return id only if the ids is not null
commitf05bd1d1735973e361586b2d2d23b8f33bf33d03
authorJochen Keil <jochen.keil@gmail.com>
Mon, 21 Jun 2010 15:54:03 +0000 (21 17:54 +0200)
committerJochen Keil <jochen.keil@gmail.com>
Mon, 21 Jun 2010 15:54:03 +0000 (21 17:54 +0200)
tree84a8dbd6732bf3bc666308a0bb3c4cde9aa2b4ee
parentaa7c626f2b4fe93f08b59c2080047319c8f1054c
return id only if the ids is not null
Graph.java