net.sf.jsqlparser.util

Class AddAliasesVisitor

java.lang.Object

net.sf.jsqlparser.util.AddAliasesVisitor

All Implemented Interfaces:

SelectItemVisitor, SelectVisitor

public class AddAliasesVisitor
extends Object
implements SelectVisitor, SelectItemVisitor

Add aliases to every column and expression selected by a select - statement. Existing aliases are recognized and preserved. This class standard uses a prefix of A and a counter to generate new aliases (e.g. A1, A5, ...). This behaviour can be altered.

Author:

tw

Constructor Summary

Constructors

Constructor and Description
AddAliasesVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getNextAlias() Calculate next alias name to use.
void	setPrefix(String prefix) Set alias prefix.
void	visit(AllColumns allColumns)
void	visit(AllTableColumns allTableColumns)
void	visit(PlainSelect plainSelect)
void	visit(SelectExpressionItem selectExpressionItem)
void	visit(SetOperationList setOpList)
void	visit(WithItem withItem)

Methods inherited from class java.lang.Object

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

Constructor Detail

AddAliasesVisitor

public AddAliasesVisitor()

Method Detail

visit

public void visit(PlainSelect plainSelect)

Specified by:

visit in interface SelectVisitor

visit

public void visit(SetOperationList setOpList)

Specified by:

visit in interface SelectVisitor

visit

public void visit(AllTableColumns allTableColumns)

Specified by:

visit in interface SelectItemVisitor

visit

public void visit(SelectExpressionItem selectExpressionItem)

Specified by:

visit in interface SelectItemVisitor

getNextAlias

protected String getNextAlias()

Calculate next alias name to use.

Returns:

setPrefix

public void setPrefix(String prefix)

Set alias prefix.

Parameters:

prefix -

visit

public void visit(WithItem withItem)

Specified by:

visit in interface SelectVisitor

visit

public void visit(AllColumns allColumns)

Specified by:

visit in interface SelectItemVisitor