Notice: this Wiki will be going read only early in 2024 and edits will no longer be possible. Please see: https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan for the plan.
Difference between revisions of "EDT:Writing statements"
| Line 5: | Line 5: | ||
== Case == | == Case == | ||
| − | The case statement | + | The case statement never runs more than one clause: |
| − | * You can test a criterion value. The following example invokes <code>mySecondFunction</code> if the field value is 2, 3, or 4: | + | *You can test a criterion value. The following example invokes <code>mySecondFunction</code> if the field value is 2, 3, or 4: |
<source lang="java">case (myRecord.requestID) | <source lang="java">case (myRecord.requestID) | ||
| Line 19: | Line 19: | ||
</source> | </source> | ||
| − | * You can test a set of logical expressions | + | *You can test a set of logical expressions. The following example displays only "x passes": |
<source lang="java"> | <source lang="java"> | ||
Revision as of 12:06, 13 February 2012
EGL provides general statements, as well as statements that are used for interacting with an external data source.
General statements
Case
The case statement never runs more than one clause:
- You can test a criterion value. The following example invokes
mySecondFunctionif the field value is 2, 3, or 4:
case (myRecord.requestID) when (1) myFirstFunction(); when (2, 3, 4) mySecondFunction(); otherwise myDefaultFunction(); end
- You can test a set of logical expressions. The following example displays only "x passes":
function test() x INT = 3; y INT = 5; z INT = 7; case when (x == 3) SysLib.writeStdOut("x passes"); when (y == 5) SysLib.writeStdOut("y passes"); when (z == 7) SysLib.writeStdOut("z passes"); otherwise SysLib.writeStdErr("You will not see this message."); end end end