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Administrator
h2database
Commits
03e1c25a
提交
03e1c25a
authored
3月 21, 2009
作者:
Thomas Mueller
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
new experimental page store
上级
d7e9f4a2
隐藏空白字符变更
内嵌
并排
正在显示
6 个修改的文件
包含
171 行增加
和
120 行删除
+171
-120
Database.java
h2/src/main/org/h2/engine/Database.java
+3
-26
PageBtreeIndex.java
h2/src/main/org/h2/index/PageBtreeIndex.java
+11
-11
PageScanIndex.java
h2/src/main/org/h2/index/PageScanIndex.java
+13
-8
PageLog.java
h2/src/main/org/h2/store/PageLog.java
+2
-3
PageStore.java
h2/src/main/org/h2/store/PageStore.java
+133
-63
TableData.java
h2/src/main/org/h2/table/TableData.java
+9
-9
没有找到文件。
h2/src/main/org/h2/engine/Database.java
浏览文件 @
03e1c25a
...
...
@@ -524,7 +524,9 @@ public class Database implements DataHandler {
// wait until pending changes are written
isReconnectNeeded
();
if
(
SysProperties
.
PAGE_STORE
)
{
starting
=
true
;
getPageStore
();
starting
=
false
;
}
if
(
FileUtils
.
exists
(
dataFileName
))
{
lobFilesInDirectories
&=
!
ValueLob
.
existsLobFile
(
getDatabasePath
());
...
...
@@ -582,7 +584,7 @@ public class Database implements DataHandler {
cols
.
add
(
new
Column
(
"SQL"
,
Value
.
STRING
));
int
headPos
=
0
;
if
(
pageStore
!=
null
)
{
headPos
=
pageStore
.
get
Meta
TableHeadPos
();
headPos
=
pageStore
.
get
System
TableHeadPos
();
}
meta
=
mainSchema
.
createTable
(
"SYS"
,
0
,
cols
,
persistent
,
false
,
headPos
);
tableMap
.
put
(
0
,
meta
);
...
...
@@ -2143,31 +2145,6 @@ public class Database implements DataHandler {
return
pageStore
;
}
/**
* Redo a change in a table.
*
* @param tableId the object id of the table
* @param row the row
* @param add true if the record is added, false if deleted
*/
public
void
redo
(
int
tableId
,
Row
row
,
boolean
add
)
throws
SQLException
{
TableData
table
=
(
TableData
)
tableMap
.
get
(
tableId
);
if
(
add
)
{
table
.
addRow
(
systemSession
,
row
);
}
else
{
table
.
removeRow
(
systemSession
,
row
);
}
if
(
tableId
==
0
)
{
MetaRecord
m
=
new
MetaRecord
(
row
);
if
(
add
)
{
objectIds
.
set
(
m
.
getId
());
m
.
execute
(
this
,
systemSession
,
eventListener
);
}
else
{
m
.
undo
(
this
,
systemSession
,
eventListener
);
}
}
}
/**
* Get the first user defined table.
*
...
...
h2/src/main/org/h2/index/PageBtreeIndex.java
浏览文件 @
03e1c25a
...
...
@@ -11,6 +11,7 @@ import org.h2.constant.ErrorCode;
import
org.h2.constant.SysProperties
;
import
org.h2.engine.Session
;
import
org.h2.message.Message
;
import
org.h2.message.TraceSystem
;
import
org.h2.result.Row
;
import
org.h2.result.SearchRow
;
import
org.h2.store.DataPage
;
...
...
@@ -36,6 +37,7 @@ public class PageBtreeIndex extends BaseIndex {
public
PageBtreeIndex
(
TableData
table
,
int
id
,
String
indexName
,
IndexColumn
[]
columns
,
IndexType
indexType
,
int
headPos
)
throws
SQLException
{
initBaseIndex
(
table
,
id
,
indexName
,
columns
,
indexType
);
int
test
;
// trace.setLevel(TraceSystem.DEBUG);
if
(
database
.
isMultiVersion
())
{
int
todoMvcc
;
...
...
@@ -49,22 +51,20 @@ public class PageBtreeIndex extends BaseIndex {
if
(
headPos
==
Index
.
EMPTY_HEAD
)
{
// new index
needRebuild
=
true
;
headPos
=
store
.
allocatePage
();
this
.
headPos
=
headPos
=
store
.
allocatePage
();
PageBtreeLeaf
root
=
new
PageBtreeLeaf
(
this
,
headPos
,
Page
.
ROOT
,
store
.
createDataPage
());
store
.
updateRecord
(
root
,
true
,
root
.
data
);
int
test
;
// } else if (store.isNew()) {
// // the system table for a new database
// PageBtreeLeaf root = new PageBtreeLeaf(this,
// headPos, Page.ROOT, store.createDataPage());
// store.updateRecord(root, true, root.data);
store
.
addMeta
(
this
);
}
else
{
rowCount
=
getPage
(
headPos
).
getRowCount
();
this
.
headPos
=
headPos
;
PageBtree
root
=
getPage
(
headPos
);
rowCount
=
root
.
getRowCount
();
// could have been created before, but never committed
store
.
updateRecord
(
root
,
false
,
null
);
int
reuseKeysIfManyDeleted
;
}
this
.
headPos
=
headPos
;
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"open
"
+
rowCount
);
trace
.
debug
(
"open
ed "
+
getName
()
+
" rows:"
+
rowCount
);
}
}
...
...
@@ -211,7 +211,7 @@ public class PageBtreeIndex extends BaseIndex {
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"remove"
);
}
int
todo
;
store
.
removeMeta
(
this
)
;
}
public
void
truncate
(
Session
session
)
throws
SQLException
{
...
...
h2/src/main/org/h2/index/PageScanIndex.java
浏览文件 @
03e1c25a
...
...
@@ -12,6 +12,7 @@ import org.h2.constant.ErrorCode;
import
org.h2.engine.Constants
;
import
org.h2.engine.Session
;
import
org.h2.message.Message
;
import
org.h2.message.TraceSystem
;
import
org.h2.result.Row
;
import
org.h2.result.SearchRow
;
import
org.h2.store.DataPage
;
...
...
@@ -32,25 +33,27 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
private
PageStore
store
;
private
TableData
tableData
;
private
int
headPos
;
private
final
int
headPos
;
private
int
lastKey
;
private
long
rowCount
;
public
PageScanIndex
(
TableData
table
,
int
id
,
IndexColumn
[]
columns
,
IndexType
indexType
,
int
headPos
)
throws
SQLException
{
initBaseIndex
(
table
,
id
,
table
.
getName
()
+
"_TABLE_SCAN"
,
columns
,
indexType
);
int
test
;
// trace.setLevel(TraceSystem.DEBUG);
if
(
database
.
isMultiVersion
())
{
int
todoMvcc
;
}
tableData
=
table
;
if
(!
database
.
isPersistent
()
||
id
<
0
)
{
this
.
store
=
database
.
getPageStore
();
if
(!
database
.
isPersistent
())
{
int
todo
;
this
.
headPos
=
0
;
return
;
}
this
.
store
=
database
.
getPageStore
();
if
(
headPos
==
Index
.
EMPTY_HEAD
)
{
// new table
headPos
=
store
.
allocatePage
();
this
.
headPos
=
headPos
=
store
.
allocatePage
();
store
.
addMeta
(
this
);
PageDataLeaf
root
=
new
PageDataLeaf
(
this
,
headPos
,
Page
.
ROOT
,
store
.
createDataPage
());
store
.
updateRecord
(
root
,
true
,
root
.
data
);
...
...
@@ -61,6 +64,7 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
// Page.ROOT, store.createDataPage());
// store.updateRecord(root, true, root.data);
}
else
{
this
.
headPos
=
headPos
;
PageData
root
=
getPage
(
headPos
);
lastKey
=
root
.
getLastKey
();
rowCount
=
root
.
getRowCount
();
...
...
@@ -68,9 +72,8 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
store
.
updateRecord
(
root
,
false
,
null
);
int
reuseKeysIfManyDeleted
;
}
this
.
headPos
=
headPos
;
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"open
"
+
rowCount
);
trace
.
debug
(
"open
ed "
+
getName
()
+
" rows:
"
+
rowCount
);
}
table
.
setRowCount
(
rowCount
);
}
...
...
@@ -80,7 +83,9 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
}
public
void
add
(
Session
session
,
Row
row
)
throws
SQLException
{
row
.
setPos
(++
lastKey
);
if
(
row
.
getPos
()
==
0
)
{
row
.
setPos
(++
lastKey
);
}
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"add "
+
row
.
getPos
());
}
...
...
@@ -217,7 +222,7 @@ public class PageScanIndex extends BaseIndex implements RowIndex {
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"remove"
);
}
int
todo
;
store
.
removeMeta
(
this
)
;
}
public
void
truncate
(
Session
session
)
throws
SQLException
{
...
...
h2/src/main/org/h2/store/PageLog.java
浏览文件 @
03e1c25a
...
...
@@ -154,12 +154,11 @@ public class PageLog {
int
tableId
=
in
.
readInt
();
Row
row
=
readRow
(
in
,
data
);
if
(!
undo
)
{
Database
db
=
store
.
getDatabase
();
if
(
store
.
isSessionCommitted
(
sessionId
,
id
,
pos
))
{
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"log redo "
+
(
x
==
ADD
?
"+"
:
"-"
)
+
" "
+
row
);
trace
.
debug
(
"log redo "
+
(
x
==
ADD
?
"+"
:
"-"
)
+
"
table:"
+
tableId
+
"
"
+
row
);
}
db
.
redo
(
tableId
,
row
,
x
==
ADD
);
store
.
redo
(
tableId
,
row
,
x
==
ADD
);
}
}
}
else
if
(
x
==
COMMIT
)
{
...
...
h2/src/main/org/h2/store/PageStore.java
浏览文件 @
03e1c25a
...
...
@@ -10,6 +10,7 @@ import java.io.IOException;
import
java.io.OutputStream
;
import
java.sql.SQLException
;
import
java.util.HashMap
;
import
java.util.Iterator
;
import
org.h2.constant.ErrorCode
;
import
org.h2.engine.Database
;
import
org.h2.engine.Session
;
...
...
@@ -23,9 +24,10 @@ import org.h2.message.Message;
import
org.h2.message.Trace
;
import
org.h2.message.TraceSystem
;
import
org.h2.result.Row
;
import
org.h2.
result.SearchRow
;
import
org.h2.
schema.Schema
;
import
org.h2.table.Column
;
import
org.h2.table.IndexColumn
;
import
org.h2.table.Table
;
import
org.h2.table.TableData
;
import
org.h2.util.Cache
;
import
org.h2.util.Cache2Q
;
...
...
@@ -50,7 +52,7 @@ import org.h2.value.ValueString;
* (512 - 32768, must be a power of 2)</li>
* <li>52: write version (0, otherwise the file is opened in read-only mode)</li>
* <li>53: read version (0, otherwise opening the file fails)</li>
* <li>54-57:
system
table root page number (usually 1)</li>
* <li>54-57:
meta
table root page number (usually 1)</li>
* <li>58-61: free list head page number (usually 2)</li>
* <li>62-65: log[0] head page number (usually 3)</li>
* <li>66-69: log[1] head page number (usually 4)</li>
...
...
@@ -108,6 +110,10 @@ public class PageStore implements CacheWriter {
private
static
final
int
READ_VERSION
=
0
;
private
static
final
int
WRITE_VERSION
=
0
;
private
static
final
int
META_TYPE_SCAN_INDEX
=
0
;
private
static
final
int
META_TYPE_BTREE_INDEX
=
1
;
private
static
final
int
META_TABLE_ID
=
-
1
;
private
Database
database
;
private
final
Trace
trace
;
private
String
fileName
;
...
...
@@ -118,7 +124,7 @@ public class PageStore implements CacheWriter {
private
int
pageSize
;
private
int
pageSizeShift
;
private
int
system
RootPageId
;
private
int
metaTable
RootPageId
;
private
int
freeListRootPageId
;
private
int
lastUsedPage
;
...
...
@@ -142,9 +148,11 @@ public class PageStore implements CacheWriter {
*/
private
PageLog
[]
logs
=
new
PageLog
[
LOG_COUNT
];
private
TableData
pageTable
;
private
PageScanIndex
pageIndex
;
private
HashMap
metaObjects
=
new
HashMap
();
private
Schema
metaSchema
;
private
TableData
metaTable
;
private
PageScanIndex
metaIndex
;
private
HashMap
metaObjects
;
private
int
systemTableHeadPos
;
/**
* Create a new page store object.
...
...
@@ -160,7 +168,7 @@ public class PageStore implements CacheWriter {
this
.
database
=
database
;
trace
=
database
.
getTrace
(
Trace
.
PAGE_STORE
);
int
test
;
trace
.
setLevel
(
TraceSystem
.
DEBUG
);
//
trace.setLevel(TraceSystem.DEBUG);
this
.
cacheSize
=
cacheSizeDefault
;
String
cacheType
=
database
.
getCacheType
();
if
(
Cache2Q
.
TYPE_NAME
.
equals
(
cacheType
))
{
...
...
@@ -207,27 +215,27 @@ trace.setLevel(TraceSystem.DEBUG);
pageCount
=
(
int
)
(
fileLength
/
pageSize
);
initLogs
();
recover
(
true
);
openPageIndex
();
recover
(
false
);
checkpoint
();
}
else
{
// new
setPageSize
(
PAGE_SIZE_DEFAULT
);
file
=
database
.
openFile
(
fileName
,
accessMode
,
false
);
system
RootPageId
=
1
;
metaTable
RootPageId
=
1
;
freeListRootPageId
=
2
;
pageCount
=
3
+
LOG_COUNT
;
increaseFileSize
(
INCREMENT_PAGES
-
pageCount
);
PageFreeList
list
=
getFreeList
();
getFreeList
();
for
(
int
i
=
0
;
i
<
LOG_COUNT
;
i
++)
{
logRootPageIds
[
i
]
=
3
+
i
;
}
writeHeader
();
initLogs
();
open
Page
Index
();
open
Meta
Index
();
getLog
().
openForWriting
(
0
);
switchLogIfPossible
();
getLog
().
flush
();
systemTableHeadPos
=
Index
.
EMPTY_HEAD
;
}
lastUsedPage
=
getFreeList
().
getLastUsed
()
+
1
;
}
catch
(
SQLException
e
)
{
...
...
@@ -322,7 +330,7 @@ trace.setLevel(TraceSystem.DEBUG);
accessMode
=
"r"
;
file
=
database
.
openFile
(
fileName
,
accessMode
,
true
);
}
system
RootPageId
=
page
.
readInt
();
metaTable
RootPageId
=
page
.
readInt
();
freeListRootPageId
=
page
.
readInt
();
for
(
int
i
=
0
;
i
<
LOG_COUNT
;
i
++)
{
logRootPageIds
[
i
]
=
page
.
readInt
();
...
...
@@ -362,7 +370,7 @@ trace.setLevel(TraceSystem.DEBUG);
page
.
writeInt
(
pageSize
);
page
.
writeByte
((
byte
)
WRITE_VERSION
);
page
.
writeByte
((
byte
)
READ_VERSION
);
page
.
writeInt
(
system
RootPageId
);
page
.
writeInt
(
metaTable
RootPageId
);
page
.
writeInt
(
freeListRootPageId
);
for
(
int
i
=
0
;
i
<
LOG_COUNT
;
i
++)
{
page
.
writeInt
(
logRootPageIds
[
i
]);
...
...
@@ -601,15 +609,6 @@ trace.setLevel(TraceSystem.DEBUG);
}
}
/**
* Get the system table root page number.
*
* @return the page number
*/
public
int
getSystemRootPageId
()
{
return
systemRootPageId
;
}
PageLog
getLog
()
{
return
logs
[
activeLog
];
}
...
...
@@ -627,7 +626,12 @@ trace.setLevel(TraceSystem.DEBUG);
* @param undo true if the undo step should be run
*/
private
void
recover
(
boolean
undo
)
throws
SQLException
{
trace
.
debug
(
"log recover"
);
if
(
undo
)
{
trace
.
debug
(
"log recover"
);
}
else
{
openMetaIndex
();
readMetaData
();
}
try
{
recoveryRunning
=
true
;
int
maxId
=
0
;
...
...
@@ -665,7 +669,20 @@ trace.setLevel(TraceSystem.DEBUG);
}
finally
{
recoveryRunning
=
false
;
}
trace
.
debug
(
"log recover done"
);
if
(!
undo
)
{
PageScanIndex
index
=
(
PageScanIndex
)
metaObjects
.
get
(
ObjectUtils
.
getInteger
(
0
));
if
(
index
==
null
)
{
systemTableHeadPos
=
Index
.
EMPTY_HEAD
;
}
else
{
systemTableHeadPos
=
index
.
getHeadPos
();
}
for
(
Iterator
it
=
metaObjects
.
values
().
iterator
();
it
.
hasNext
();)
{
Index
openIndex
=
(
Index
)
it
.
next
();
openIndex
.
close
(
database
.
getSystemSession
());
}
metaObjects
=
null
;
trace
.
debug
(
"log recover done"
);
}
}
/**
...
...
@@ -740,83 +757,136 @@ trace.setLevel(TraceSystem.DEBUG);
return
state
.
isCommitted
(
logId
,
pos
);
}
public
int
getMetaTableHeadPos
()
throws
SQLException
{
int
todo
;
return
0
;
/**
* Get the position of the system table head.
*
* @return the system table head
*/
public
int
getSystemTableHeadPos
()
throws
SQLException
{
return
systemTableHeadPos
;
}
/**
* Redo a change in a table.
*
* @param tableId the object id of the table
* @param row the row
* @param add true if the record is added, false if deleted
*/
void
redo
(
int
tableId
,
Row
row
,
boolean
add
)
throws
SQLException
{
if
(
tableId
==
META_TABLE_ID
)
{
if
(
add
)
{
addMeta
(
row
);
}
else
{
removeMeta
(
row
);
}
}
PageScanIndex
index
=
(
PageScanIndex
)
metaObjects
.
get
(
ObjectUtils
.
getInteger
(
tableId
));
if
(
index
==
null
)
{
throw
Message
.
throwInternalError
(
"Table not found: "
+
tableId
+
" "
+
row
+
" "
+
add
);
}
Table
table
=
index
.
getTable
();
if
(
add
)
{
table
.
addRow
(
database
.
getSystemSession
(),
row
);
}
else
{
table
.
removeRow
(
database
.
getSystemSession
(),
row
);
}
}
private
void
open
Page
Index
()
throws
SQLException
{
private
void
open
Meta
Index
()
throws
SQLException
{
ObjectArray
cols
=
new
ObjectArray
();
cols
.
add
(
new
Column
(
"ID"
,
Value
.
INT
));
cols
.
add
(
new
Column
(
"TYPE"
,
Value
.
INT
));
cols
.
add
(
new
Column
(
"PARENT"
,
Value
.
INT
));
cols
.
add
(
new
Column
(
"HEAD"
,
Value
.
INT
));
cols
.
add
(
new
Column
(
"COLUMNS"
,
Value
.
STRING
));
int
headPos
=
getSystemRootPageId
();
pageTable
=
database
.
getMainSchema
().
createTable
(
"PAGE_INDEX"
,
0
,
cols
,
true
,
false
,
headPos
);
pageIndex
=
(
PageScanIndex
)
pageTable
.
getScanIndex
(
metaSchema
=
new
Schema
(
database
,
0
,
""
,
null
,
true
);
int
headPos
=
metaTableRootPageId
;
metaTable
=
new
TableData
(
metaSchema
,
"PAGE_INDEX"
,
META_TABLE_ID
,
cols
,
true
,
false
,
headPos
);
metaIndex
=
(
PageScanIndex
)
metaTable
.
getScanIndex
(
database
.
getSystemSession
());
metaObjects
=
new
HashMap
();
metaObjects
.
put
(
ObjectUtils
.
getInteger
(-
1
),
metaIndex
);
}
private
void
readMetaData
()
throws
SQLException
{
Cursor
cursor
=
page
Index
.
find
(
database
.
getSystemSession
(),
null
,
null
);
Cursor
cursor
=
meta
Index
.
find
(
database
.
getSystemSession
(),
null
,
null
);
while
(
cursor
.
next
())
{
Row
row
=
cursor
.
get
();
int
headPos
=
row
.
getValue
(
0
).
getInt
();
int
type
=
row
.
getValue
(
1
).
getInt
();
int
id
=
row
.
getValue
(
2
).
getInt
();
int
tableId
=
row
.
getValue
(
3
).
getInt
();
String
columnList
=
row
.
getValue
(
4
).
getString
();
String
[]
columns
=
StringUtils
.
arraySplit
(
columnList
,
','
,
false
);
IndexType
indexType
=
IndexType
.
createNonUnique
(
true
);
Index
meta
;
TableData
table
;
if
(
type
==
0
)
{
ObjectArray
columnArray
=
new
ObjectArray
();
for
(
int
i
=
0
;
i
<
columns
.
length
;
i
++)
{
Column
col
=
new
Column
(
"C"
+
i
,
Value
.
INT
);
columnArray
.
add
(
col
);
}
table
=
new
TableData
(
database
.
getMainSchema
(),
"T"
+
id
,
id
,
columnArray
,
true
,
false
,
headPos
);
}
else
{
PageScanIndex
p
=
(
PageScanIndex
)
metaObjects
.
get
(
ObjectUtils
.
getInteger
(
tableId
));
table
=
(
TableData
)
p
.
getTable
();
addMeta
(
row
);
}
}
private
void
removeMeta
(
Row
row
)
throws
SQLException
{
int
id
=
row
.
getValue
(
0
).
getInt
();
Index
index
=
(
Index
)
metaObjects
.
remove
(
ObjectUtils
.
getInteger
(
id
));
index
.
getTable
().
removeIndex
(
index
);
if
(
index
instanceof
PageBtreeIndex
)
{
index
.
getSchema
().
remove
(
index
);
}
}
private
void
addMeta
(
Row
row
)
throws
SQLException
{
int
id
=
row
.
getValue
(
0
).
getInt
();
int
type
=
row
.
getValue
(
1
).
getInt
();
int
parent
=
row
.
getValue
(
2
).
getInt
();
int
headPos
=
row
.
getValue
(
3
).
getInt
();
String
columnList
=
row
.
getValue
(
4
).
getString
();
String
[]
columns
=
StringUtils
.
arraySplit
(
columnList
,
','
,
false
);
IndexType
indexType
=
IndexType
.
createNonUnique
(
true
);
Index
meta
;
if
(
trace
.
isDebugEnabled
())
{
trace
.
debug
(
"addMeta id="
+
id
+
" type="
+
type
+
" parent="
+
parent
+
" columns="
+
columnList
);
}
if
(
type
==
META_TYPE_SCAN_INDEX
)
{
ObjectArray
columnArray
=
new
ObjectArray
();
for
(
int
i
=
0
;
i
<
columns
.
length
;
i
++)
{
Column
col
=
new
Column
(
"C"
+
i
,
Value
.
INT
);
columnArray
.
add
(
col
);
}
TableData
table
=
new
TableData
(
metaSchema
,
"T"
+
id
,
id
,
columnArray
,
true
,
false
,
headPos
);
meta
=
table
.
getScanIndex
(
database
.
getSystemSession
());
}
else
{
PageScanIndex
p
=
(
PageScanIndex
)
metaObjects
.
get
(
ObjectUtils
.
getInteger
(
parent
));
TableData
table
=
(
TableData
)
p
.
getTable
();
Column
[]
tableCols
=
table
.
getColumns
();
Column
[]
cols
=
new
Column
[
columns
.
length
];
for
(
int
i
=
0
;
i
<
columns
.
length
;
i
++)
{
cols
[
i
]
=
tableCols
[
Integer
.
parseInt
(
columns
[
i
])];
}
IndexColumn
[]
indexColumns
=
IndexColumn
.
wrap
(
cols
);
if
(
type
==
0
)
{
meta
=
new
PageScanIndex
(
table
,
id
,
indexColumns
,
indexType
,
headPos
);
}
else
{
meta
=
new
PageBtreeIndex
(
table
,
id
,
"I"
+
id
,
indexColumns
,
indexType
,
headPos
);
}
metaObjects
.
put
(
ObjectUtils
.
getInteger
(
id
),
meta
);
meta
=
table
.
addIndex
(
database
.
getSystemSession
(),
"I"
+
id
,
id
,
indexColumns
,
indexType
,
headPos
,
null
);
}
metaObjects
.
put
(
ObjectUtils
.
getInteger
(
id
),
meta
);
}
public
void
addMeta
(
Index
index
)
throws
SQLException
{
int
type
=
index
instanceof
PageScanIndex
?
0
:
1
;
int
type
=
index
instanceof
PageScanIndex
?
META_TYPE_SCAN_INDEX
:
META_TYPE_BTREE_INDEX
;
Column
[]
columns
=
index
.
getColumns
();
String
[]
columnIndexes
=
new
String
[
columns
.
length
];
for
(
int
i
=
0
;
i
<
columns
.
length
;
i
++)
{
columnIndexes
[
i
]
=
String
.
valueOf
(
columns
[
i
].
getColumnId
());
}
String
columnList
=
StringUtils
.
arrayCombine
(
columnIndexes
,
','
);
addMeta
(
index
.
getId
(),
type
,
index
.
get
HeadPos
(),
index
.
getTable
().
getId
(),
columnList
);
addMeta
(
index
.
getId
(),
type
,
index
.
get
Table
().
getId
(),
index
.
getHeadPos
(),
columnList
);
}
private
void
addMeta
(
int
id
,
int
type
,
int
parent
,
int
headPos
,
String
columnList
)
throws
SQLException
{
Row
row
=
page
Table
.
getTemplateRow
();
Row
row
=
meta
Table
.
getTemplateRow
();
row
.
setValue
(
0
,
ValueInt
.
get
(
id
));
row
.
setValue
(
1
,
ValueInt
.
get
(
type
));
row
.
setValue
(
2
,
ValueInt
.
get
(
parent
));
row
.
setValue
(
3
,
ValueInt
.
get
(
headPos
));
row
.
setValue
(
3
,
ValueString
.
get
(
columnList
));
pageIndex
.
add
(
database
.
getSystemSession
(),
row
);
row
.
setValue
(
4
,
ValueString
.
get
(
columnList
));
row
.
setPos
(
id
+
1
);
metaIndex
.
add
(
database
.
getSystemSession
(),
row
);
}
public
void
removeMeta
(
Index
index
)
throws
SQLException
{
Session
session
=
database
.
getSystemSession
();
Row
row
=
metaIndex
.
getRow
(
session
,
index
.
getId
()
+
1
);
metaIndex
.
remove
(
session
,
row
);
}
}
h2/src/main/org/h2/table/TableData.java
浏览文件 @
03e1c25a
...
...
@@ -239,15 +239,15 @@ public class TableData extends Table implements RecordReader {
}
else
{
database
.
addSchemaObject
(
session
,
index
);
}
//
Need to update, because maybe the index is rebuilt at startup,
//
and so the head pos may have changed, which needs to be stored now.
// addSchemaObject doesn't update the sys table at startup
if
(
index
.
getIndexType
().
getPersistent
()
&&
!
database
.
getReadOnly
()
&&
!
database
.
getLog
().
containsInDoubtTransactions
())
{
//
can not save anything in the log file if it contains in-doubt transactions
if
(
!
SysProperties
.
PAGE_STORE
)
{
// must not do this when using the page store
//
because recovery is not done yet
//
must not do this when using the page store
//
because recovery is not done yet
if
(!
SysProperties
.
PAGE_STORE
)
{
// need to update, because maybe the index is rebuilt at startup,
// and so the head pos may have changed, which needs to be stored now.
//
addSchemaObject doesn't update the sys table at startup
if
(
index
.
getIndexType
().
getPersistent
()
&&
!
database
.
getReadOnly
()
&&
!
database
.
getLog
().
containsInDoubtTransactions
())
{
//
can not save anything in the log file if it contains in-doubt transactions
database
.
update
(
session
,
index
);
}
}
...
...
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