com.exasol.sql.dml.merge

Class MergeMethodDefinition

java.lang.Object

com.exasol.sql.AbstractFragment

com.exasol.sql.dml.merge.MergeMethodDefinition

All Implemented Interfaces:

Fragment

Direct Known Subclasses:

MergeDeleteClause, MergeUpdateClause

public abstract class MergeMethodDefinition
extends AbstractFragment

Abstract base class for merge method definitions like WHEN MATCHED THEN UPDATE.

Field Summary

Fields

Modifier and Type	Field and Description
protected WhereClause	where

Fields inherited from class com.exasol.sql.AbstractFragment

root

Constructor Summary

Constructors

Constructor and Description
MergeMethodDefinition(Fragment root) Create the abstract base for a merge method definition.

Method Summary

Modifier and Type	Method and Description
WhereClause	getWhere() Get the WHERE clause of the merge method definition.
boolean	hasWhere() Check if the WHERE clause exists.
Merge	where(BooleanExpression expression) Add a WHERE clause MERGE definition.

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

Field Detail

where

protected WhereClause where

Constructor Detail

MergeMethodDefinition

public MergeMethodDefinition(Fragment root)

Create the abstract base for a merge method definition.

Parameters:

root - root MERGE statement

Method Detail

where

public Merge where(BooleanExpression expression)

Add a WHERE clause MERGE definition.

Parameters:

expression - filter expression

Returns:

parent MERGE statement

getWhere

public WhereClause getWhere()

Get the WHERE clause of the merge method definition.

Returns:

WHERE clause

hasWhere

public boolean hasWhere()

Check if the WHERE clause exists.

Returns:

true if the WHERE clause exists