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提交 d95318e6 authored 作者: Thomas Mueller's avatar Thomas Mueller
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MVStore: statement processing

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h2/src/main/org/h2/mvstore/db/TransactionStore2.java 0 → 100644
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/*
* Copyright 2004-2013 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.mvstore.db;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.h2.mvstore.Cursor;
import org.h2.mvstore.DataUtils;
import org.h2.mvstore.MVMap;
import org.h2.mvstore.MVMapConcurrent;
import org.h2.mvstore.MVStore;
import org.h2.mvstore.MVMap.Builder;
import org.h2.mvstore.type.DataType;
import org.h2.mvstore.type.ObjectDataType;
import org.h2.util.New;
/**
* A store that supports concurrent transactions.
*/
public class TransactionStore2 {
private static final String LAST_TRANSACTION_ID = "lastTransactionId";
/**
* The store.
*/
final MVStore store;
/**
* The persisted map of open transaction.
* Key: transactionId, value: [ status, name ].
*/
final MVMap<Long, Object[]> openTransactions;
/**
* The map of open transaction objects.
* Key: transactionId, value: transaction object.
*/
final HashMap<Long, Transaction> openTransactionMap = New.hashMap();
/**
* The undo log.
* Key: [ transactionId, logId ], value: [ baseVersion, mapId, key, oldValue ].
*/
final MVMap<long[], Object[]> undoLog;
/**
* The lock timeout in milliseconds. 0 means timeout immediately.
*/
long lockTimeout;
/**
* The transaction settings. "lastTransaction" the last transaction id.
*/
private final MVMap<String, String> settings;
private long lastTransactionIdStored;
private long lastTransactionId;
/**
* Create a new transaction store.
*
* @param store the store
*/
public TransactionStore2(MVStore store) {
this(store, new ObjectDataType());
}
/**
* Create a new transaction store.
*
* @param store the store
* @param keyType the data type for map keys
*/
public TransactionStore2(MVStore store, DataType keyType) {
this.store = store;
settings = store.openMap("settings");
openTransactions = store.openMap("openTransactions",
new MVMapConcurrent.Builder<Long, Object[]>());
// commit could be faster if we have one undo log per transaction,
// or a range delete operation for maps
ArrayType valueType = new ArrayType(new DataType[]{
new ObjectDataType(), new ObjectDataType(), keyType
});
MVMapConcurrent.Builder<long[], Object[]> builder =
new MVMapConcurrent.Builder<long[], Object[]>().
valueType(valueType);
// TODO escape other map names, to avoid conflicts
undoLog = store.openMap("undoLog", builder);
init();
}
private void init() {
String s = settings.get(LAST_TRANSACTION_ID);
if (s != null) {
lastTransactionId = Long.parseLong(s);
lastTransactionIdStored = lastTransactionId;
}
Long lastKey = openTransactions.lastKey();
if (lastKey != null && lastKey.longValue() > lastTransactionId) {
throw DataUtils.newIllegalStateException("Last transaction not stored");
}
Cursor<Long> cursor = openTransactions.keyIterator(null);
while (cursor.hasNext()) {
long id = cursor.next();
Object[] data = openTransactions.get(id);
int status = (Integer) data[0];
String name = (String) data[1];
long[] next = { id + 1, -1 };
long[] last = undoLog.floorKey(next);
if (last == null) {
// no entry
} else if (last[0] == id) {
Transaction t = new Transaction(this, id, status, name, last[1]);
openTransactionMap.put(id, t);
}
}
}
/**
* Get the list of currently open transactions that have pending writes.
*
* @return the list of transactions
*/
public synchronized List<Transaction> getOpenTransactions() {
ArrayList<Transaction> list = New.arrayList();
list.addAll(openTransactionMap.values());
return list;
}
/**
* Close the transaction store.
*/
public synchronized void close() {
// to avoid losing transaction ids
settings.put(LAST_TRANSACTION_ID, "" + lastTransactionId);
store.commit();
}
/**
* Begin a new transaction.
*
* @return the transaction
*/
public synchronized Transaction begin() {
store.incrementVersion();
long transactionId = lastTransactionId++;
int status = Transaction.STATUS_OPEN;
return new Transaction(this, transactionId, status, null, 0);
}
private void storeTransaction(Transaction t) {
long transactionId = t.getId();
if (openTransactions.containsKey(transactionId)) {
return;
}
Object[] v = { t.getStatus(), null };
openTransactions.put(transactionId, v);
openTransactionMap.put(transactionId, t);
if (lastTransactionId > lastTransactionIdStored) {
lastTransactionIdStored += 32;
settings.put(LAST_TRANSACTION_ID, "" + lastTransactionIdStored);
}
}
/**
* Prepare a transaction.
*
* @param transactionId the transaction id
*/
void prepare(Transaction t) {
storeTransaction(t);
Object[] old = openTransactions.get(t.getId());
Object[] v = { Transaction.STATUS_PREPARED, old[1] };
openTransactions.put(t.getId(), v);
store.commit();
}
/**
* Log an entry.
*
* @param t the transaction
* @param logId the log id
* @param opType the operation type
* @param mapId the map id
* @param key the key
* @param oldValue the old value
*/
void log(Transaction t, long logId, int opType, int mapId,
Object key, Object oldValue) {
storeTransaction(t);
long[] undoKey = { t.getId(), logId };
Object[] log = new Object[] { opType, mapId, key, oldValue };
undoLog.put(undoKey, log);
}
/**
* Set the name of a transaction.
*
* @param t the transaction
* @param name the new name
*/
void setTransactionName(Transaction t, String name) {
storeTransaction(t);
Object[] old = openTransactions.get(t.getId());
Object[] v = { old[0], name };
openTransactions.put(t.getId(), v);
store.commit();
}
/**
* Commit a transaction.
*
* @param t the transaction
* @param maxLogId the last log id
*/
void commit(Transaction t, long maxLogId) {
store.incrementVersion();
for (long logId = 0; logId < maxLogId; logId++) {
long[] undoKey = new long[] {
t.getId(), logId };
Object[] op = undoLog.get(undoKey);
int opType = (Integer) op[0];
if (opType == Transaction.OP_REMOVE) {
int mapId = (Integer) op[1];
Map<String, String> meta = store.getMetaMap();
String m = meta.get("map." + mapId);
String mapName = DataUtils.parseMap(m).get("name");
MVMap<Object, Object[]> map = store.openMap(mapName);
Object key = op[2];
Object[] value = map.get(key);
// possibly the entry was added later on
// so we have to check
if (value[2] == null) {
// remove the value
map.remove(key);
}
}
undoLog.remove(undoKey);
}
openTransactions.remove(t.getId());
openTransactionMap.remove(t.getId());
store.commit();
long oldestVersion = store.getCurrentVersion();
for (Transaction u : openTransactionMap.values()) {
long v = u.startVersion;
if (v < oldestVersion) {
oldestVersion = v;
}
}
store.setRetainVersion(oldestVersion);
}
/**
* Roll a transaction back.
*
* @param t the transaction
* @param maxLogId the last log id
*/
void rollback(Transaction t, long maxLogId) {
rollbackTo(t, maxLogId, 0);
openTransactions.remove(t.getId());
openTransactionMap.remove(t.getId());
store.commit();
}
/**
* Rollback to an old savepoint.
*
* @param t the transaction
* @param maxLogId the last log id
* @param toLogId the log id to roll back to
*/
void rollbackTo(Transaction t, long maxLogId, long toLogId) {
store.incrementVersion();
for (long logId = maxLogId - 1; logId >= toLogId; logId--) {
Object[] op = undoLog.get(new long[] {
t.getId(), logId });
int mapId = ((Integer) op[1]).intValue();
Map<String, String> meta = store.getMetaMap();
String m = meta.get("map." + mapId);
String mapName = DataUtils.parseMap(m).get("name");
MVMap<Object, Object[]> map = store.openMap(mapName);
Object key = op[2];
Object[] oldValue = (Object[]) op[3];
Object[] value = map.get(key);
if (value != null) {
if (oldValue == null) {
// this transaction added the value
map.remove(key);
} else {
// this transaction updated the value
map.put(key, oldValue);
}
}
undoLog.remove(logId);
}
store.commit();
}
/**
* A transaction.
*/
public static class Transaction {
/**
* The status of an open transaction.
*/
public static final int STATUS_OPEN = 0;
/**
* The status of a prepared transaction.
*/
public static final int STATUS_PREPARED = 1;
/**
* The status of a closed transaction (committed or rolled back).
*/
public static final int STATUS_CLOSED = 2;
/**
* The operation type for changes in a map.
*/
static final int OP_REMOVE = 0, OP_ADD = 1, OP_SET = 2;
/**
* The transaction store.
*/
final TransactionStore2 store;
/**
* The version of the store at the time the transaction was started.
*/
final long startVersion;
/**
* The transaction id.
*/
final long transactionId;
private int status;
private String name;
private long logId;
Transaction(TransactionStore2 store, long transactionId, int status, String name, long logId) {
this.store = store;
this.startVersion = store.store.getCurrentVersion();
this.transactionId = transactionId;
this.status = status;
this.name = name;
this.logId = logId;
}
/**
* Get the transaction id.
*
* @return the transaction id
*/
public long getId() {
return transactionId;
}
/**
* Get the transaction status.
*
* @return the status
*/
public int getStatus() {
return status;
}
/**
* Set the name of the transaction.
*
* @param name the new name
*/
public void setName(String name) {
checkOpen();
store.setTransactionName(this, name);
this.name = name;
}
/**
* Get the name of the transaction.
*
* @return name the name
*/
public String getName() {
return name;
}
/**
* Create a new savepoint.
*
* @return the savepoint id
*/
public long setSavepoint() {
checkOpen();
store.store.incrementVersion();
return logId;
}
/**
* Add a log entry.
*
* @param opType the operation type
* @param mapId the map id
* @param key the key
* @param oldValue the old value
*/
void log(int opType, int mapId, Object key, Object oldValue) {
store.log(this, logId++, opType, mapId, key, oldValue);
}
/**
* Open a data map where reads are always up to date.
*
* @param <K> the key type
* @param <V> the value type
* @param name the name of the map
* @return the transaction map
*/
public <K, V> TransactionMap<K, V> openMap(String name) {
return openMap(name, -1);
}
/**
* Open a data map where reads are based on the specified version / savepoint.
*
* @param <K> the key type
* @param <V> the value type
* @param name the name of the map
* @param readVersion the version used for reading
* @return the transaction map
*/
public <K, V> TransactionMap<K, V> openMap(String name, long readVersion) {
checkOpen();
return new TransactionMap<K, V>(this, name, new ObjectDataType(),
new ObjectDataType(), readVersion);
}
/**
* Open the map to store the data.
*
* @param <K> the key type
* @param <V> the value type
* @param name the name of the map
* @param readVersion the version used for reading
* @param builder the builder
* @return the transaction map
*/
public <K, V> TransactionMap<K, V> openMap(String name, long readVersion, Builder<K, V> builder) {
checkOpen();
DataType keyType = builder.getKeyType();
if (keyType == null) {
keyType = new ObjectDataType();
}
DataType valueType = builder.getValueType();
if (valueType == null) {
valueType = new ObjectDataType();
}
return new TransactionMap<K, V>(this, name, keyType, valueType, readVersion);
}
/**
* Roll back to the given savepoint. This is only allowed if the
* transaction is open.
*
* @param savepointId the savepoint id
*/
public void rollbackToSavepoint(long savepointId) {
checkOpen();
store.rollbackTo(this, this.logId, savepointId);
this.logId = savepointId;
}
/**
* Prepare the transaction. Afterwards, the transaction can only be
* committed or rolled back.
*/
public void prepare() {
checkOpen();
store.prepare(this);
status = STATUS_PREPARED;
}
/**
* Commit the transaction. Afterwards, this transaction is closed.
*/
public void commit() {
if (status != STATUS_CLOSED) {
store.commit(this, logId);
status = STATUS_CLOSED;
}
}
/**
* Roll the transaction back. Afterwards, this transaction is closed.
*/
public void rollback() {
if (status != STATUS_CLOSED) {
store.rollback(this, logId);
status = STATUS_CLOSED;
}
}
/**
* Check whether this transaction is still open.
*/
void checkOpen() {
if (status != STATUS_OPEN) {
throw DataUtils.newIllegalStateException("Transaction is closed");
}
}
public long getCurrentVersion() {
return store.store.getCurrentVersion();
}
}
/**
* A map that supports transactions.
*
* @param <K> the key type
* @param <V> the value type
*/
public static class TransactionMap<K, V> {
private Transaction transaction;
private final int mapId;
/**
* The map used for writing (the latest version).
* <p>
* Key: key the key of the data.
* Value: { transactionId, oldVersion, value }
*/
private final MVMap<K, Object[]> mapWrite;
/**
* The map used for reading (possibly an older version). Reading is done
* on an older version so that changes are not immediately visible, to
* support statement processing (for example
* "update test set id = id + 1").
* <p>
* Key: key the key of the data.
* Value: { transactionId, oldVersion, value }
*/
private final MVMap<K, Object[]> mapRead;
TransactionMap(Transaction transaction, String name, DataType keyType,
DataType valueType, long readVersion) {
this.transaction = transaction;
ArrayType arrayType = new ArrayType(new DataType[] {
new ObjectDataType(), new ObjectDataType(), valueType
});
MVMap.Builder<K, Object[]> builder = new MVMap.Builder<K, Object[]>()
.keyType(keyType).valueType(arrayType);
mapWrite = transaction.store.store.openMap(name, builder);
mapId = mapWrite.getId();
if (readVersion >= 0) {
mapRead = mapWrite.openVersion(readVersion);
} else {
mapRead = mapWrite;
}
}
/**
* Get the size of the map as seen by this transaction.
*
* @return the size
*/
public long getSize() {
// TODO this method is very slow
long size = 0;
Cursor<K> cursor = mapRead.keyIterator(null);
while (cursor.hasNext()) {
K key = cursor.next();
if (get(key) != null) {
size++;
}
}
return size;
}
private void checkOpen() {
transaction.checkOpen();
}
/**
* Remove an entry.
* <p>
* If the row is locked, this method will retry until the row could be
* updated or until a lock timeout.
*
* @param key the key
* @throws IllegalStateException if a lock timeout occurs
*/
public V remove(K key) {
return set(key, null);
}
/**
* Update the value for the given key.
* <p>
* If the row is locked, this method will retry until the row could be
* updated or until a lock timeout.
*
* @param key the key
* @param value the new value (not null)
* @throws IllegalStateException if a lock timeout occurs
*/
public V put(K key, V value) {
DataUtils.checkArgument(value != null, "The value may not be null");
return set(key, value);
}
private V set(K key, V value) {
checkOpen();
long start = 0;
while (true) {
V old = get(key);
boolean ok = trySet(key, value, false);
if (ok) {
return old;
}
// an uncommitted transaction:
// wait until it is committed, or until the lock timeout
long timeout = transaction.store.lockTimeout;
if (timeout == 0) {
throw DataUtils.newIllegalStateException("Lock timeout");
}
if (start == 0) {
start = System.currentTimeMillis();
} else {
long t = System.currentTimeMillis() - start;
if (t > timeout) {
throw DataUtils.newIllegalStateException("Lock timeout");
}
// TODO use wait/notify instead
try {
Thread.sleep(1);
} catch (InterruptedException e) {
// ignore
}
}
}
}
/**
* Try to remove the value for the given key.
* <p>
* This will fail if the row is locked by another transaction (that
* means, if another open transaction changed the row).
*
* @param key the key
* @return whether the entry could be removed
*/
public boolean tryRemove(K key) {
return trySet(key, null, false);
}
/**
* Try to update the value for the given key.
* <p>
* This will fail if the row is locked by another transaction (that
* means, if another open transaction changed the row).
*
* @param key the key
* @param value the new value
* @return whether the entry could be updated
*/
public boolean tryPut(K key, V value) {
DataUtils.checkArgument(value != null, "The value may not be null");
return trySet(key, value, false);
}
/**
* Try to set or remove the value. When updating only unchanged entries,
* then the value is only changed if it was not changed after opening
* the map.
*
* @param key the key
* @param value the new value (null to remove the value)
* @param onlyIfUnchanged only set the value if it was not changed (by
* this or another transaction) since the map was opened
* @return true if the value was set
*/
public boolean trySet(K key, V value, boolean onlyIfUnchanged) {
MVMap<K, Object[]> m = mapRead;
Object[] current = mapWrite.get(key);
if (onlyIfUnchanged) {
Object[] old = m.get(key);
if (!mapWrite.areValuesEqual(old, current)) {
long tx = (Long) current[0];
if (tx == transaction.transactionId) {
if (value == null) {
// ignore removing an entry
// if it was added or changed
// in the same statement
return true;
} else if (current[2] == null) {
// add an entry that was removed
// in the same statement
} else {
return false;
}
} else {
return false;
}
}
}
long oldVersion = transaction.store.store.getCurrentVersion() - 1;
int opType;
if (current == null || current[2] == null) {
if (value == null) {
// remove a removed value
opType = Transaction.OP_SET;
} else {
opType = Transaction.OP_ADD;
}
} else {
if (value == null) {
opType = Transaction.OP_REMOVE;
} else {
opType = Transaction.OP_SET;
}
}
Object[] newValue = { transaction.transactionId, oldVersion, value };
if (current == null) {
// a new value
newValue[1] = null;
Object[] old = mapWrite.putIfAbsent(key, newValue);
if (old == null) {
transaction.log(opType, mapId, key, current);
return true;
}
return false;
}
long tx = (Long) current[0];
if (tx == transaction.transactionId) {
// added or updated by this transaction
if (mapWrite.replace(key, current, newValue)) {
if (current[1] == null) {
transaction.log(opType, mapId, key, current);
} else {
long c = (Long) current[1];
if (c != oldVersion) {
transaction.log(opType, mapId, key, current);
}
}
return true;
}
// strange, somebody overwrite the value
// even thought the change was not committed
return false;
}
// added or updated by another transaction
boolean open = transaction.store.openTransactions.containsKey(tx);
if (!open) {
// the transaction is committed:
// overwrite the value
if (mapWrite.replace(key, current, newValue)) {
transaction.log(opType, mapId, key, current);
return true;
}
// somebody else was faster
return false;
}
// the transaction is not yet committed
return false;
}
/**
* Get the value for the given key at the time when this map was opened.
*
* @param key the key
* @return the value or null
*/
public V get(K key) {
return get(key, mapRead);
}
/**
* Get the most recent value for the given key.
*
* @param key the key
* @return the value or null
*/
public V getLatest(K key) {
return get(key, mapWrite);
}
/**
* Whether the map contains the key.
*
* @param key the key
* @return true if the map contains an entry for this key
*/
public boolean containsKey(K key) {
return get(key) != null;
}
/**
* Get the value for the given key.
*
* @param key the key
* @param m the map
* @return the value or null
*/
@SuppressWarnings("unchecked")
public V get(K key, MVMap<K, Object[]> m) {
checkOpen();
while (true) {
Object[] data = m.get(key);
long tx;
if (data == null) {
// doesn't exist or deleted by a committed transaction
return null;
}
tx = (Long) data[0];
if (tx == transaction.transactionId) {
// added by this transaction
return (V) data[2];
}
// added or updated by another transaction
boolean open = transaction.store.openTransactions.containsKey(tx);
if (!open) {
// it is committed
return (V) data[2];
}
tx = (Long) data[0];
// get the value before the uncommitted transaction
if (data[1] == null) {
// a new entry
return null;
}
long oldVersion = (Long) data[1];
m = mapWrite.openVersion(oldVersion);
}
}
/**
* Rename the map.
*
* @param newMapName the new map name
*/
public void renameMap(String newMapName) {
// TODO rename maps transactionally
mapWrite.renameMap(newMapName);
}
/**
* Check whether this map is closed.
*
* @return true if closed
*/
public boolean isClosed() {
return mapWrite.isClosed();
}
/**
* Remove the map.
*/
public void removeMap() {
// TODO remove in a transaction
mapWrite.removeMap();
}
/**
* Clear the map.
*/
public void clear() {
// TODO truncate transactionally
mapWrite.clear();
}
/**
* Get the first key.
*
* @return the first key, or null if empty
*/
public K firstKey() {
// TODO transactional firstKey
return mapRead.firstKey();
}
/**
* Get the last key.
*
* @return the last key, or null if empty
*/
public K lastKey() {
// TODO transactional lastKey
return mapRead.lastKey();
}
/**
* Iterate over all keys.
*
* @param from the first key to return
* @return the iterator
*/
public Iterator<K> keyIterator(K from) {
// TODO transactional keyIterator
return mapRead.keyIterator(from);
}
/**
* Get the smallest key that is larger or equal to this key.
*
* @param key the key (may not be null)
* @return the result
*/
public K ceilingKey(K key) {
// TODO transactional ceilingKey
return mapRead.ceilingKey(key);
}
/**
* Get the smallest key that is larger than the given key, or null if no
* such key exists.
*
* @param key the key (may not be null)
* @return the result
*/
public K higherKey(K key) {
// TODO transactional higherKey
return mapRead.higherKey(key);
}
/**
* Get the largest key that is smaller than the given key, or null if no
* such key exists.
*
* @param key the key (may not be null)
* @return the result
*/
public K lowerKey(K key) {
// TODO Auto-generated method stub
return mapRead.lowerKey(key);
}
public Transaction getTransaction() {
return transaction;
}
}
/**
* A data type that contains an array of objects with the specified data
* types.
*/
public static class ArrayType implements DataType {
private final int arrayLength;
private final DataType[] elementTypes;
ArrayType(DataType[] elementTypes) {
this.arrayLength = elementTypes.length;
this.elementTypes = elementTypes;
}
@Override
public int getMemory(Object obj) {
Object[] array = (Object[]) obj;
int size = 0;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
size += t.getMemory(array[i]);
}
return size;
}
@Override
public int compare(Object aObj, Object bObj) {
if (aObj == bObj) {
return 0;
}
Object[] a = (Object[]) aObj;
Object[] b = (Object[]) bObj;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
int comp = t.compare(a[i], b[i]);
if (comp != 0) {
return comp;
}
}
return 0;
}
@Override
public ByteBuffer write(ByteBuffer buff, Object obj) {
Object[] array = (Object[]) obj;
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
t.write(buff, array[i]);
}
return buff;
}
@Override
public Object read(ByteBuffer buff) {
Object[] array = new Object[arrayLength];
for (int i = 0; i < arrayLength; i++) {
DataType t = elementTypes[i];
array[i] = t.read(buff);
}
return array;
}
}
}
h2/src/test/org/h2/test/store/TestTransactionStore.java
浏览文件 @ d95318e6
......@@ -16,9 +16,9 @@ import java.util.List;
import java.util.Random;
import org.h2.mvstore.MVStore;
import org.h2.mvstore.db.TransactionStore;
import org.h2.mvstore.db.TransactionStore.Transaction;
import org.h2.mvstore.db.TransactionStore.TransactionMap;
import org.h2.mvstore.db.TransactionStore2;
import org.h2.mvstore.db.TransactionStore2.Transaction;
import org.h2.mvstore.db.TransactionStore2.TransactionMap;
import org.h2.store.fs.FileUtils;
import org.h2.test.TestBase;
import org.h2.util.New;
......@@ -39,7 +39,7 @@ public class TestTransactionStore extends TestBase {
public void test() throws Exception {
FileUtils.createDirectories(getBaseDir());
testMultiStatement();
testTwoPhaseCommit();
testSavepoint();
......@@ -60,7 +60,7 @@ public class TestTransactionStore extends TestBase {
*/
private void testMultiStatement() {
MVStore s = MVStore.open(null);
TransactionStore ts = new TransactionStore(s);
TransactionStore2 ts = new TransactionStore2(s);
Transaction tx;
TransactionMap<String, String> m;
long startUpdate;
......@@ -146,14 +146,14 @@ public class TestTransactionStore extends TestBase {
FileUtils.delete(fileName);
MVStore s;
TransactionStore ts;
TransactionStore2 ts;
Transaction tx;
Transaction txOld;
TransactionMap<String, String> m;
List<Transaction> list;
s = MVStore.open(fileName);
ts = new TransactionStore(s);
ts = new TransactionStore2(s);
tx = ts.begin();
assertEquals(null, tx.getName());
tx.setName("first transaction");
......@@ -171,7 +171,7 @@ public class TestTransactionStore extends TestBase {
s.close();
s = MVStore.open(fileName);
ts = new TransactionStore(s);
ts = new TransactionStore2(s);
tx = ts.begin();
assertEquals(1, tx.getId());
m = tx.openMap("test");
......@@ -189,7 +189,7 @@ public class TestTransactionStore extends TestBase {
s.close();
s = MVStore.open(fileName);
ts = new TransactionStore(s);
ts = new TransactionStore2(s);
tx = ts.begin();
m = tx.openMap("test");
// TransactionStore was not closed, so we lost some ids
......@@ -214,7 +214,7 @@ public class TestTransactionStore extends TestBase {
private void testSavepoint() throws Exception {
MVStore s = MVStore.open(null);
TransactionStore ts = new TransactionStore(s);
TransactionStore2 ts = new TransactionStore2(s);
Transaction tx;
TransactionMap<String, String> m;
......@@ -267,7 +267,7 @@ public class TestTransactionStore extends TestBase {
"create table test(id int primary key, name varchar(255))");
MVStore s = MVStore.open(null);
TransactionStore ts = new TransactionStore(s);
TransactionStore2 ts = new TransactionStore2(s);
for (int i = 0; i < connectionCount; i++) {
Statement stat = statements.get(i);
// 100 ms to avoid blocking (the test is single threaded)
......@@ -400,7 +400,7 @@ public class TestTransactionStore extends TestBase {
private void testConcurrentTransactionsReadCommitted() {
MVStore s = MVStore.open(null);
TransactionStore ts = new TransactionStore(s);
TransactionStore2 ts = new TransactionStore2(s);
Transaction tx1, tx2;
TransactionMap<String, String> m1, m2;
......@@ -472,7 +472,7 @@ public class TestTransactionStore extends TestBase {
private void testSingleConnection() {
MVStore s = MVStore.open(null);
TransactionStore ts = new TransactionStore(s);
TransactionStore2 ts = new TransactionStore2(s);
Transaction tx;
TransactionMap<String, String> m;
......
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