IBM Switch 15 Bedienungsanleitung PDF herunterladen (Seite 55)

Building Streams

Figure 5-5

Connected nodes

When connecting nodes , there are severa l gu idelines to follow. You will receive an error mes sage

if you attempt to m ake any of the following types o f connections:

 A connection leading to a source node

 A connection leading from a terminal node

 A node having more than its maximum number of input connectio ns

 Connecting two nodes that are already connected

 Circu larity (data retur ns to a node from which it has already ﬂowed)

Bypassing Nodes in a Stream

When you bypass a node in the data stream, all of its input and output con nections are replaced by

connec tions that lead directly f r om its input nodes to its output nodes. If the node does not have

both input and output connections, then all of its connec tions are deleted rather than rerout ed .

For example, you might have a stream that derives a new ﬁe ld, ﬁlters ﬁelds, and t he n e xplores

the results in a histogram and table. If you wan t to also view the same graph an d table for data

before ﬁelds are ﬁltered, you can add either new Histogram and Table nodes to the stream, or you

can bypass the Filter node. When y ou bypass the Filter n ode, the connections to the g r aph and

table pass directly from the Derive node. The F ilter node is disconnected from the stream.

Figure 5-6

Bypassing a previously connected Filter node

To Bypass a Node

E On the stream ca nvas, use th e middle mouse button to dou ble-click the node that you want to

bypass. Alternatively, you can use Alt+double- click .

Note: You can undo this action clicking Undo on th e Edit menu or by pressing Ctrl+Z.

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IBM Switch 15 Bedienungsanleitung Seite 55