Uses of Interface
org.apache.empire.db.expr.column.DBPreparable

Packages that use DBPreparable

Package	Description
org.apache.empire.db.expr.column	This package contains SQL-generator classes for column expressions.
org.apache.empire.db.expr.compare	This package contains SQL-generator classes for compare expressions used in the where and having clause.
org.apache.empire.db.expr.join	This package contains SQL-generator classes for join expressions used in the from clause.
org.apache.empire.dbms.postgresql	This package contains classes necessary to support the PostgreSQL database system.

Uses of DBPreparable in org.apache.empire.db.expr.column

Classes in org.apache.empire.db.expr.column that implement DBPreparable

Modifier and Type	Class and Description
class	DBAbstractFuncExpr This implements some basic functionality for SQL functions based on a column expression
class	DBAliasExpr This class allows column renaming in SQL.
class	DBCoalesceExpr
class	DBConcatFuncExpr DBConcatExpression
class	DBConvertExpr This class is used to convert a value to a different data type.
class	DBDecodeExpr This class is used to decode a set of keys to the corresponding target values.
class	DBFuncExpr This class is used for performing various SQL functions on a column or column expression.
class	DBParenthesisExpr This class allows column renaming in SQL.
class	DBScalarExpr This class is used for declaring scalar functions in SQL (like e.g. random).
class	DBValueExpr This class is used for declaring constant values in SQL.

Uses of DBPreparable in org.apache.empire.db.expr.compare

Classes in org.apache.empire.db.expr.compare that implement DBPreparable

Modifier and Type	Class and Description
class	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.
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.
class	DBCompareExpr This class is a common base class for all SQL filter constraints classes
class	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.
class	DBCompareParenthesisExpr This class wraps an existing compare expression with parenthesis.
class	DBExistsExpr This class is used for building up the SQL-Command for the EXISTS syntax.

Uses of DBPreparable in org.apache.empire.db.expr.join

Classes in org.apache.empire.db.expr.join that implement DBPreparable

Modifier and Type	Class and Description
class	DBColumnJoinExpr
class	DBCompareJoinExpr This class is used for building a join expression of an SQL statement.
class	DBCrossJoinExpr This class is used for building a join expression of an SQL statement.
class	DBJoinExpr This class is used for building a join expression of an SQL statement.

Uses of DBPreparable in org.apache.empire.dbms.postgresql

Classes in org.apache.empire.dbms.postgresql that implement DBPreparable

Modifier and Type	Class and Description
class	PostgresAtAt PostgresAtAt create a Postgres @@ comparator
class	PostgresFuncExpr