hadoop - Hive : reflect function -

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im trying use reflect function of hive have signature :

reflect(class, method[, arg1[, arg2..]])

i want ckeck if column c value hello world ! contains world, wrote :

with (select "hello world !" c) select reflect("java.lang.string",c ,"contains", "world")

but didnt work because not respect signature, tried 

with (select "hello world !" c) select reflect(reflect("java.lang.object","tostring",c) ,"contains", "world")

it didnt work ! want know how apply reflect function on given column ?


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