Package org.apache.empire.db.expr.compare

This package contains SQL-generator classes for compare expressions used in the where and having clause.

See:
          Description

Class Summary
DBCompareAndOrExpr This class is used for combining two filter constraints by and / or operator
There is no need to explicitly create instances of this class.
DBCompareColExpr This class is used for defining filter constraints based on a column expression in SQL
There is no need to explicitly create instances of this class.
DBCompareExpr This class is a common base class for all SQL filter constraints classes
DBCompareNotExpr This class is used for defining filter constraints based on a column expression in SQL
There is no need to explicitly create instances of this class.
DBExistsExpr This class is used for building up the SQL-Command for the EXISTS syntax.
 

Package org.apache.empire.db.expr.compare Description

This package contains SQL-generator classes for compare expressions used in the where and having clause. There is no need to use these classes directly. They are internally created through functions on the DBColumnExpr object.