com.fr.general.jsqlparser.util

类 AddAliasesVisitor

java.lang.Object

com.fr.general.jsqlparser.util.AddAliasesVisitor

所有已实现的接口:

SelectItemVisitor, SelectVisitor

public class AddAliasesVisitor
extends java.lang.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.

作者:

tw

构造器概要

构造器

构造器和说明
AddAliasesVisitor()

方法概要

方法

限定符和类型	方法和说明
protected java.lang.String	getNextAlias() Calculate next alias name to use.
void	setPrefix(java.lang.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)

从类继承的方法 java.lang.Object

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

构造器详细资料

AddAliasesVisitor

public AddAliasesVisitor()

方法详细资料

visit

public void visit(PlainSelect plainSelect)

指定者:

visit 在接口中 SelectVisitor

visit

public void visit(SetOperationList setOpList)

指定者:

visit 在接口中 SelectVisitor

visit

public void visit(AllTableColumns allTableColumns)

指定者:

visit 在接口中 SelectItemVisitor

visit

public void visit(SelectExpressionItem selectExpressionItem)

指定者:

visit 在接口中 SelectItemVisitor

getNextAlias

protected java.lang.String getNextAlias()

Calculate next alias name to use.

返回:

setPrefix

public void setPrefix(java.lang.String prefix)

Set alias prefix.

参数:

prefix -

visit

public void visit(WithItem withItem)

指定者:

visit 在接口中 SelectVisitor

visit

public void visit(AllColumns allColumns)

指定者:

visit 在接口中 SelectItemVisitor