com.bigdata.resources

Class TestFixedLengthPrefixShardSplits

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.resources.AbstractTestSegSplitter

com.bigdata.resources.TestFixedLengthPrefixShardSplits

All Implemented Interfaces:

junit.framework.Test

public class TestFixedLengthPrefixShardSplits
extends AbstractTestSegSplitter

Unit tests for splitting an index segment based on its size on the disk, the nominal size of an index partition, and an optional application level constraint on the choice of the separator keys. This approach presumes a compacting merge has been performed such that all history other than the buffered writes is on a single index segment. The buffered writes are not considered when choosing the #of splits to make and the separator keys for those splits. They are simply copied afterwards onto the new index partition which covers their key-range.

Version:

$Id$

Author:

Bryan Thompson

See Also:

src/architecture/SplitMath.xls

Nested Class Summary

Nested classes/interfaces inherited from class com.bigdata.resources.AbstractTestSegSplitter

AbstractTestSegSplitter.MockPartitionIdFactory, AbstractTestSegSplitter.RejectSplitsAfterKey

Nested classes/interfaces inherited from class junit.framework.TestCase2

TestCase2.MyProperties, TestCase2.RandomType

Field Summary

Fields inherited from class com.bigdata.resources.AbstractTestSegSplitter

acceptAllSplits, pidFactory, rejectAllSplits

Fields inherited from class junit.framework.TestCase2

_randomType, log

Constructor Summary

Constructors

Constructor and Description
TestFixedLengthPrefixShardSplits()
TestFixedLengthPrefixShardSplits(String name)

Method Summary

Methods

Modifier and Type	Method and Description
protected BTree	generateData(IJournal store, String name, int ntuples, LocalPartitionMetadata pmd) Register a BTree against the journal, generate some data in the specified key range, and commit the data.
protected BTree	generateSPOData(IJournal store, int ntuples, LocalPartitionMetadata pmd) Register a BTree against the journal, generate some data and commit the data (the data corresponds to a simple triple index schema but does not handle statement indices with variable length keys).
void	test_split_applicationConstraint_nbytePrefix() Unit test for the logic handling application constraints on the choice of the separator key, which can also change the #of splits which may be generated from a given input B+Tree.

Methods inherited from class com.bigdata.resources.AbstractTestSegSplitter

doBuild, getStore

Methods inherited from class junit.framework.TestCase2

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualsWithinUlps, assertSameArray, assertSameArray, assertSameBigDecimal, assertSameBigDecimal, assertSameBigInteger, assertSameBigInteger, assertSameIterator, assertSameIterator, assertSameIteratorAnyOrder, assertSameIteratorAnyOrder, assertSameValue, assertSameValue, assertZeroUlps, assertZeroUlps, fail, getInnerCause, getNormalInt, getProjectBuildPath, getProperties, getRandomObject, getRandomObject, getRandomOrder, getRandomString, getTestInputStream, getTestResource, getTestResource, getUlps, getUlps, isDEBUG, isDEBUG, isINFO, isINFO, isInnerCause, logProperties

Methods inherited from class junit.framework.TestCase

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

TestFixedLengthPrefixShardSplits

public TestFixedLengthPrefixShardSplits()

TestFixedLengthPrefixShardSplits

public TestFixedLengthPrefixShardSplits(String name)

Parameters:

name -

Method Detail

generateData

protected BTree generateData(IJournal store,
                 String name,
                 int ntuples,
                 LocalPartitionMetadata pmd)

Register a BTree against the journal, generate some data in the specified key range, and commit the data.

Note: this uses int values to generate the keys. If you specify the fromKey as anything other than an empty byte[] or the toKey as anything other than null then the key must be at least 4 bytes long and the 1st 4 bytes will be decoded as an integer.

Parameters:

store -

ntuples -

pmd -

generateSPOData

protected BTree generateSPOData(IJournal store,
                    int ntuples,
                    LocalPartitionMetadata pmd)

Register a BTree against the journal, generate some data and commit the data (the data corresponds to a simple triple index schema but does not handle statement indices with variable length keys).

Parameters:

store -

ntuples -

pmd -

splitHandler -

test_split_applicationConstraint_nbytePrefix

public void test_split_applicationConstraint_nbytePrefix()
                                                  throws Exception

Unit test for the logic handling application constraints on the choice of the separator key, which can also change the #of splits which may be generated from a given input B+Tree. Specifically, this test the FixedLengthPrefixSplits constraint.

Throws:

Exception