Which one will get better performance when traversing an ArrayList, iterat
hi, everyone,
Which one will get better performance when traversing an ArrayList, iterators, or index(get(i))?
Any reply would be valuable.
Thank you in advance.
Use the iterator, or a foreach loop, which is just syntactic sugar over an iterator. The cases where there is a noticeable difference will be extremely rare. You would only use get() if you actually measured a bottleneck, changed it, re-tested, and found significant improvement. An iterator will give O(n) time for iterating over any collection. Using get() only works on Lists, and for a LinkedList, gives O(n^2).
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HI
Different Mapping Techniques are available in XI. They are: Message Mapping, XSLT Mapping, Java Mapping and ABAP mapping.
u2022The integration repository includes a graphical mapping editor. It includes built-in functions for value transformations and queue and context handling. There is an interface for writing user-defined functions (java) as well.
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See these:
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10dd67dd-a42b-2a10-2785-91c40ee56c0b
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i
/people/thorsten.nordholmsbirk/blog/2006/08/10/using-jaxp-to-both-parse-and-emit-xml-in-xi-java-mapping-programs
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1) Java mapping are used when graphical mapping cannot help you.
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http://help.sap.com/saphelp_nw70/helpdata/EN/ba/e18b1a0fc14f1faf884ae50cece51b/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/5c46ab90-0201-0010-42bd-9d0302591383
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e3ead790-0201-0010-64bb-9e4d67a466b4
/people/sameer.shadab/blog/2005/09/29/testing-abap-mapping
ABAP Mapping
/people/udo.martens/blog/2006/08/23/comparing-performance-of-mapping-programs
https://websmp101.sap-ag.de/~sapdownload/011000358700003082332004E/HowToABAPMapping.pdf
/people/ravikumar.allampallam/blog/2005/02/10/different-types-of-mapping-in-xi
/people/r.eijpe/blog
ABAP Mapping Vs Java Mapping.
Re: Message Mapping of type ABAP Class not being shown
Re: Performance of mappings (JAVA, XSLT, ABAP)
XSLT Mapping
XSLT stands for EXtensible Stylesheet Language Transformations. It is an XML based language for transforming XML documents into any other formats suitable for browser to display, on the basis of set of well-defined rules.
/people/sap.user72/blog/2005/03/15/using-xslt-mapping-in-a-ccbpm-scenario
/people/anish.abraham2/blog/2005/12/22/file-to-multiple-idocs-xslt-mapping
The above menotined are the mapping present in the XI.
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cheers -
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