com.exasol.sql.dml.merge

Class MergeColumnUpdate

java.lang.Object

com.exasol.sql.AbstractFragment

com.exasol.sql.dml.merge.MergeColumnUpdate

All Implemented Interfaces:

MergeFragment, Fragment

public class MergeColumnUpdate
extends AbstractFragment
implements MergeFragment

Update of a value in a column caused by a MERGE command.

Field Summary

Fields inherited from class com.exasol.sql.AbstractFragment

root

Constructor Summary

Constructors

Constructor and Description
MergeColumnUpdate(Fragment root, String column, ValueExpression expression) Create a new instance of a MergeColumnUpdate.

Method Summary

Modifier and Type	Method and Description
void	accept(MergeVisitor visitor) Accept a visitor (e.g.
String	getColumn() Get the column to be updated.
ValueExpression	getExpression() Get the expression that serves as the value for the update.

Methods inherited from class com.exasol.sql.AbstractFragment

getRoot

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.sql.Fragment

getRoot

Constructor Detail

MergeColumnUpdate

public MergeColumnUpdate(Fragment root,
                         String column,
                         ValueExpression expression)

Create a new instance of a MergeColumnUpdate.

Parameters:

root - root SQL statement this column update belongs to

column - column to be updated

expression - expression that serves as the value for the update

Method Detail

getColumn

public String getColumn()

Get the column to be updated.

Returns:

column

getExpression

public ValueExpression getExpression()

Get the expression that serves as the value for the update.

Returns:

value expression

accept

public void accept(MergeVisitor visitor)

Description copied from interface: MergeFragment

Accept a visitor (e.g. a renderer or validator).

Specified by:

accept in interface MergeFragment

Parameters:

visitor - visitor to accept