Package org.sonar.plugins.jcl.api.tree

Interface EmptyStringTree

All Superinterfaces:
ExpressionTree, HasTextRange, JclTree
@Beta public interface EmptyStringTree extends ExpressionTree
An empty string, used to mark the absence of a parameter or sub-parameter.
This expression is used when a parameter or sub-parameter is omitted. 
   //TEST1 JOB ,,MSGCLASS=A
   //STEP1 EXEC PGM=MYPGM
   //DD1 DD DSNAME=A.B.C,DISP=(OLD,,DELETE)
In the example above, the first and second parameters of the JOB statement are empty strings. Similarly, the second sub-parameter of the DISP parameter on the DD statement is an empty string.