Package it.uniroma2.art.semanticturkey.services.annotations

Annotation Interface Optional

@Documented
@Qualifier
@Retention(SOURCE)
@Target(PARAMETER)
public @interface Optional

It indicates that a parameter of an ST service may be omitted in an HTTP request to that service. Since in Java all parameters must be assigned with arguments in a method invocation, the value of an omitted parameter is:

• the result from the conversion of defaultValue() to the parameter type, if defaultValue() has been explicitly assigned a value
• otherwise, the default value for the parameter type according to the rules for the default initialization of Java fields (http://docs.oracle .com/javase/tutorial/java/nutsandbolts/datatypes.html}

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
String	defaultValue

Element Details

defaultValue

String defaultValue

Default:

""