package org.qi4j.tutorials.composites.tutorial9; import org.qi4j.api.property.Property; import org.qi4j.library.constraints.annotation.NotEmpty; /** * This interface contains only the state * of the HelloWorld object. * <p/> * The state is declared using Properties. The @NotEmpty annotation is applied to the * method to check that the properties are not set to empty strings. */ public interface HelloWorldState { @NotEmpty Property<String> phrase(); @NotEmpty Property<String> name(); }