Module litebridge.db.oracle

Package org.litebridge.db.oracle

Class OracleColumnIdentifierGenerator

java.lang.Object

org.litebridge.db.spi.impl.ColumnIdentifierGenerator

org.litebridge.db.oracle.OracleColumnIdentifierGenerator

public final class OracleColumnIdentifierGenerator
extends ColumnIdentifierGenerator

Oracle-specific implementation of ColumnIdentifierGenerator.

This class handles Oracle-specific column identifier generation rules, particularly dealing with JOIN USING clauses where Oracle prohibits table qualifiers for columns listed in the USING clause.

Constructor Summary

Constructors

Constructor	Description
OracleColumnIdentifierGenerator()

Method Summary

Modifier and Type	Method	Description
String	createAliasDeclaration(String alias)	Creates a SQL alias declaration.
String	createColumnRef(Column column, Operation operation, ClauseType clause)	Creates a SQL reference to a column.
String	createSelectColumn(Column column, Operation operation, ClauseType clause, boolean nested)	Creates a SQL identifier for a column to be used in a SELECT clause.

Methods inherited from class org.litebridge.db.spi.impl.ColumnIdentifierGenerator

quoteIdentifier

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

OracleColumnIdentifierGenerator

public OracleColumnIdentifierGenerator()

Method Details

createSelectColumn

public String createSelectColumn(Column column,
 Operation operation,
 ClauseType clause,
 boolean nested)

Description copied from class: ColumnIdentifierGenerator

Creates a SQL identifier for a column to be used in a SELECT clause.

Overrides:

createSelectColumn in class ColumnIdentifierGenerator

Parameters:

column - the column for which to create the identifier

operation - the current database operation

clause - the SQL clause where the identifier will be used

nested - whether the column is part of a nested expression

Returns:

the generated SQL column identifier

createColumnRef

public String createColumnRef(Column column,
 Operation operation,
 ClauseType clause)

Description copied from class: ColumnIdentifierGenerator

Creates a SQL reference to a column.

Overrides:

createColumnRef in class ColumnIdentifierGenerator

Parameters:

column - the column to reference

operation - the current database operation

clause - the SQL clause where the reference will be used

Returns:

the generated SQL column reference

createAliasDeclaration

public String createAliasDeclaration(String alias)

Description copied from class: ColumnIdentifierGenerator

Creates a SQL alias declaration.

Overrides:

createAliasDeclaration in class ColumnIdentifierGenerator

Parameters:

alias - the alias to declare

Returns:

the SQL alias declaration (e.g., "AS alias")