Unit JCoreOPFCriteriaSQL

DescriptionUsesClasses, Interfaces, Objects and RecordsFunctions and ProceduresTypesConstantsVariables

Description

 

Uses

Overview

Classes, Interfaces, Objects and Records

Name Description
Class TJCoreOPFSQLCriterionList  
Class TJCoreOPFSQLCriteriaAlias  
Class TJCoreOPFSQLCriteriaAliasList  
Class TJCoreOPFSQLCriteria  
Class TJCoreOPFCriterionValueExpression  
Class TJCoreOPFCriterionSQLExpression  
Class TJCoreOPFCriteriaRestriction  

Types

TJCoreOPFSQLCriteriaJoinType = (...);
TJCoreOPFSQLCriteriaAbstractFetchStrategy = (...);

Description

Types

TJCoreOPFSQLCriteriaJoinType = (...);
 
Values
  • jcjtInnerJoin:  
  • jcjtLeftOuterJoin:  
TJCoreOPFSQLCriteriaAbstractFetchStrategy = (...);

Strategy used to fetch abstract classes.

Values
  • jcfsLinkSubMaps: uses left outer join with all descendant classes and retrieve it's ID in order to know the actual class of an object. A second query is sent to the database to retrieve the fields of the subclasses, if necessary.
  • jcfsFetchSubMaps: uses left outer join with all descendant classes and retrieve all it's field in order to create the whole object with just one query.

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