org.h2.test.db

Class TestFunctions

java.lang.Object

org.h2.test.TestBase

org.h2.test.db.TestFunctions

All Implemented Interfaces:

AggregateFunction

public class TestFunctions
extends TestBase
implements AggregateFunction

Tests for user defined functions and aggregates.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TestFunctions.MedianString This median implementation keeps all objects in memory.
static class	TestFunctions.MedianStringType This median implementation keeps all objects in memory.

Nested classes/interfaces inherited from class org.h2.test.TestBase

TestBase.Child

Field Summary

Fields inherited from class org.h2.test.TestBase

BASE_TEST_DIR, config, start, uniqueId

Constructor Summary

Constructors

Constructor and Description
TestFunctions()

Method Summary

Modifier and Type	Method and Description
void	add(java.lang.Object value) This method is called once for each row.
static int	addRow(java.sql.Connection conn, int id, java.lang.String name) This method is called via reflection from the database.
static java.sql.Blob	blob(java.sql.Blob value) This method is called via reflection from the database.
static java.io.BufferedInputStream	blob2stream(java.sql.Blob value) This method is called via reflection from the database.
static java.sql.Clob	clob(java.sql.Clob value) This method is called via reflection from the database.
static long	currentTimestampOverride() This method is called via reflection from the database.
static java.lang.Object[]	dynamic(java.lang.Object[] args) This method is called via reflection from the database.
static java.lang.Object[]	getArray() This method is called via reflection from the database.
static int	getCount() This method is called via reflection from the database.
java.lang.Object	getResult() This method returns the computed aggregate value.
int	getType(int[] inputTypes) This method must return the SQL type of the method, given the SQL type of the input data.
void	init(java.sql.Connection conn) This method is called when the aggregate function is used.
static void	main(java.lang.String... a) Run just this test.
static double	mean() This method is called via reflection from the database.
static double	mean(double... values) This method is called via reflection from the database.
static double	mean2(java.sql.Connection conn, double... values) This method is called via reflection from the database.
static java.math.BigDecimal	noOp(java.math.BigDecimal dec) This method is called via reflection from the database.
static java.sql.ResultSet	nullResultSet(java.sql.Connection conn) This method is called via reflection from the database.
static java.lang.String	printMean(java.lang.String prefix, double... values) This method is called via reflection from the database.
static java.sql.ResultSet	resultSetWithNull(java.sql.Connection conn) This method is called via reflection from the database.
static java.lang.String	reverse(java.lang.String s) This method is called via reflection from the database.
static int	root(int value) This method is called via reflection from the database.
static java.sql.ResultSet	select(java.sql.Connection conn, java.lang.String sql) This method is called via reflection from the database.
static java.sql.ResultSet	selectMaxId(java.sql.Connection conn) This method is called via reflection from the database.
static java.sql.ResultSet	simpleFunctionTable(java.sql.Connection conn) This method is called via reflection from the database.
static java.sql.ResultSet	simpleResultSet(java.lang.Integer rowCount, int ip, boolean bp, float fp, double dp, long lp, byte byParam, short sp) Test method to create a simple result set.
static java.io.BufferedInputStream	stream2stream(java.io.InputStream value) This method is called via reflection from the database.
void	test() This method will be called by the test framework.
static void	testDefaultConn() This method is called via reflection from the database.
static Value	toChar(Value... args) This method is called via reflection from the database.
static java.sql.ResultSet	varArgsFunctionTable(int... values) This method is called via reflection from the database.
static java.util.UUID	xorUUID(java.util.UUID a, java.util.UUID b) This method is called via reflection from the database.

Methods inherited from class org.h2.test.TestBase

assertContains, assertEqualDatabases, assertEqualReaders, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualStreams, assertFalse, assertFalse, assertKnownException, assertKnownException, assertNull, assertResult, assertResultRowCount, assertResultSetMeta, assertResultSetOrdered, assertSingleValue, assertSmaller, assertStartsWith, assertThrows, assertThrows, assertThrows, assertThrows, assertTrue, assertTrue, buildChild, crash, createCaller, createClassProxy, createFailingStream, deleteDb, deleteDb, eatMemory, execute, execute, fail, fail, freeMemory, getBaseDir, getClassPath, getConnection, getConnection, getFilePassword, getMemoryUsed, getMemoryUsedBytes, getPassword, getPassword, getSize, getTestDir, getTestName, getURL, getUser, init, init, logError, logErrorMessage, println, printTime, printTimeMemory, readString, runTest, startServerIfRequired, throwException, trace, trace, traceMemory

Methods inherited from class java.lang.Object

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

Constructor Detail

TestFunctions

public TestFunctions()

Method Detail

main

public static void main(java.lang.String... a)
                 throws java.lang.Exception

Run just this test.

Parameters:

a - ignored

Throws:

java.lang.Exception

test

public void test()
          throws java.lang.Exception

Description copied from class: TestBase

This method will be called by the test framework.

Specified by:

test in class TestBase

Throws:

java.lang.Exception - if an exception in the test occurs

simpleFunctionTable

public static java.sql.ResultSet simpleFunctionTable(java.sql.Connection conn)

This method is called via reflection from the database.

Parameters:

conn - the connection

Returns:

a result set

varArgsFunctionTable

public static java.sql.ResultSet varArgsFunctionTable(int... values)
                                               throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

values - the value array

Returns:

a result set

Throws:

java.sql.SQLException

toChar

public static Value toChar(Value... args)

This method is called via reflection from the database.

Parameters:

args - the argument list

Returns:

the value

testDefaultConn

public static void testDefaultConn()
                            throws java.sql.SQLException

This method is called via reflection from the database.

Throws:

java.sql.SQLException

blob2stream

public static java.io.BufferedInputStream blob2stream(java.sql.Blob value)
                                               throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

value - the blob

Returns:

the input stream

Throws:

java.sql.SQLException

blob

public static java.sql.Blob blob(java.sql.Blob value)

This method is called via reflection from the database.

Parameters:

value - the blob

Returns:

the blob

clob

public static java.sql.Clob clob(java.sql.Clob value)

This method is called via reflection from the database.

Parameters:

value - the blob

Returns:

the blob

stream2stream

public static java.io.BufferedInputStream stream2stream(java.io.InputStream value)

This method is called via reflection from the database.

Parameters:

value - the input stream

Returns:

the buffered input stream

addRow

public static int addRow(java.sql.Connection conn,
                         int id,
                         java.lang.String name)
                  throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

conn - the connection

id - the test id

name - the text

Returns:

the count

Throws:

java.sql.SQLException

select

public static java.sql.ResultSet select(java.sql.Connection conn,
                                        java.lang.String sql)
                                 throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

conn - the connection

sql - the SQL statement

Returns:

the result set

Throws:

java.sql.SQLException

selectMaxId

public static java.sql.ResultSet selectMaxId(java.sql.Connection conn)
                                      throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

conn - the connection

Returns:

the result set

Throws:

java.sql.SQLException

getArray

public static java.lang.Object[] getArray()

This method is called via reflection from the database.

Returns:

the test array

resultSetWithNull

public static java.sql.ResultSet resultSetWithNull(java.sql.Connection conn)
                                            throws java.sql.SQLException

This method is called via reflection from the database.

Parameters:

conn - the connection

Returns:

the result set

Throws:

java.sql.SQLException

nullResultSet

public static java.sql.ResultSet nullResultSet(java.sql.Connection conn)

This method is called via reflection from the database.

Parameters:

conn - the connection

Returns:

the result set

simpleResultSet

public static java.sql.ResultSet simpleResultSet(java.lang.Integer rowCount,
                                                 int ip,
                                                 boolean bp,
                                                 float fp,
                                                 double dp,
                                                 long lp,
                                                 byte byParam,
                                                 short sp)

Test method to create a simple result set.

Parameters:

rowCount - the number of rows

ip - an int

bp - a boolean

fp - a float

dp - a double

lp - a long

byParam - a byte

sp - a short

Returns:

a result set

root

public static int root(int value)

This method is called via reflection from the database.

Parameters:

value - the value

Returns:

the square root

mean

public static double mean()

This method is called via reflection from the database.

Returns:

1

noOp

public static java.math.BigDecimal noOp(java.math.BigDecimal dec)

This method is called via reflection from the database.

Parameters:

dec - the value

Returns:

the value

getCount

public static int getCount()

This method is called via reflection from the database.

Returns:

the count

reverse

public static java.lang.String reverse(java.lang.String s)

This method is called via reflection from the database.

Parameters:

s - the string

Returns:

the string, reversed

mean

public static double mean(double... values)

This method is called via reflection from the database.

Parameters:

values - the values

Returns:

the mean value

mean2

public static double mean2(java.sql.Connection conn,
                           double... values)

This method is called via reflection from the database.

Parameters:

conn - the connection

values - the values

Returns:

the mean value

printMean

public static java.lang.String printMean(java.lang.String prefix,
                                         double... values)

This method is called via reflection from the database.

Parameters:

prefix - the print prefix

values - the values

Returns:

the text

xorUUID

public static java.util.UUID xorUUID(java.util.UUID a,
                                     java.util.UUID b)

This method is called via reflection from the database.

Parameters:

a - the first UUID

b - the second UUID

Returns:

a xor b

dynamic

public static java.lang.Object[] dynamic(java.lang.Object[] args)

This method is called via reflection from the database.

Parameters:

args - the argument list

Returns:

an array of one element

currentTimestampOverride

public static long currentTimestampOverride()

This method is called via reflection from the database.

Returns:

a fixed number

add

public void add(java.lang.Object value)

Description copied from interface: AggregateFunction

This method is called once for each row. If the aggregate function is called with multiple parameters, those are passed as array.

Specified by:

add in interface AggregateFunction

Parameters:

value - the value(s) for this row

getResult

public java.lang.Object getResult()

Description copied from interface: AggregateFunction

This method returns the computed aggregate value.

Specified by:

getResult in interface AggregateFunction

Returns:

the aggregated value

getType

public int getType(int[] inputTypes)

Description copied from interface: AggregateFunction

This method must return the SQL type of the method, given the SQL type of the input data. The method should check here if the number of parameters passed is correct, and if not it should throw an exception.

Specified by:

getType in interface AggregateFunction

Parameters:

inputTypes - the SQL type of the parameters, Types

Returns:

the SQL type of the result

init

public void init(java.sql.Connection conn)

Description copied from interface: AggregateFunction

This method is called when the aggregate function is used. A new object is created for each invocation.

Specified by:

init in interface AggregateFunction

Parameters:

conn - a connection to the database