Mybatis parse source code analysis (Chapter I) ------ profile (2)

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1.4 Configuration of the configuration settings provided

Configuration settings configuration settings to process the source object as follows: SqlSessionFactoryBean → SqlSessionBuilder → XMLConfigBuilder → settingsElement

 1 private void settingsElement(Properties props) throws Exception {
 2     // 设置 autoMappingBehavior 属性，默认值为 PARTIAL
 3     configuration.setAutoMappingBehavior(AutoMappingBehavior.valueOf(props.getProperty("autoMappingBehavior", "PARTIAL")));
 4     configuration.setAutoMappingUnknownColumnBehavior(AutoMappingUnknownColumnBehavior.valueOf(props.getProperty("autoMappingUnknownColumnBehavior", "NONE")));
 5     // 设置 cacheEnabled 属性，默认值为 true
 6     configuration.setCacheEnabled(booleanValueOf(props.getProperty("cacheEnabled"), true));
 7 
 8     //Omit part of the code
 . 9  
10      // parse the default processor enumeration 
. 11      <? Class the extends the TypeHandler> typeHandler = (<? Class the extends the TypeHandler>) the resolveClass (props.getProperty ( "defaultEnumTypeHandler" ));
 12 is      // Set default enumeration The processor 
13 is      configuration.setDefaultEnumTypeHandler (typeHandler);
 14      configuration.setCallSettersOnNulls (booleanValueOf (props.getProperty ( "callSettersOnNulls"), to false ));
 15      configuration.setUseActualParamName (booleanValueOf (props.getProperty ( "useActualParamName"), to true ));
 16      
. 17      // omit part of the code 
18 }