org.h2.test.unit

Class TestValueMemory

java.lang.Object

org.h2.test.TestBase

org.h2.test.unit.TestValueMemory

All Implemented Interfaces:

DataHandler

public class TestValueMemory
extends TestBase
implements DataHandler

Tests the memory consumption of values. Values can estimate how much memory they occupy, and this tests if this estimation is correct.

Nested Class Summary

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
TestValueMemory()

Method Summary

Modifier and Type	Method and Description
void	checkPowerOff() Check if the simulated power failure occurred.
void	checkWritingAllowed() Check if writing is allowed.
CompareMode	getCompareMode() Return compare mode.
java.lang.String	getDatabasePath() Get the database path.
JavaObjectSerializer	getJavaObjectSerializer() Return the serializer to be used for java objects being stored in column of type OTHER.
java.lang.String	getLobCompressionAlgorithm(int type) Get the compression algorithm used for large objects.
SmallLRUCache<java.lang.String,java.lang.String[]>	getLobFileListCache() Get the lob file list cache if it is used.
LobStorageFrontend	getLobStorage() Get the lob storage mechanism to use.
java.lang.Object	getLobSyncObject() Get the synchronization object for lob operations.
int	getMaxLengthInplaceLob() Get the maximum length of a in-place large object
TempFileDeleter	getTempFileDeleter() Get the temp file deleter mechanism.
static void	main(java.lang.String... a) Run just this test.
FileStore	openFile(java.lang.String name, java.lang.String mode, boolean mustExist) Open a file at the given location.
int	readLob(long lobId, byte[] hmac, long offset, byte[] buff, int off, int length) Read from a lob.
void	test() This method will be called by the test framework.

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

TestValueMemory

public TestValueMemory()

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.sql.SQLException

Description copied from class: TestBase

This method will be called by the test framework.

Specified by:

test in class TestBase

Throws:

java.sql.SQLException

checkPowerOff

public void checkPowerOff()

Description copied from interface: DataHandler

Check if the simulated power failure occurred. This call will decrement the countdown.

Specified by:

checkPowerOff in interface DataHandler

checkWritingAllowed

public void checkWritingAllowed()

Description copied from interface: DataHandler

Check if writing is allowed.

Specified by:

checkWritingAllowed in interface DataHandler

getDatabasePath

public java.lang.String getDatabasePath()

Description copied from interface: DataHandler

Get the database path.

Specified by:

getDatabasePath in interface DataHandler

Returns:

the database path

getLobCompressionAlgorithm

public java.lang.String getLobCompressionAlgorithm(int type)

Description copied from interface: DataHandler

Get the compression algorithm used for large objects.

Specified by:

getLobCompressionAlgorithm in interface DataHandler

Parameters:

type - the data type (CLOB or BLOB)

Returns:

the compression algorithm, or null

getLobSyncObject

public java.lang.Object getLobSyncObject()

Description copied from interface: DataHandler

Get the synchronization object for lob operations.

Specified by:

getLobSyncObject in interface DataHandler

Returns:

the synchronization object

getMaxLengthInplaceLob

public int getMaxLengthInplaceLob()

Description copied from interface: DataHandler

Get the maximum length of a in-place large object

Specified by:

getMaxLengthInplaceLob in interface DataHandler

Returns:

the maximum size

openFile

public FileStore openFile(java.lang.String name,
                          java.lang.String mode,
                          boolean mustExist)

Description copied from interface: DataHandler

Open a file at the given location.

Specified by:

openFile in interface DataHandler

Parameters:

name - the file name

mode - the mode

mustExist - whether the file must already exist

Returns:

the file

getLobFileListCache

public SmallLRUCache<java.lang.String,java.lang.String[]> getLobFileListCache()

Description copied from interface: DataHandler

Get the lob file list cache if it is used.

Specified by:

getLobFileListCache in interface DataHandler

Returns:

the cache or null

getTempFileDeleter

public TempFileDeleter getTempFileDeleter()

Description copied from interface: DataHandler

Get the temp file deleter mechanism.

Specified by:

getTempFileDeleter in interface DataHandler

Returns:

the temp file deleter

getLobStorage

public LobStorageFrontend getLobStorage()

Description copied from interface: DataHandler

Get the lob storage mechanism to use.

Specified by:

getLobStorage in interface DataHandler

Returns:

the lob storage mechanism

readLob

public int readLob(long lobId,
                   byte[] hmac,
                   long offset,
                   byte[] buff,
                   int off,
                   int length)

Description copied from interface: DataHandler

Read from a lob.

Specified by:

readLob in interface DataHandler

Parameters:

lobId - the lob id

hmac - the message authentication code

offset - the offset within the lob

buff - the target buffer

off - the offset within the target buffer

length - the number of bytes to read

Returns:

the number of bytes read

getJavaObjectSerializer

public JavaObjectSerializer getJavaObjectSerializer()

Description copied from interface: DataHandler

Return the serializer to be used for java objects being stored in column of type OTHER.

Specified by:

getJavaObjectSerializer in interface DataHandler

Returns:

the serializer to be used for java objects being stored in column of type OTHER

getCompareMode

public CompareMode getCompareMode()

Description copied from interface: DataHandler

Return compare mode.

Specified by:

getCompareMode in interface DataHandler

Returns:

Compare mode.