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java.lang.Objectorg.h2.test.TestBase
org.h2.test.unit.TestValueMemory
public class TestValueMemory
Tests the memory consumption of values. Values can estimate how much memory they occupy, and this tests if this estimation is correct.
Field Summary |
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Fields inherited from class org.h2.test.TestBase |
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BASE_TEST_DIR, config, start, TEMP_DIR, uniqueId |
Constructor Summary | |
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TestValueMemory()
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Method Summary | |
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void |
checkPowerOff()
Check if the simulated power failure occurred. |
void |
checkWritingAllowed()
Check if writing is allowed. |
java.lang.String |
getDatabasePath()
Get the database path. |
java.lang.String |
getLobCompressionAlgorithm(int type)
Get the compression algorithm used for large objects. |
java.sql.Connection |
getLobConnection()
Get a database connection to be used for LOB access. |
SmallLRUCache<java.lang.String,java.lang.String[]> |
getLobFileListCache()
Get the lob file list cache if it is used. |
LobStorage |
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,
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 java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public TestValueMemory()
Method Detail |
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public static void main(java.lang.String... a) throws java.lang.Exception
a
- ignored
java.lang.Exception
public void test() throws java.sql.SQLException
TestBase
test
in class TestBase
java.sql.SQLException
public void checkPowerOff()
DataHandler
checkPowerOff
in interface DataHandler
public void checkWritingAllowed()
DataHandler
checkWritingAllowed
in interface DataHandler
public java.lang.String getDatabasePath()
DataHandler
getDatabasePath
in interface DataHandler
public java.lang.String getLobCompressionAlgorithm(int type)
DataHandler
getLobCompressionAlgorithm
in interface DataHandler
type
- the data type (CLOB or BLOB)
public java.lang.Object getLobSyncObject()
DataHandler
getLobSyncObject
in interface DataHandler
public int getMaxLengthInplaceLob()
DataHandler
getMaxLengthInplaceLob
in interface DataHandler
public FileStore openFile(java.lang.String name, java.lang.String mode, boolean mustExist)
DataHandler
openFile
in interface DataHandler
name
- the file namemode
- the modemustExist
- whether the file must already exist
public SmallLRUCache<java.lang.String,java.lang.String[]> getLobFileListCache()
DataHandler
getLobFileListCache
in interface DataHandler
public TempFileDeleter getTempFileDeleter()
DataHandler
getTempFileDeleter
in interface DataHandler
public LobStorage getLobStorage()
DataHandler
getLobStorage
in interface DataHandler
public java.sql.Connection getLobConnection()
DataHandler
getLobConnection
in interface DataHandler
public int readLob(long lobId, long offset, byte[] buff, int off, int length)
DataHandler
readLob
in interface DataHandler
lobId
- the loboffset
- the offset within the lobbuff
- the target bufferoff
- the offset within the target bufferlength
- the number of bytes to read
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