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https://issues.apache.org/jira/browse/IBATIS-580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Clinton Begin closed IBATIS-580.
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Resolution: Fixed
Assignee: Clinton Begin
Fixed. Mostly as described, with some refactorings to use naming conventions.
Property to override SqlExecutor implementation is 'named sql_executor_class'
> SQLExecutor plug-ins for iBATIS2
> --------------------------------
>
> Key: IBATIS-580
> URL: https://issues.apache.org/jira/browse/IBATIS-580
> Project: iBatis for Java
> Issue Type: Improvement
> Components: SQL Maps
> Affects Versions: 2.3.4
> Environment: Platform independent
> Reporter: Abhigyan Agrawal
> Assignee: Clinton Begin
> Fix For: 2.3.4
>
> Attachments: junitResults.tar, plugin.patch, src.tar
>
>
> The attached patch file provides the ability in to override the default
> 'SQLExecutor' if required in v2.
> No new test cases need to be added for this functionality, since the existing
> test cases regress these changes. Attached are the ibatis test suites results
> executed with these changes.
> ______________________________________________________________
> Attachments:
> junitResults.tar - iBATIS test suite results with plug-in changes.
> src.tar - Source for plug-in changes.
> plugin.patch - patch file for plug-in changes.
> ______________________________________________________________
> Usage Description
> * User defines a property 'ibatis.sqlExecutor_class' in the iBatis
> properties file. The value is set to the name of the class (user developed)
> that implements the interface com.ibatis.sqlmap.engine.execution.ISqlExecutor
> Description of code changes
> 1. com.ibatis.sqlmap.engine.execution.ISqlExecutor
> - new interface which consists of all the public methods of the the
> default SQLExecutor in iBATIS - com.ibatis.sqlmap.engine.execution.SqlExecutor
> 2. com.ibatis.sqlmap.engine.execution.SqlExecutor
> The default SQLExecutor now implements the ISqlExecutor interface
> 3. com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate
> - Changed the type of the member variable 'sqlExecutor' to the
> interface ISqlExectuor
> - changed return type of method getSqlExecutor() to ISqlExecutor from
> SqlExecutor
> - added method setCustomExecutor(string sqlExecutorClass).
> **Instantiates user specified class that implements interface
> com.ibatis.sqlmap.engine.execution.SqlExecutor
>
> 4. com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.java,
> ExtendedSqlMapClient.java, SqlMapClientImpl.java,
> com.ibatis.sqlmap.engine.mapping.statement.MappedStatement
> - changed the return type of method getSqlExecutor() to ISqlExecutor
> from SqlExecutor
> 5. com.ibatis.sqlmap.engine.builder.xml.XmlParserState
> setGlobalProperties() - If the 'ibatis.sqlExecutor_class' property is
> defined in the properties file, reads it and invokes
> SqlMapExecutorDelegate.setCustomExecutor(valueOfDefinedSqlExecutor)
> ** The SqlMapExecutorDelegate instantiates the default SQLExecutor in its
> constructor. Initially had removed this and had the sqlExecutor always
> instantiated via a setter. With this XmlParserState.setGlobalProperties()
> always called the setter, to instantiate the Default or user-overridden
> sqlExecutor. The problem with this was that it is not mandatory to have a
> ibatis properties file, in which case the
> XmlParserState.setGlobalProperties() is not invoked. Given the parsing logic,
> couldn't find a appropriate place to invoke the getter to instantiate the
> default SQLExecutor and reverted to having it instantiated in the constructor
> setCustomExecutor re-initializes the 'sqlExecutor'. Assumed this is OK,
> since it is always invoked during config setup and hence also the
> reinitialization doesn't need to be synchronized.
> * It could have been possible to have this via a new property defined in the
> SqlMapConfig.xml. However given how many folks are probably going to use it,
> and the amount of changes, chose the property file approach.
> ---- 4 March 2009: Changed property name from 'sqlExecutor' to
> 'ibatis.sqlExecutor_class'. Updated patch and source.
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