Package org.h2.expression.function.table

Class CSVReadFunction

java.lang.Object

org.h2.expression.function.table.TableFunction

org.h2.expression.function.table.CSVReadFunction

All Implemented Interfaces:

ExpressionWithVariableParameters, NamedExpression, HasSQL

public final class CSVReadFunction
extends TableFunction

A CSVREAD function.

Field Summary

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
CSVReadFunction()

Method Summary

Modifier and Type	Method	Description
java.lang.String	getName()	Get the name.
ResultInterface	getValue(SessionLocal session)	Get a result with.
private java.lang.String	getValue(SessionLocal session, int index)
private static java.lang.String	getValue(SessionLocal session, Expression[] args, int index)
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

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

addParameter, doneWithParameters, getSQL

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

Constructor Detail

CSVReadFunction

public CSVReadFunction()

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

getValue

private java.lang.String getValue(SessionLocal session,
                                  int index)

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

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

getValue

private static java.lang.String getValue(SessionLocal session,
                                         Expression[] args,
                                         int index)

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