Package org.h2.expression.function.table

Class ArrayTableFunction

java.lang.Object

org.h2.expression.function.table.TableFunction

org.h2.expression.function.table.ArrayTableFunction

All Implemented Interfaces:

ExpressionWithVariableParameters, NamedExpression, HasSQL

public final class ArrayTableFunction
extends TableFunction

A table value function.

Field Summary

Fields

Modifier and Type	Field	Description
private Column[]	columns
private int	function
private static java.lang.String[]	NAMES
static int	TABLE	TABLE() (non-standard).
static int	TABLE_DISTINCT	TABLE_DISTINCT() (non-standard).
static int	UNNEST	UNNEST().

Fields inherited from class org.h2.expression.function.table.TableFunction

args

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
ArrayTableFunction(int function)

Method Summary

Modifier and Type	Method	Description
int	getFunctionType()
java.lang.String	getName()	Get the name.
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder, int sqlFlags)	Appends the SQL statement of this object to the specified builder.
private ResultInterface	getTable(SessionLocal session, boolean onlyColumnList)
ResultInterface	getValue(SessionLocal session)	Get a result with.
ResultInterface	getValueTemplate(SessionLocal session)	Get an empty result with the column names set.
boolean	isDeterministic()	Whether the function always returns the same result for the same parameters.
void	optimize(SessionLocal session)	Try to optimize this table function
void	setColumns(java.util.ArrayList<Column> columns)

Methods inherited from class org.h2.expression.function.table.TableFunction

addParameter, doneWithParameters

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

UNNEST

public static final int UNNEST

UNNEST().

See Also:

Constant Field Values

TABLE

public static final int TABLE

TABLE() (non-standard).

See Also:

Constant Field Values

TABLE_DISTINCT

public static final int TABLE_DISTINCT

TABLE_DISTINCT() (non-standard).

See Also:

Constant Field Values

columns

private Column[] columns

NAMES

private static final java.lang.String[] NAMES

function

private final int function

Constructor Detail

ArrayTableFunction

public ArrayTableFunction(int function)

Method Detail

getValue

public ResultInterface getValue(SessionLocal session)

Description copied from class: TableFunction

Get a result with.

Specified by:

getValue in class TableFunction

Parameters:

session - the session

Returns:

the result

optimize

public void optimize(SessionLocal session)

Description copied from class: TableFunction

Try to optimize this table function

Overrides:

optimize in class TableFunction

Parameters:

session - the session

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

Overrides:

getSQL in class TableFunction

Parameters:

builder - string builder

sqlFlags - formatting flags

Returns:

the specified string builder

getValueTemplate

public ResultInterface getValueTemplate(SessionLocal session)

Description copied from class: TableFunction

Get an empty result with the column names set.

Specified by:

getValueTemplate in class TableFunction

Parameters:

session - the session

Returns:

the empty result

setColumns

public void setColumns(java.util.ArrayList<Column> columns)

getTable

private ResultInterface getTable(SessionLocal session,
                                 boolean onlyColumnList)

getName

public java.lang.String getName()

Description copied from interface: NamedExpression

Get the name.

Returns:

the name in uppercase

isDeterministic

public boolean isDeterministic()

Description copied from class: TableFunction

Whether the function always returns the same result for the same parameters.

Specified by:

isDeterministic in class TableFunction

Returns:

true if it does

getFunctionType

public int getFunctionType()