ConfigValue annotation for automatically injecting configuration strings

ConfigValue.java

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.enterprise.util.Nonbinding;
import javax.inject.Qualifier;

@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.TYPE})
public @interface ConfigValue {
    // Excludes this value from being considered for injection point matching
    @Nonbinding 
    // Avoid specifying a default value, since it can encourage programmer error.
    // We WANT a value every time.
    String value();
}