import?java.util.HashMap;
import?java.util.Properties;

import?com.sap.conn.jco.JCoDestination;
import?com.sap.conn.jco.JCoDestinationManager;
import?com.sap.conn.jco.JCoException;
import?com.sap.conn.jco.ext.DataProviderException;
import?com.sap.conn.jco.ext.DestinationDataEventListener;
import?com.sap.conn.jco.ext.DestinationDataProvider;

/**
?*?Each?application?using?Java?Connector?3?deals?with?destinations.?A?destination?represents?a?logical?address?
?*?of?an?ABAP?system?and?thus?separates?the?destination?configuration?from?application?logic.?JCo?retrieves
?*?the?destination?parameters?required?at?runtime?from?DestinationDataProvider?and?ServerDataProvider?registered
?*?in?the?runtime?environment.?If?no?provider?is?registered?JCo?uses?the?default?implementation?that?reads?the?
?*?configuration?from?a?properties?file.?It?is?expected?that?each?environment?provides?a?suitable?
?*?implementation?that?meets?security?and?other?requirements.?Furthermore?only?one?DestinationDataProvider?
?*?and?only?one?ServerDataProvider?can?be?registered?per?process.?The?reason?behind?this?design?decision?
?*?is?the?following:?the?provider?implementations?are?part?of?the?environment?infrastructure.?
?*?The?implementation?should?not?be?application?specific?and?in?particular?must?be?separated?from?
?*?application?logic.?
?*?
?*?This?example?demonstrates?a?simple?implementation?of?the?DestinationDataProvider?interface?and?shows?how
?*?to?register?it.?A?real?world?implementation?should?save?the?configuration?data?in?a?secure?way.
?*/
public?class?CustomDestinationDataProvider
{
????//The?custom?destination?data?provider?implements?DestinationDataProvider?and
????//provides?an?implementation?for?at?least?getDestinationProperties（String）.
????//Whenever?possible?the?implementation?should?support?events?and?notify?the?JCo?runtime
????//if?a?destination?is?being?created?changed?or?deleted.?Otherwise?JCo?runtime
????//will?check?regularly?if?a?cached?destination?configuration?is?still?valid?which?incurs
????//a?performance?penalty.
????static?class?MyDestinationDataProvider?implements?DestinationDataProvider
????{
????????private?DestinationDataEventListener?eL;
????????private?HashMap?secureDBStorage?=?new?HashMap（）;
????????
????????public?Properties?getDestinationProperties（String?destinationName）
????????{
????????????try
????????????{
????????????????//read?the?destination?from?DB
????????????????Properties?p?=?secureDBStorage.get（destinationName）;

????????????????if（p!=null）
????????????????{
????????????????????//check?if?all?is?correct?for?example
????????????????????if（p.isEmpty（））
????????????????????????throw?new?DataProviderException（DataProviderException.Reason.INVALID_CONFIGURATION?“destination?configuration?is?incorrect“?null）;

????????????????????return?p;
????????????????}
????????????????
????????????????return?null;
????????????}
????????????catch（Ru

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????3957684??2017-07-17?22:25??sapjco30P_17\sapjco30P_17-64-Linux\sapjco3-linuxx86_64-3.0.17.tgz

?????文件???????6776??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\CustomDestinationDataProvider.java

?????文件??????11934??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\MultiThreadedExample.java

?????文件??????14633??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\RepositoryChain.java

?????文件???????6510??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\StatefulServerExample.java

?????文件??????12998??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\StepByStepClient.java

?????文件??????16574??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\examples\StepByStepServer.java

?????文件??????15018??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\allclasses-frame.html

?????文件??????13118??2017-07-18?03:23??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\allclasses-noframe.html

?????文件??????28043??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\AbapClassException.html

?????文件??????15024??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\AbapClassException.Mode.html

?????文件??????21751??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\AbapException.html

?????文件??????11538??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\About.html

?????文件???????9317??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\AbapClassException.html

?????文件??????10413??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\AbapClassException.Mode.html

?????文件??????17351??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\AbapException.html

?????文件???????5880??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\About.html

?????文件???????6020??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\ConversionException.html

?????文件???????5860??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCo.html

?????文件??????13995??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoAbapobject.html

?????文件???????9696??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoAttributes.html

?????文件??????11982??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoBackgroundUnitAttributes.html

?????文件??????13589??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoClassmetaData.html

?????文件??????11907??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoClassmetaData.JCoAttributeKind.html

?????文件???????5930??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoContext.html

?????文件???????8225??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoCustomDestination.html

?????文件???????8458??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoCustomDestination.SncConfigurationData.html

?????文件???????8246??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoCustomDestination.UserData.html

?????文件???????8165??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoCustomRepository.html

?????文件???????9985??2017-07-18?03:22??sapjco30P_17\sapjco30P_17-64-Windows\sapjco3-NTAMD64-3.0.17\javadoc\com\sap\conn\jco\class-use\JCoCustomRepository.QueryMode.html

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