TriggerObject (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.engine.DbObject
- - org.h2.schema.SchemaObject
  - - org.h2.schema.TriggerObject

所有已实现的接口:

HasSQL
```
public final class TriggerObject
extends SchemaObject
```
A trigger is created using the statement CREATE TRIGGER

字段概要

字段
限定符和类型字段和说明

static int DEFAULT_QUEUE_SIZE
The default queue size.
- 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

字段
限定符和类型	字段和说明
`static int`	`DEFAULT_QUEUE_SIZE` The default queue size.

构造器概要

构造器
构造器和说明

TriggerObject(Schema schema, int id, String name, Table table)

构造器
构造器和说明
`TriggerObject(Schema schema, int id, String name, Table table)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`void`	`close()` Close the trigger.
`void`	`fire(SessionLocal session, int type, boolean beforeAction)` Call the trigger class if required.
`boolean`	`fireRow(SessionLocal session, Table table, Row oldRow, Row newRow, boolean beforeAction, boolean rollback)` Call the fire method of the user-defined trigger class if required.
`String`	`getCreateSQL()` Construct the CREATE ...
`String`	`getCreateSQLForCopy(Table targetTable, 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
`int`	`getQueueSize()`
`Table`	`getTable()` Get the table of this trigger.
`String`	`getTriggerClassName()` Get the trigger class name.
`String`	`getTriggerSource()`
`int`	`getType()` Get the object type.
`int`	`getTypeMask()` Returns the trigger type.
`StringBuilder`	`getTypeNameList(StringBuilder builder)` Append the trigger types to the given string builder.
`boolean`	`isBefore()` Check if this is a before trigger.
`boolean`	`isInsteadOf()`
`boolean`	`isNoWait()`
`boolean`	`isOnRollback()`
`boolean`	`isRowBased()`
`boolean`	`isSelectTrigger()` Check whether this is a select trigger.
`void`	`removeChildrenAndResources(SessionLocal session)` Delete all dependent children objects and resources of this object.
`void`	`setBefore(boolean before)`
`void`	`setInsteadOf(boolean insteadOf)`
`void`	`setNoWait(boolean noWait)`
`void`	`setOnRollback(boolean onRollback)`
`void`	`setQueueSize(int size)`
`void`	`setRowBased(boolean rowBased)`
`void`	`setTriggerClassName(String triggerClassName, boolean force)` Set the trigger class name and load the class if possible.
`void`	`setTriggerSource(String source, boolean force)` Set the trigger source code and compile it if possible.
`void`	`setTypeMask(int typeMask)` Set the trigger type.

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

从类继承的方法 org.h2.engine.DbObject
checkRename, getChildren, getComment, getCreateSQLForMeta, getDatabase, getDropSQL, getId, getModificationId, getName, invalidate, isTemporary, isValid, rename, 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

- 字段详细资料
  - DEFAULT_QUEUE_SIZE
```
public static final int DEFAULT_QUEUE_SIZE
```
    The default queue size.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - TriggerObject
```
public TriggerObject(Schema schema,
                     int id,
                     String name,
                     Table table)
```
- 方法详细资料
  - setBefore
```
public void setBefore(boolean before)
```
  - isInsteadOf
```
public boolean isInsteadOf()
```
  - setInsteadOf
```
public void setInsteadOf(boolean insteadOf)
```
  - setTriggerClassName
```
public void setTriggerClassName(String triggerClassName,
                                boolean force)
```
    Set the trigger class name and load the class if possible.
    
    参数:
    
    triggerClassName - the name of the trigger class
    
    force - whether exceptions (due to missing class or access rights) should be ignored
  - setTriggerSource
```
public void setTriggerSource(String source,
                             boolean force)
```
    Set the trigger source code and compile it if possible.
    
    参数:
    
    source - the source code of a method returning a Trigger
    
    force - whether exceptions (due to syntax error) should be ignored
  - fire
```
public void fire(SessionLocal session,
                 int type,
                 boolean beforeAction)
```
    Call the trigger class if required. This method does nothing if the trigger is not defined for the given action. This method is called before or after any rows have been processed, once for each statement.
    
    参数:
    
    session - the session
    
    type - the trigger type
    
    beforeAction - if this method is called before applying the changes
  - fireRow
```
public boolean fireRow(SessionLocal session,
                       Table table,
                       Row oldRow,
                       Row newRow,
                       boolean beforeAction,
                       boolean rollback)
```
    Call the fire method of the user-defined trigger class if required. This method does nothing if the trigger is not defined for the given action. This method is called before or after a row is processed, possibly many times for each statement.
    
    参数:
    
    session - the session
    
    table - the table
    
    oldRow - the old row
    
    newRow - the new row
    
    beforeAction - true if this method is called before the operation is applied
    
    rollback - when the operation occurred within a rollback
    
    返回:
    
    true if no further action is required (for 'instead of' triggers)
  - getTypeMask
```
public int getTypeMask()
```
    Returns the trigger type.
    
    返回:
    
    the trigger type
  - setTypeMask
```
public void setTypeMask(int typeMask)
```
    Set the trigger type.
    
    参数:
    
    typeMask - the type
  - setRowBased
```
public void setRowBased(boolean rowBased)
```
  - isRowBased
```
public boolean isRowBased()
```
  - setQueueSize
```
public void setQueueSize(int size)
```
  - getQueueSize
```
public int getQueueSize()
```
  - setNoWait
```
public void setNoWait(boolean noWait)
```
  - isNoWait
```
public boolean isNoWait()
```
  - setOnRollback
```
public void setOnRollback(boolean onRollback)
```
  - isOnRollback
```
public boolean isOnRollback()
```
  - getCreateSQLForCopy
```
public String getCreateSQLForCopy(Table targetTable,
                                  String quotedName)
```
    从类复制的说明: 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
    
    覆盖:
    
    getCreateSQLForCopy 在类中 DbObject
    
    参数:
    
    targetTable - the new table
    
    quotedName - the quoted name
    
    返回:
    
    the SQL statement
  - getTypeNameList
```
public StringBuilder getTypeNameList(StringBuilder builder)
```
    Append the trigger types to the given string builder.
    
    参数:
    
    builder - the builder
    
    返回:
    
    the passed string builder
  - 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
  - getType
```
public int getType()
```
    从类复制的说明: DbObject
    
    Get the object type.
    
    指定者:
    
    getType 在类中 DbObject
    
    返回:
    
    the object type
  - removeChildrenAndResources
```
public void removeChildrenAndResources(SessionLocal session)
```
    从类复制的说明: DbObject
    
    Delete all dependent children objects and resources of this object.
    
    指定者:
    
    removeChildrenAndResources 在类中 DbObject
    
    参数:
    
    session - the session
  - getTable
```
public Table getTable()
```
    Get the table of this trigger.
    
    返回:
    
    the table
  - isBefore
```
public boolean isBefore()
```
    Check if this is a before trigger.
    
    返回:
    
    true if it is
  - getTriggerClassName
```
public String getTriggerClassName()
```
    Get the trigger class name.
    
    返回:
    
    the class name
  - getTriggerSource
```
public String getTriggerSource()
```
  - close
```
public void close()
           throws SQLException
```
    Close the trigger.
    
    抛出:
    
    SQLException - on failure
  - isSelectTrigger
```
public boolean isSelectTrigger()
```
    Check whether this is a select trigger.
    
    返回:
    
    true if it is

类 TriggerObject

字段概要

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.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

字段详细资料

DEFAULT_QUEUE_SIZE

构造器详细资料

TriggerObject

方法详细资料

setBefore

isInsteadOf

setInsteadOf

setTriggerClassName

setTriggerSource

fire

fireRow

getTypeMask

setTypeMask

setRowBased

isRowBased

setQueueSize

getQueueSize

setNoWait

isNoWait

setOnRollback

isOnRollback

getCreateSQLForCopy

getTypeNameList

getCreateSQL

getType

removeChildrenAndResources

getTable

isBefore

getTriggerClassName

getTriggerSource

close

isSelectTrigger