<B>`

`

`put(Class<T> key, T value)`
Associates `key` with `value` in the built map.

`

`<T extends B> ImmutableTypeToInstanceMap.Builder<B>`

`

`put(TypeToken<T> key, T value)`
Associates `key` with `value` in the built map.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### put

    public <T extends B> ImmutableTypeToInstanceMap.Builder<B> put(Class<T> key,
                                                                   T value)

  Associates `key` with `value` in the built map. Duplicate keys are not allowed, and will cause `build()` to fail.

### put

    public <T extends B> ImmutableTypeToInstanceMap.Builder<B> put(TypeToken<T> key,
                                                                   T value)

  Associates `key` with `value` in the built map. Duplicate keys are not allowed, and will cause `build()` to fail.

### build

    public ImmutableTypeToInstanceMap<B> build()

  Returns a new immutable type-to-instance map containing the entries provided to this builder.

  Throws:
    `IllegalArgumentException` - if duplicate keys were added

Copyright © 2010-2012. All Rights Reserved.