org.litebridgedb.db.spi.impl.function.AliasedDelegateColumnExpression

All Implemented Interfaces:: ColumnExpression, DelegateExpression, SelectExpression

public class AliasedDelegateColumnExpression extends DelegateColumnExpression

A nestable column expression with support for SQL aliasing.

This class extends NestableExpression and integrates the functionality of aliasing of results through a ColumnIdentifierGenerator.

The primary responsibility of this class is to provide SQL representations of nestable function expressions, either with or without an alias.

Field Details
- columnIdentifierGenerator
  
  protected final ColumnIdentifierGenerator columnIdentifierGenerator
Constructor Details
- AliasedDelegateColumnExpression
  
  public AliasedDelegateColumnExpression(ColumnExpression target, ColumnIdentifierGenerator columnIdentifierGenerator)
Method Details
- toSql
  
  public String toSql(Operation operation)
  
  Creates a SQL representation of the expression.
  This is usually used for expressions that do not require any aliases.
  
  Parameters:
  
  operation - the operation that is being executed
  
  Returns:
  
  the SQL representation of the expression
- toSqlWithAlias
  
  public String toSqlWithAlias(Operation operation)
  
  Creates a SQL representation of the expression, specifically including any required aliases.
  
  Parameters:
  
  operation - the operation that is being executed
  
  Returns:
  
  the SQL representation of the expression
- id
  
  protected String id(Column column, Operation operation)
- idWithAlias
  
  protected String idWithAlias(Column column, Operation operation)
- localId
  
  protected String localId(Operation operation)

Class AliasedDelegateColumnExpression

Field Summary