Package org.h2.command.dml

Class SetClauseList

java.lang.Object

org.h2.command.dml.SetClauseList

All Implemented Interfaces:

HasSQL

public final class SetClauseList
extends java.lang.Object
implements HasSQL

Set clause list.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SetClauseList.RowExpression
private static class	SetClauseList.SetMultiple
private static class	SetClauseList.SetSimple
private static class	SetClauseList.UpdateAction

Field Summary

Fields

Modifier and Type	Field	Description
private SetClauseList.UpdateAction[]	actions
private boolean	onUpdate
private Table	table

Fields inherited from interface org.h2.util.HasSQL

ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

Constructor Summary

Constructors

Constructor	Description
SetClauseList(Table table)

Method Summary

Modifier and Type	Method	Description
void	addMultiple(java.util.ArrayList<Column> columns, Expression expression)	Add multiple columns.
void	addSingle(Column column, Expression expression)	Add a single column.
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder, int sqlFlags)	Appends the SQL statement of this object to the specified builder.
(package private) boolean	isEverything(ExpressionVisitor visitor)	Check if this expression and all sub-expressions can fulfill a criteria.
(package private) void	mapAndOptimize(SessionLocal session, ColumnResolver resolver1, ColumnResolver resolver2)	Map the columns and optimize expressions.
(package private) boolean	prepareUpdate(Table table, SessionLocal session, ResultTarget deltaChangeCollector, DataChangeDeltaTable.ResultOption deltaChangeCollectionMode, LocalResult rows, Row oldRow, boolean updateToCurrentValuesReturnsZero)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2.util.HasSQL

getSQL, getTraceSQL

Field Detail

table

private final Table table

actions

private final SetClauseList.UpdateAction[] actions

onUpdate

private boolean onUpdate

Constructor Detail

SetClauseList

public SetClauseList(Table table)

Method Detail

addSingle

public void addSingle(Column column,
                      Expression expression)

Add a single column.

Parameters:

column - the column

expression - the expression

addMultiple

public void addMultiple(java.util.ArrayList<Column> columns,
                        Expression expression)

Add multiple columns.

Parameters:

columns - the columns

expression - the expression (e.g. an expression list)

prepareUpdate

boolean prepareUpdate(Table table,
                      SessionLocal session,
                      ResultTarget deltaChangeCollector,
                      DataChangeDeltaTable.ResultOption deltaChangeCollectionMode,
                      LocalResult rows,
                      Row oldRow,
                      boolean updateToCurrentValuesReturnsZero)

isEverything

boolean isEverything(ExpressionVisitor visitor)

Check if this expression and all sub-expressions can fulfill a criteria. If any part returns false, the result is false.

Parameters:

visitor - the visitor

Returns:

if the criteria can be fulfilled

mapAndOptimize

void mapAndOptimize(SessionLocal session,
                    ColumnResolver resolver1,
                    ColumnResolver resolver2)

Map the columns and optimize expressions.

Parameters:

session - the session

resolver1 - the first column resolver

resolver2 - the second column resolver, or null

getSQL

public java.lang.StringBuilder getSQL(java.lang.StringBuilder builder,
                                      int sqlFlags)

Description copied from interface: HasSQL

Appends the SQL statement of this object to the specified builder.

Specified by:

getSQL in interface HasSQL

Parameters:

builder - string builder

sqlFlags - formatting flags

Returns:

the specified string builder