@GwtCompatible public interface Supplier<T>
java.util.function.Supplier. Semantically, this could be a factory, generator, builder, closure, or something else entirely. No guarantees are implied by this interface.
Suppliers class provides common suppliers and related utilities.
See the Guava User Guide article on the use of functional types.
This interface is now a legacy type. Use
java.util.function.Supplier (or the
appropriate primitive specialization such as
IntSupplier) instead whenever possible.
Otherwise, at least reduce explicit dependencies on this type by using lambda expressions
or method references instead of classes, leaving your code easier to migrate in the future.
To use an existing supplier instance (say, named
supplier) in a context where the
other type of supplier is expected, use the method reference
future version of
com.google.common.base.Supplier will be made to extend
java.util.function.Supplier, making conversion code necessary only in one direction. At that
time, this interface will be officially discouraged.
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