TableView (H2 Database Engine wt-1.0.1 API)

java.lang.Object
- org.h2.engine.DbObjectBase
- - org.h2.schema.SchemaObjectBase
  - - org.h2.table.Table
    - - org.h2.table.TableView

所有已实现的接口:

DbObject, SchemaObject
```
public class TableView
extends Table
```
A view is a virtual table that is defined by a query.

作者:

Thomas Mueller, Nicolas Fortin, Atelier SIG, IRSTV FR CNRS 24888

字段概要
- 从类继承的字段 org.h2.table.Table
  columns, compareMode, isHidden, TYPE_CACHED, TYPE_MEMORY
- 从类继承的字段 org.h2.engine.DbObjectBase
  comment, database, trace
- 从接口继承的字段 org.h2.engine.DbObject
  AGGREGATE, COMMENT, CONSTANT, CONSTRAINT, FUNCTION_ALIAS, INDEX, RIGHT, ROLE, SCHEMA, SEQUENCE, SETTING, TABLE_OR_VIEW, TRIGGER, USER, USER_DATATYPE

构造器概要

构造器
构造器和说明
`TableView(Schema schema, int id, String name, String querySQL, ArrayList<Parameter> params, Column[] columnTemplates, Session session, boolean recursive)`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`void`	`addDependencies(HashSet<DbObject> dependencies)` Add all objects that this table depends on to the hash set.
`Index`	`addIndex(Session session, String indexName, int indexId, IndexColumn[] cols, IndexType indexType, boolean create, String indexComment)` Create an index for this table
`void`	`addRow(Session session, Row row)` Add a row to the table and all indexes.
`boolean`	`canDrop()` Check if this table can be dropped.
`boolean`	`canGetRowCount()` Check if the row count can be retrieved quickly.
`boolean`	`canReference()` Check if this table can be referenced.
`void`	`checkRename()` Check if this object can be renamed.
`void`	`checkSupportAlter()` Check if this table supports ALTER TABLE.
`static void`	`clearIndexCaches(Database database)` Clear the cached indexes for all sessions.
`void`	`close(Session session)` Close the table object and flush changes.
`static TableView`	`createTempView(Session session, User owner, String name, Query query, Query topQuery)` Create a temporary view out of the given query.
`PlanItem`	`getBestPlanItem(Session session, int[] masks, TableFilter[] filters, int filter, SortOrder sortOrder, HashSet<Column> allColumnsSet)` Get the best plan for the given search mask.
`String`	`getCreateSQL()` Build a SQL statement to re-create this object.
`String`	`getCreateSQL(boolean orReplace, boolean force)` Generate "CREATE" SQL statement for the view.
`String`	`getCreateSQLForCopy(Table table, String quotedName)` Build a SQL statement to re-create the object, or to create a copy of the object with a different name or referencing a different table
`long`	`getDiskSpaceUsed()`
`String`	`getDropSQL()` Build a SQL statement to drop this object.
`ArrayList<Index>`	`getIndexes()` Get all indexes for this table.
`long`	`getMaxDataModificationId()` Get the last data modification id.
`User`	`getOwner()`
`int`	`getParameterOffset(ArrayList<Parameter> additionalParameters)` Get the index of the first parameter.
`String`	`getQuery()`
`LocalResult`	`getRecursiveResult()`
`long`	`getRowCount(Session session)` Get the row count for this table.
`long`	`getRowCountApproximation()` Get the approximated row count for this table.
`Index`	`getScanIndex(Session session)` Get the scan index to iterate through all rows.
`Index`	`getScanIndex(Session session, int[] masks, TableFilter[] filters, int filter, SortOrder sortOrder, HashSet<Column> allColumnsSet)` Get the scan index for this table.
`String`	`getSQL()` Get the SQL name of this object (may be quoted).
`TableType`	`getTableType()` Get the table type name
`Query`	`getTopQuery()`
`Index`	`getUniqueIndex()` Get any unique index for this table if one exists.
`boolean`	`isDeterministic()` Check if the table is deterministic.
`boolean`	`isInvalid()` Check if this view is currently invalid.
`boolean`	`isLockedExclusively()` Check if this table is locked exclusively.
`boolean`	`isQueryComparable()` Check whether the table (or view) contains no columns that prevent index conditions to be used.
`boolean`	`isRecursive()`
`boolean`	`isTableExpression()`
`boolean`	`isView()`
`boolean`	`lock(Session session, boolean exclusive, boolean forceLockEvenInMvcc)` Lock the table for the given session.
`DbException`	`recompile(Session session, boolean force, boolean clearIndexCache)` Re-compile the view query and all views that depend on this object.
`void`	`removeChildrenAndResources(Session session)` Remove all dependent objects and free all resources (files, blocks in files) of this object.
`void`	`removeRow(Session session, Row row)` Remove a row from the table and all indexes.
`void`	`replace(String querySQL, String[] columnNames, Session session, boolean recursive, boolean force)` Try to replace the SQL statement of the view and re-compile this and all dependent views.
`void`	`setRecursiveResult(LocalResult value)`
`void`	`setTableExpression(boolean tableExpression)`
`void`	`truncate(Session session)` Remove all rows from the table and indexes.
`void`	`unlock(Session s)` Release the lock for this session.

从类继承的方法 org.h2.table.Table
addConstraint, addSequence, addTrigger, addView, canTruncate, checkDeadlock, checkWritingAllowed, commit, compareTypeSafe, doesColumnExist, dropMultipleColumnsConstraintsAndIndexes, findPrimaryKey, fire, fireAfterRow, fireBeforeRow, fireRow, getCheckForeignKeyConstraints, getChildren, getColumn, getColumn, getColumns, getCompareMode, getConstraints, getDefaultValue, getIndexForColumn, getOnCommitDrop, getOnCommitTruncate, getPrimaryKey, getRow, getRowIdColumn, getTemplateRow, getTemplateSimpleRow, getType, getViews, hasSelectTrigger, isGlobalTemporary, isHidden, isLockedExclusivelyBy, isMVStore, isPersistData, isPersistIndexes, removeConstraint, removeIndex, removeIndexOrTransferOwnership, removeSequence, removeTrigger, removeView, rename, renameColumn, setCheckForeignKeyConstraints, setColumns, setHidden, setOnCommitDrop, setOnCommitTruncate, updateRows, validateConvertUpdateSequence

从类继承的方法 org.h2.schema.SchemaObjectBase
getSchema, initSchemaObjectBase

从类继承的方法 org.h2.engine.DbObjectBase
getComment, getDatabase, getId, getModificationId, getName, initDbObjectBase, invalidate, isTemporary, isValid, setComment, setModified, setObjectName, setTemporary, toString

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.h2.engine.DbObject
getComment, getDatabase, getId, getName, isTemporary, setComment, setTemporary

- 构造器详细资料
  - TableView
```
public TableView(Schema schema,
                 int id,
                 String name,
                 String querySQL,
                 ArrayList<Parameter> params,
                 Column[] columnTemplates,
                 Session session,
                 boolean recursive)
```
- 方法详细资料
  - replace
```
public void replace(String querySQL,
                    String[] columnNames,
                    Session session,
                    boolean recursive,
                    boolean force)
```
    Try to replace the SQL statement of the view and re-compile this and all dependent views.
    
    参数:
    
    querySQL - the SQL statement
    
    columnNames - the column names
    
    session - the session
    
    recursive - whether this is a recursive view
    
    force - if errors should be ignored
  - recompile
```
public DbException recompile(Session session,
                             boolean force,
                             boolean clearIndexCache)
```
    Re-compile the view query and all views that depend on this object.
    
    参数:
    
    session - the session
    
    force - if exceptions should be ignored
    
    clearIndexCache - if we need to clear view index cache
    
    返回:
    
    the exception if re-compiling this or any dependent view failed (only when force is disabled)
  - isView
```
public boolean isView()
```
    覆盖:
    
    isView 在类中 Table
  - isInvalid
```
public boolean isInvalid()
```
    Check if this view is currently invalid.
    
    返回:
    
    true if it is
  - getBestPlanItem
```
public PlanItem getBestPlanItem(Session session,
                                int[] masks,
                                TableFilter[] filters,
                                int filter,
                                SortOrder sortOrder,
                                HashSet<Column> allColumnsSet)
```
    从类复制的说明: Table
    
    Get the best plan for the given search mask.
    
    覆盖:
    
    getBestPlanItem 在类中 Table
    
    参数:
    
    session - the session
    
    masks - per-column comparison bit masks, null means 'always false', see constants in IndexCondition
    
    filters - all joined table filters
    
    filter - the current table filter index
    
    sortOrder - the sort order
    
    allColumnsSet - the set of all columns
    
    返回:
    
    the plan item
  - isQueryComparable
```
public boolean isQueryComparable()
```
    从类复制的说明: Table
    
    Check whether the table (or view) contains no columns that prevent index conditions to be used. For example, a view that contains the ROWNUM() pseudo-column prevents this.
    
    覆盖:
    
    isQueryComparable 在类中 Table
    
    返回:
    
    true if the table contains no query-comparable column
  - getTopQuery
```
public Query getTopQuery()
```
  - getDropSQL
```
public String getDropSQL()
```
    从类复制的说明: DbObjectBase
    
    Build a SQL statement to drop this object.
    
    指定者:
    
    getDropSQL 在接口中 DbObject
    
    指定者:
    
    getDropSQL 在类中 DbObjectBase
    
    返回:
    
    the SQL statement
  - getCreateSQLForCopy
```
public String getCreateSQLForCopy(Table table,
                                  String quotedName)
```
    从接口复制的说明: DbObject
    
    Build a SQL statement to re-create the object, or to create a copy of the object with a different name or referencing a different table
    
    指定者:
    
    getCreateSQLForCopy 在接口中 DbObject
    
    覆盖:
    
    getCreateSQLForCopy 在类中 Table
    
    参数:
    
    table - the new table
    
    quotedName - the quoted name
    
    返回:
    
    the SQL statement
  - getCreateSQL
```
public String getCreateSQL()
```
    从类复制的说明: DbObjectBase
    
    Build a SQL statement to re-create this object.
    
    指定者:
    
    getCreateSQL 在接口中 DbObject
    
    指定者:
    
    getCreateSQL 在类中 DbObjectBase
    
    返回:
    
    the SQL statement
  - getCreateSQL
```
public String getCreateSQL(boolean orReplace,
                           boolean force)
```
    Generate "CREATE" SQL statement for the view.
    
    参数:
    
    orReplace - if true, then include the OR REPLACE clause
    
    force - if true, then include the FORCE clause
    
    返回:
    
    the SQL statement
  - checkRename
```
public void checkRename()
```
    从类复制的说明: DbObjectBase
    
    Check if this object can be renamed. System objects may not be renamed.
    
    指定者:
    
    checkRename 在接口中 DbObject
    
    指定者:
    
    checkRename 在类中 DbObjectBase
  - lock
```
public boolean lock(Session session,
                    boolean exclusive,
                    boolean forceLockEvenInMvcc)
```
    从类复制的说明: Table
    
    Lock the table for the given session. This method waits until the lock is granted.
    
    指定者:
    
    lock 在类中 Table
    
    参数:
    
    session - the session
    
    exclusive - true for write locks, false for read locks
    
    forceLockEvenInMvcc - lock even in the MVCC mode
    
    返回:
    
    true if the table was already exclusively locked by this session.
  - close
```
public void close(Session session)
```
    从类复制的说明: Table
    
    Close the table object and flush changes.
    
    指定者:
    
    close 在类中 Table
    
    参数:
    
    session - the session
  - unlock
```
public void unlock(Session s)
```
    从类复制的说明: Table
    
    Release the lock for this session.
    
    指定者:
    
    unlock 在类中 Table
    
    参数:
    
    s - the session
  - isLockedExclusively
```
public boolean isLockedExclusively()
```
    从类复制的说明: Table
    
    Check if this table is locked exclusively.
    
    指定者:
    
    isLockedExclusively 在类中 Table
    
    返回:
    
    true if it is.
  - addIndex
```
public Index addIndex(Session session,
                      String indexName,
                      int indexId,
                      IndexColumn[] cols,
                      IndexType indexType,
                      boolean create,
                      String indexComment)
```
    从类复制的说明: Table
    
    Create an index for this table
    
    指定者:
    
    addIndex 在类中 Table
    
    参数:
    
    session - the session
    
    indexName - the name of the index
    
    indexId - the id
    
    cols - the index columns
    
    indexType - the index type
    
    create - whether this is a new index
    
    indexComment - the comment
    
    返回:
    
    the index
  - removeRow
```
public void removeRow(Session session,
                      Row row)
```
    从类复制的说明: Table
    
    Remove a row from the table and all indexes.
    
    指定者:
    
    removeRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
  - addRow
```
public void addRow(Session session,
                   Row row)
```
    从类复制的说明: Table
    
    Add a row to the table and all indexes.
    
    指定者:
    
    addRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
  - checkSupportAlter
```
public void checkSupportAlter()
```
    从类复制的说明: Table
    
    Check if this table supports ALTER TABLE.
    
    指定者:
    
    checkSupportAlter 在类中 Table
  - truncate
```
public void truncate(Session session)
```
    从类复制的说明: Table
    
    Remove all rows from the table and indexes.
    
    指定者:
    
    truncate 在类中 Table
    
    参数:
    
    session - the session
  - getRowCount
```
public long getRowCount(Session session)
```
    从类复制的说明: Table
    
    Get the row count for this table.
    
    指定者:
    
    getRowCount 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the row count
  - canGetRowCount
```
public boolean canGetRowCount()
```
    从类复制的说明: Table
    
    Check if the row count can be retrieved quickly.
    
    指定者:
    
    canGetRowCount 在类中 Table
    
    返回:
    
    true if it can
  - canDrop
```
public boolean canDrop()
```
    从类复制的说明: Table
    
    Check if this table can be dropped.
    
    指定者:
    
    canDrop 在类中 Table
    
    返回:
    
    true if it can
  - getTableType
```
public TableType getTableType()
```
    从类复制的说明: Table
    
    Get the table type name
    
    指定者:
    
    getTableType 在类中 Table
    
    返回:
    
    the table type name
  - removeChildrenAndResources
```
public void removeChildrenAndResources(Session session)
```
    从类复制的说明: DbObjectBase
    
    Remove all dependent objects and free all resources (files, blocks in files) of this object.
    
    指定者:
    
    removeChildrenAndResources 在接口中 DbObject
    
    覆盖:
    
    removeChildrenAndResources 在类中 Table
    
    参数:
    
    session - the session
  - clearIndexCaches
```
public static void clearIndexCaches(Database database)
```
    Clear the cached indexes for all sessions.
    
    参数:
    
    database - the database
  - getSQL
```
public String getSQL()
```
    从接口复制的说明: DbObject
    
    Get the SQL name of this object (may be quoted).
    
    指定者:
    
    getSQL 在接口中 DbObject
    
    覆盖:
    
    getSQL 在类中 SchemaObjectBase
    
    返回:
    
    the SQL name
  - getQuery
```
public String getQuery()
```
  - getScanIndex
```
public Index getScanIndex(Session session)
```
    从类复制的说明: Table
    
    Get the scan index to iterate through all rows.
    
    指定者:
    
    getScanIndex 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the index
  - getScanIndex
```
public Index getScanIndex(Session session,
                          int[] masks,
                          TableFilter[] filters,
                          int filter,
                          SortOrder sortOrder,
                          HashSet<Column> allColumnsSet)
```
    从类复制的说明: Table
    
    Get the scan index for this table.
    
    覆盖:
    
    getScanIndex 在类中 Table
    
    参数:
    
    session - the session
    
    masks - the search mask
    
    filters - the table filters
    
    filter - the filter index
    
    sortOrder - the sort order
    
    allColumnsSet - all columns
    
    返回:
    
    the scan index
  - canReference
```
public boolean canReference()
```
    从类复制的说明: Table
    
    Check if this table can be referenced.
    
    覆盖:
    
    canReference 在类中 Table
    
    返回:
    
    true if it can
  - getIndexes
```
public ArrayList<Index> getIndexes()
```
    从类复制的说明: Table
    
    Get all indexes for this table.
    
    指定者:
    
    getIndexes 在类中 Table
    
    返回:
    
    the list of indexes
  - getMaxDataModificationId
```
public long getMaxDataModificationId()
```
    从类复制的说明: Table
    
    Get the last data modification id.
    
    指定者:
    
    getMaxDataModificationId 在类中 Table
    
    返回:
    
    the modification id
  - getUniqueIndex
```
public Index getUniqueIndex()
```
    从类复制的说明: Table
    
    Get any unique index for this table if one exists.
    
    指定者:
    
    getUniqueIndex 在类中 Table
    
    返回:
    
    a unique index
  - getOwner
```
public User getOwner()
```
  - createTempView
```
public static TableView createTempView(Session session,
                                       User owner,
                                       String name,
                                       Query query,
                                       Query topQuery)
```
    Create a temporary view out of the given query.
    
    参数:
    
    session - the session
    
    owner - the owner of the query
    
    name - the view name
    
    query - the query
    
    topQuery - the top level query
    
    返回:
    
    the view table
  - getRowCountApproximation
```
public long getRowCountApproximation()
```
    从类复制的说明: Table
    
    Get the approximated row count for this table.
    
    指定者:
    
    getRowCountApproximation 在类中 Table
    
    返回:
    
    the approximated row count
  - getDiskSpaceUsed
```
public long getDiskSpaceUsed()
```
    指定者:
    
    getDiskSpaceUsed 在类中 Table
  - getParameterOffset
```
public int getParameterOffset(ArrayList<Parameter> additionalParameters)
```
    Get the index of the first parameter.
    
    参数:
    
    additionalParameters - additional parameters
    
    返回:
    
    the index of the first parameter
  - isRecursive
```
public boolean isRecursive()
```
  - isDeterministic
```
public boolean isDeterministic()
```
    从类复制的说明: Table
    
    Check if the table is deterministic.
    
    指定者:
    
    isDeterministic 在类中 Table
    
    返回:
    
    true if it is
  - setRecursiveResult
```
public void setRecursiveResult(LocalResult value)
```
  - getRecursiveResult
```
public LocalResult getRecursiveResult()
```
  - setTableExpression
```
public void setTableExpression(boolean tableExpression)
```
  - isTableExpression
```
public boolean isTableExpression()
```
  - addDependencies
```
public void addDependencies(HashSet<DbObject> dependencies)
```
    从类复制的说明: Table
    
    Add all objects that this table depends on to the hash set.
    
    覆盖:
    
    addDependencies 在类中 Table
    
    参数:
    
    dependencies - the current set of dependencies

类 TableView

字段概要

从类继承的字段 org.h2.table.Table

从类继承的字段 org.h2.engine.DbObjectBase

从接口继承的字段 org.h2.engine.DbObject

构造器概要

方法概要

从类继承的方法 org.h2.table.Table

从类继承的方法 org.h2.schema.SchemaObjectBase

从类继承的方法 org.h2.engine.DbObjectBase

从类继承的方法 java.lang.Object

从接口继承的方法 org.h2.engine.DbObject

构造器详细资料

TableView

方法详细资料

replace

recompile

isView

isInvalid

getBestPlanItem

isQueryComparable

getTopQuery

getDropSQL

getCreateSQLForCopy

getCreateSQL

getCreateSQL

checkRename

lock

close

unlock

isLockedExclusively

addIndex

removeRow

addRow

checkSupportAlter

truncate

getRowCount

canGetRowCount

canDrop

getTableType

removeChildrenAndResources

clearIndexCaches

getSQL

getQuery

getScanIndex

getScanIndex

canReference

getIndexes

getMaxDataModificationId

getUniqueIndex

getOwner

createTempView

getRowCountApproximation

getDiskSpaceUsed

getParameterOffset

isRecursive

isDeterministic

setRecursiveResult

getRecursiveResult

setTableExpression

isTableExpression

addDependencies