Yes, I believe you are correct on all points. ---------------------------------------------------------------------------------------
Joe Veilleux
IBM/Lotus Domino Server Quality Engineering
550 King Street
Littleton MA 01460
Email: joeveill...@us.ibm.com
Sharon
Lucas/Austin/IBM
To
10/26/2011 01:36 Joseph J
PM Veilleux/Lexington/IBM@IBMUS
cc
Cindy Zhu <c...@fekete.com>,
"staf-users@lists.sourceforge.net"
<staf-users@lists.sourceforge.net>
Subject
Re: [staf-users] Iterating a
dictionary in a STAX job(Document
link: Joseph J Veilleux)
Right, I should have shown it as follows:
<script>testsWin = {'Harmony':0,'DeclinePlus':0, 'Harmony1':0, 'RTA':0}
</script>
<iterate var="test" in="sorted(testsWin.iterkeys())">
<log message="1">'test=%s' % test</log>
</iterate>
But, I don't think that Cindy wanted to sort the Map by key. She wanted to
sort the map by order of insertion.
--------------------------------------------------------------
Sharon Lucas
IBM Austin, luc...@us.ibm.com
(512) 286-7313 or Tieline 363-7313
From: Joseph J Veilleux/Lexington/IBM
To: Sharon Lucas/Austin/IBM@IBMUS,
Cc: Cindy Zhu <c...@fekete.com>, "staf-users@lists.sourceforge.net"
<staf-users@lists.sourceforge.net>
Date: 10/26/2011 12:11 PM
Subject: Re: [staf-users] Iterating a dictionary in a STAX job
Sharon, the List.sort() method in Python sorts a list in-place (i.e. it
operates on the list itself; it does not yield a sorted list as output), so
I doubt that the suggestion in your second paragraph would work, at least
not in the specific way you have shown it.
---------------------------------------------------------------------------------------
Joe Veilleux
IBM/Lotus Domino Server Quality Engineering
550 King Street
Littleton MA 01460
Email: joeveill...@us.ibm.com
Sharon
Lucas/Austin/IBM@
IBMUS To
Cindy Zhu <c...@fekete.com>
10/25/2011 04:54 cc
PM "staf-users@lists.sourceforge.net"
<staf-users@lists.sourceforge.net>
Subject
Re: [staf-users] Iterating a
dictionary in a STAX job
A dictionary (dict) in Python does not preserve order. Instead of order, a
dictionary uses a hashing algorithm to identify each item's place in the
dictionary for fast lookup. For more information, google for information
about Python dictionaries, for example, see
http://homepage.mac.com/s_lott/books/python/html/p02/p02c05_maps.html.
You could sort the keys (e.g. testsWin.keys().sort(), but that will sort
the keys in alphabetical order, not the order in which you defined them.
Instead, you could use a list as it preserves order (if you didn't really
need a dictionary). For example, a list of strings, or a list of
dictionaries, or what ever you needed. If you really need to use a
dictionary, you could do something like described at
http://stackoverflow.com/questions/60848/how-do-you-retrieve-items-from-a-dictionary-in-the-order-that-theyre-inserted
.
Here's an example that uses a list of strings:
<script>
testsWin = [ 'Harmony', 'DeclinePlus', 'Harmony1', 'RTA' ]
</script>
<iterate var="test" in="testsWin">
<log message="1">'test=%s' % test</log>
</iterate>
STAX Job's Message/Log Output:
---------------------------------------------------
20111025-15:36:47 Info test=Harmony
20111025-15:36:47 Info test=DeclinePlus
20111025-15:36:47 Info test=Harmony1
20111025-15:36:47 Info test=RTA
Or you could use a list of dictionaries if you needed to store more
information about each item in the list. For example:
<script>
testsWin = [ {'name':'Harmony', 'count':0},
{'name':'DeclinePlus', 'count':0},
{'name':'Harmony1', 'count':0},
{'name':'RTA', 'count':0}
]
</script>
<iterate var="test" in="testsWin">
<log message="1">'testName=%s, testCount=%s' % (test['name'], test
['count'])</log>
</iterate>
STAX Job's Message/Log Output:
---------------------------------------------------
20111025-15:36:47 Info testName=Harmony,
testCount=0
20111025-15:36:47 Info testName=DeclinePlus,
testCount=0
20111025-15:36:47 Info testName=Harmony1,
testCount=0
20111025-15:36:47 Info testName=RTA, testCount=0
Note that in Python 2.7, an OrderedDict API was added that provides the
same interface as regular dictionaries but iterates over keys and values in
a guaranteed order depending on when a key was first inserted. However,
STAX V3.5.0 and later uses Jython 2.5.2 which is the latest Jython version
available and is based on Python 2.5 so it doesn't support the OrderedDict
API. Jython development lags behind Python.
--------------------------------------------------------------
Sharon Lucas
IBM Austin, luc...@us.ibm.com
(512) 286-7313 or Tieline 363-7313
From: Cindy Zhu <c...@fekete.com>
To: "staf-users@lists.sourceforge.net"
<staf-users@lists.sourceforge.net>,
Date: 10/25/2011 03:05 PM
Subject: [staf-users] Iterating a dictionary in a STAX job
Hi,
I have the following STAX job to iterate a dictionary and print out the
keys in the dictionary.
<script>
testsWin = {'Harmony':0,'DeclinePlus':0, 'Harmony1':0,
'RTA':0}
</script>
<defaultcall function="main" />
<function name="main" scope="local">
<sequence>
<iterate var="test" in="testsWin.keys()">
<log message="1">'test=%s' % test</log>
</iterate>
</sequence>
</function>
The log message shows in this order: Harmony1, DeclinePlus, RTA, Harmony.
Is there a way to make the print out(message) has the same key order as
that in variable testsWin?
Thanks,
Cindy
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