TableLink (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.engine.DbObject
- - org.h2.schema.SchemaObject
  - - org.h2.table.Table
    - - org.h2.table.TableLink

所有已实现的接口:

HasSQL
```
public class TableLink
extends Table
```
A linked table contains connection information for a table accessible by JDBC. The table may be stored in a different database.

字段概要
- 从类继承的字段 org.h2.table.Table
  columns, compareMode, EXCLUSIVE_LOCK, isHidden, READ_LOCK, TYPE_CACHED, TYPE_MEMORY, WRITE_LOCK
- 从类继承的字段 org.h2.engine.DbObject
  AGGREGATE, comment, COMMENT, CONSTANT, CONSTRAINT, database, DOMAIN, FUNCTION_ALIAS, INDEX, RIGHT, ROLE, SCHEMA, SEQUENCE, SETTING, SYNONYM, TABLE_OR_VIEW, trace, TRIGGER, USER
- 从接口继承的字段 org.h2.util.HasSQL
  ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

构造器概要

构造器
构造器和说明
`TableLink(Schema schema, int id, String name, String driver, String url, String user, String password, String originalSchema, String originalTable, boolean emitUpdates, boolean force)`

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
`Index`	`addIndex(SessionLocal session, String indexName, int indexId, IndexColumn[] cols, int uniqueColumnCount, IndexType indexType, boolean create, String indexComment)` Create an index for this table
`void`	`addRow(SessionLocal session, Row row)` Add a row to the table and all indexes.
`boolean`	`canDrop()` Check if this table can be dropped.
`boolean`	`canGetRowCount(SessionLocal session)` Check if the row count can be retrieved quickly.
`void`	`checkSupportAlter()` Check if this table supports ALTER TABLE.
`void`	`checkWritingAllowed()` Linked tables don't know if they are readonly.
`void`	`close(SessionLocal session)` Close the table object and flush changes.
`void`	`convertInsertRow(SessionLocal session, Row row, Boolean overridingSystem)` Prepares the specified row for INSERT operation.
`void`	`convertUpdateRow(SessionLocal session, Row row, boolean fromTrigger)` Prepares the specified row for UPDATE operation.
`PreparedStatement`	`execute(String sql, ArrayList<Value> params, boolean reusePrepared, SessionLocal session)` Execute a SQL statement using the given parameters.
`boolean`	`getAutocommit()` The autocommit mode
`String`	`getCreateSQL()` Construct the CREATE ...
`String`	`getDropSQL()` Construct a DROP ...
`int`	`getFetchSize()` The number of rows to fetch default is 0
`String`	`getIdentifierQuoteString()` Returns the identifier quote string or space.
`ArrayList<Index>`	`getIndexes()` Get all indexes for this table.
`long`	`getMaxDataModificationId()` Get the last data modification id.
`String`	`getQualifiedTable()`
`long`	`getRowCount(SessionLocal session)` Get the row count for this table.
`long`	`getRowCountApproximation(SessionLocal session)` Get the approximated row count for this table.
`Index`	`getScanIndex(SessionLocal session)` Get the scan index to iterate through all rows.
`TableType`	`getTableType()` Get the table type name
`boolean`	`isDeterministic()` Check if the table is deterministic.
`boolean`	`isInsertable()` Returns whether this table is insertable.
`boolean`	`isOracle()`
`void`	`removeChildrenAndResources(SessionLocal session)` Delete all dependent children objects and resources of this object.
`void`	`removeRow(SessionLocal session, Row row)` Remove a row from the table and all indexes.
`void`	`reusePreparedStatement(PreparedStatement prep, String sql)` Add this prepared statement to the list of cached statements.
`void`	`setAutoCommit(boolean mode)` Specify if the autocommit mode is activated or not
`void`	`setFetchSize(int fetchSize)` Specify the number of rows fetched by the linked table command
`void`	`setGlobalTemporary(boolean globalTemporary)`
`void`	`setReadOnly(boolean readOnly)`
`long`	`truncate(SessionLocal session)` Remove all rows from the table and indexes.
`void`	`updateRows(Prepared prepared, SessionLocal session, LocalResult rows)` Update a list of rows in this table.
`static DbException`	`wrapException(String sql, Exception ex)` Wrap a SQL exception that occurred while accessing a linked table.

从类继承的方法 org.h2.table.Table
addConstraint, addDependencies, addDependentView, addSequence, addSynonym, addTrigger, canReference, canTruncate, checkDeadlock, compareValues, createRow, doesColumnExist, dropMultipleColumnsConstraintsAndIndexes, findColumn, findPrimaryKey, fire, fireAfterRow, fireBeforeRow, fireRow, getBestPlanItem, getCheckForeignKeyConstraints, getChildren, getColumn, getColumn, getColumn, getColumns, getCompareMode, getConstraints, getDependentViews, getDiskSpaceUsed, getIdentityColumn, getIndex, getIndexForColumn, getMainIndexColumn, getNullRow, getOnCommitDrop, getOnCommitTruncate, getPrimaryKey, getRow, getRowFactory, getRowIdColumn, getScanIndex, getSQLTableType, getTemplateRow, getTemplateSimpleRow, getTriggers, getType, hasSelectTrigger, isGlobalTemporary, isHidden, isLockedExclusively, isLockedExclusivelyBy, isPersistData, isPersistIndexes, isQueryComparable, isRowLockable, isTableExpression, isView, lock, lockRow, removeColumnExpressionsDependencies, removeConstraint, removeDependentView, removeIndex, removeIndexOrTransferOwnership, removeSequence, removeSynonym, removeTrigger, rename, renameColumn, setCheckForeignKeyConstraints, setColumns, setHidden, setOnCommitDrop, setOnCommitTruncate, setTableExpression, unlock, updateRow

从类继承的方法 org.h2.schema.SchemaObject
getSchema, getSQL, getSQL

从类继承的方法 org.h2.engine.DbObject
checkRename, getComment, getCreateSQLForCopy, getCreateSQLForMeta, getDatabase, getId, getModificationId, getName, 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.util.HasSQL
getTraceSQL

- 构造器详细资料
  - TableLink
```
public TableLink(Schema schema,
                 int id,
                 String name,
                 String driver,
                 String url,
                 String user,
                 String password,
                 String originalSchema,
                 String originalTable,
                 boolean emitUpdates,
                 boolean force)
```
- 方法详细资料
  - getDropSQL
```
public String getDropSQL()
```
    从类复制的说明: DbObject
    
    Construct a DROP ... SQL statement for this object.
    
    覆盖:
    
    getDropSQL 在类中 DbObject
    
    返回:
    
    the SQL statement
  - getCreateSQL
```
public String getCreateSQL()
```
    从类复制的说明: DbObject
    
    Construct the CREATE ... SQL statement for this object.
    
    指定者:
    
    getCreateSQL 在类中 DbObject
    
    返回:
    
    the SQL statement
  - addIndex
```
public Index addIndex(SessionLocal session,
                      String indexName,
                      int indexId,
                      IndexColumn[] cols,
                      int uniqueColumnCount,
                      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
    
    uniqueColumnCount - the count of unique columns
    
    indexType - the index type
    
    create - whether this is a new index
    
    indexComment - the comment
    
    返回:
    
    the index
  - getScanIndex
```
public Index getScanIndex(SessionLocal 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
  - isInsertable
```
public boolean isInsertable()
```
    从类复制的说明: Table
    
    Returns whether this table is insertable.
    
    覆盖:
    
    isInsertable 在类中 Table
    
    返回:
    
    whether this table is insertable
  - removeRow
```
public void removeRow(SessionLocal 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(SessionLocal 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
  - close
```
public void close(SessionLocal 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
  - getRowCount
```
public long getRowCount(SessionLocal 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
  - wrapException
```
public static DbException wrapException(String sql,
                                        Exception ex)
```
    Wrap a SQL exception that occurred while accessing a linked table.
    
    参数:
    
    sql - the SQL statement
    
    ex - the exception from the remote database
    
    返回:
    
    the wrapped exception
  - getQualifiedTable
```
public String getQualifiedTable()
```
  - execute
```
public PreparedStatement execute(String sql,
                                 ArrayList<Value> params,
                                 boolean reusePrepared,
                                 SessionLocal session)
```
    Execute a SQL statement using the given parameters. Prepared statements are kept in a hash map to avoid re-creating them.
    
    参数:
    
    sql - the SQL statement
    
    params - the parameters or null
    
    reusePrepared - if the prepared statement can be re-used immediately
    
    session - the session
    
    返回:
    
    the prepared statement, or null if it is re-used
  - 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 long truncate(SessionLocal 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
    
    返回:
    
    number of removed rows, possibly including uncommitted rows
  - canGetRowCount
```
public boolean canGetRowCount(SessionLocal session)
```
    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
    
    参数:
    
    session - the session
    
    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(SessionLocal session)
```
    从类复制的说明: DbObject
    
    Delete all dependent children objects and resources of this object.
    
    覆盖:
    
    removeChildrenAndResources 在类中 Table
    
    参数:
    
    session - the session
  - isOracle
```
public boolean isOracle()
```
  - 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
  - updateRows
```
public void updateRows(Prepared prepared,
                       SessionLocal session,
                       LocalResult rows)
```
    从类复制的说明: Table
    
    Update a list of rows in this table.
    
    覆盖:
    
    updateRows 在类中 Table
    
    参数:
    
    prepared - the prepared statement
    
    session - the session
    
    rows - a list of row pairs of the form old row, new row, old row, new row,...
  - setGlobalTemporary
```
public void setGlobalTemporary(boolean globalTemporary)
```
  - setReadOnly
```
public void setReadOnly(boolean readOnly)
```
  - getRowCountApproximation
```
public long getRowCountApproximation(SessionLocal session)
```
    从类复制的说明: Table
    
    Get the approximated row count for this table.
    
    指定者:
    
    getRowCountApproximation 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the approximated row count
  - reusePreparedStatement
```
public void reusePreparedStatement(PreparedStatement prep,
                                   String sql)
```
    Add this prepared statement to the list of cached statements.
    
    参数:
    
    prep - the prepared statement
    
    sql - the SQL statement
  - 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
  - checkWritingAllowed
```
public void checkWritingAllowed()
```
    Linked tables don't know if they are readonly. This overwrites the default handling.
    
    覆盖:
    
    checkWritingAllowed 在类中 Table
  - convertInsertRow
```
public void convertInsertRow(SessionLocal session,
                             Row row,
                             Boolean overridingSystem)
```
    从类复制的说明: Table
    
    Prepares the specified row for INSERT operation. Identity, default, and generated values are evaluated, all values are converted to target data types and validated. Base value of identity column is updated when required by compatibility mode.
    
    覆盖:
    
    convertInsertRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
    
    overridingSystem - Boolean.TRUE for OVERRIDING SYSTEM VALUES, Boolean.FALSE for OVERRIDING USER VALUES, null if override clause is not specified
  - convertUpdateRow
```
public void convertUpdateRow(SessionLocal session,
                             Row row,
                             boolean fromTrigger)
```
    从类复制的说明: Table
    
    Prepares the specified row for UPDATE operation. Default and generated values are evaluated, all values are converted to target data types and validated. Base value of identity column is updated when required by compatibility mode.
    
    覆盖:
    
    convertUpdateRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
    
    fromTrigger - true if row was modified by INSERT or UPDATE trigger
  - setFetchSize
```
public void setFetchSize(int fetchSize)
```
    Specify the number of rows fetched by the linked table command
    
    参数:
    
    fetchSize - to set
  - setAutoCommit
```
public void setAutoCommit(boolean mode)
```
    Specify if the autocommit mode is activated or not
    
    参数:
    
    mode - to set
  - getAutocommit
```
public boolean getAutocommit()
```
    The autocommit mode
    
    返回:
    
    true if autocommit is on
  - getFetchSize
```
public int getFetchSize()
```
    The number of rows to fetch default is 0
    
    返回:
    
    number of rows to fetch
  - getIdentifierQuoteString
```
public String getIdentifierQuoteString()
```
    Returns the identifier quote string or space.
    
    返回:
    
    the identifier quote string or space

类 TableLink

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.DbObject

从接口继承的字段 org.h2.util.HasSQL

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.SchemaObject

从类继承的方法 org.h2.engine.DbObject

从类继承的方法 java.lang.Object

从接口继承的方法 org.h2.util.HasSQL

构造器详细资料

TableLink

方法详细资料

getDropSQL

getCreateSQL

addIndex

getScanIndex

isInsertable

removeRow

addRow

close

getRowCount

wrapException

getQualifiedTable

execute

checkSupportAlter

truncate

canGetRowCount

canDrop

getTableType

removeChildrenAndResources

isOracle

getIndexes

getMaxDataModificationId

updateRows

setGlobalTemporary

setReadOnly

getRowCountApproximation

reusePreparedStatement

isDeterministic

checkWritingAllowed

convertInsertRow

convertUpdateRow

setFetchSize

setAutoCommit

getAutocommit

getFetchSize

getIdentifierQuoteString