com.exasol.sql.dml.merge

Class MergeInsertClause

java.lang.Object

com.exasol.sql.AbstractFragment

com.exasol.sql.dml.insert.AbstractInsertValueTable<MergeInsertClause>

com.exasol.sql.dml.merge.MergeInsertClause

All Implemented Interfaces:

MergeFragment, Fragment

public class MergeInsertClause
extends AbstractInsertValueTable<MergeInsertClause>
implements MergeFragment

Represents the MERGE strategy of inserting rows from the source that do not match any row in the destination.

Field Summary

Fields

Modifier and Type	Field and Description
protected WhereClause	where

Fields inherited from class com.exasol.sql.dml.insert.AbstractInsertValueTable

insertFields, insertValueTable

Fields inherited from class com.exasol.sql.AbstractFragment

root

Constructor Summary

Constructors

Constructor and Description
MergeInsertClause(Fragment root) Create a new instance of a MergeInsertClause.

Method Summary

Modifier and Type	Method and Description
void	accept(MergeVisitor visitor) Accept a visitor (e.g.
WhereClause	getWhere() Get the WHERE clause of the insert definition.
boolean	hasWhere() Check if the WHERE clause exists.
protected MergeInsertClause	self()
Merge	where(BooleanExpression expression) Add a WHERE clause insertion definition.

Methods inherited from class com.exasol.sql.dml.insert.AbstractInsertValueTable

createInsertValueInstanceIfItDoesNotExist, field, hasFields, hasValues, valuePlaceholder, valuePlaceholders, values, values, values, valueTable

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

Field Detail

where

protected WhereClause where

Constructor Detail

MergeInsertClause

public MergeInsertClause(Fragment root)

Create a new instance of a MergeInsertClause.

Parameters:

root - root SQL statement this THEN INSERT clause belongs to

Method Detail

self

protected MergeInsertClause self()

Specified by:

self in class AbstractInsertValueTable<MergeInsertClause>

where

public Merge where(BooleanExpression expression)

Add a WHERE clause insertion definition.

Parameters:

expression - filter expression

Returns:

parent MERGE statement

getWhere

public WhereClause getWhere()

Get the WHERE clause of the insert definition.

Returns:

WHERE clause

hasWhere

public boolean hasWhere()

Check if the WHERE clause exists.

Returns:

true if the WHERE clause exists

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