org.h2.engine

类 UserAggregate

java.lang.Object

org.h2.engine.DbObjectBase

org.h2.engine.UserAggregate

所有已实现的接口:

DbObject

public class UserAggregate
extends DbObjectBase

Represents a user-defined aggregate function.

字段概要

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
UserAggregate(Database db, int id, String name, String className, boolean force)

方法概要

限定符和类型	方法和说明
void	checkRename() Check if this object can be renamed.
String	getCreateSQL() Build a SQL statement to re-create this object.
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
String	getDropSQL() Build a SQL statement to drop this object.
Aggregate	getInstance()
String	getJavaClassName()
int	getType() Get the object type.
void	removeChildrenAndResources(Session session) Remove all dependent objects and free all resources (files, blocks in files) of this object.

从类继承的方法 org.h2.engine.DbObjectBase

getChildren, getComment, getDatabase, getId, getModificationId, getName, getSQL, initDbObjectBase, 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

构造器详细资料

UserAggregate

public UserAggregate(Database db,
                     int id,
                     String name,
                     String className,
                     boolean force)

方法详细资料

getInstance

public Aggregate getInstance()

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

参数:

table - the new table

quotedName - the quoted name

返回:

the SQL statement

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

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

getType

public int getType()

从接口复制的说明: DbObject

Get the object type.

返回:

the object type

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

指定者:

removeChildrenAndResources 在类中 DbObjectBase

参数:

session - the session

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

getJavaClassName

public String getJavaClassName()