Class RenameNode

java.lang.Object

org.apache.derby.impl.sql.compile.QueryTreeNode

org.apache.derby.impl.sql.compile.StatementNode

org.apache.derby.impl.sql.compile.DDLStatementNode

org.apache.derby.impl.sql.compile.RenameNode

All Implemented Interfaces:

Visitable

class RenameNode
extends DDLStatementNode

A RenameNode is the root of a QueryTree that represents a RENAME TABLE/COLUMN/INDEX statement.

Field Summary

Fields

Modifier and Type	Field	Description
private long	conglomerateNumber
protected String	newObjectName
protected TableName	newTableName
protected String	oldObjectName
protected int	renamingWhat
protected TableDescriptor	td
protected boolean	usedAlterTable

Fields inherited from class DDLStatementNode

ADD_TYPE, DROP_STATISTICS, DROP_TYPE, implicitCreateSchema, LOCKING_TYPE, MODIFY_TYPE, UNKNOWN_TYPE, UPDATE_STATISTICS

Fields inherited from class StatementNode

EMPTY_TD_LIST, NEED_CURSOR_ACTIVATION, NEED_DDL_ACTIVATION, NEED_NOTHING_ACTIVATION, NEED_PARAM_ACTIVATION, NEED_ROW_ACTIVATION

Fields inherited from class QueryTreeNode

AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX

Constructor Summary

Constructors

Constructor	Description
RenameNode(Object tableName, String oldObjectName, String newObjectName, boolean usedAlterTable, int renamingWhat, ContextManager cm)	Constructor for a RenameNode

Method Summary

Modifier and Type	Method	Description
(package private) void	acceptChildren(Visitor v)	Accept a visitor on all child nodes.
void	bindStatement()	Bind this node.
private StandardException	descriptorExistsException(TupleDescriptor tuple, TupleDescriptor parent)
ConstantAction	makeConstantAction()	Create the Constant information that will drive the guts of Execution
boolean	referencesSessionSchema()	Return true if the node references SESSION schema tables (temporary or permanent)
private void	renameColumnBind(DataDictionary dd)
private void	renameTableBind(DataDictionary dd)
(package private) String	statementToString()
String	toString()	Convert this object to a String.

Methods inherited from class DDLStatementNode

activationKind, generate, getFullName, getObjectName, getRelativeName, getSchemaDescriptor, getSchemaDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, initAndCheck, isAtomic, makeFromList

Methods inherited from class StatementNode

executeSchemaName, executeStatementName, generate, getCursorInfo, getSPSName, lockTableForCompilation, makeResultDescription, needsSavepoint, optimizeStatement, updateIndexStatisticsFor

Methods inherited from class QueryTreeNode

accept, addTag, addUDTUsagePriv, addUDTUsagePriv, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, copyTagsFrom, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContext, getContextManager, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getLongProperty, getNullNode, getOffsetOrderedNodes, getOptimizerFactory, getOptimizerTracer, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, getUDTDesc, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeTableName, makeTableName, nodeHeader, optimizerTracingIsOn, orReliability, parseSearchCondition, parseStatement, printLabel, printSubNodes, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

newTableName

protected TableName newTableName

oldObjectName

protected String oldObjectName

newObjectName

protected String newObjectName

td

protected TableDescriptor td

conglomerateNumber

private long conglomerateNumber

usedAlterTable

protected boolean usedAlterTable

renamingWhat

protected int renamingWhat

Constructor Details

RenameNode

RenameNode(Object tableName,
 String oldObjectName,
 String newObjectName,
 boolean usedAlterTable,
 int renamingWhat,
 ContextManager cm)
    throws StandardException

Constructor for a RenameNode

Parameters:

tableName - The name of the table. This is the table which is being renamed in case of rename table. In case of rename column, the column being renamed belongs to this table. In case of rename index, this is null because index name is unique within a schema and doesn't have to be associated with a table name. Coming from ALTER TABLE path, tableName will be TableName object. Mostly a TableName object, but coming from RENAME COLUMN path, tableName will be a String.

oldObjectName - This is either the name of column/index in case of rename column/index. For rename table, this is null.

newObjectName - This is new name for table/column/index

usedAlterTable - True-Used Alter Table, False-Used Rename. For rename index, this will always be false because there is no alter table command to rename index

renamingWhat - Rename a 1 - table, 2 - column, 3 - index

cm - context manager

Throws:

StandardException - Thrown on error

Method Details

toString

public String toString()

Convert this object to a String. See comments in QueryTreeNode.java for how this should be done for tree printing.

Overrides:

toString in class DDLStatementNode

Returns:

This object as a String

statementToString

String statementToString()

Specified by:

statementToString in class StatementNode

bindStatement

public void bindStatement()
                   throws StandardException

Bind this node. This means doing any static error checking that can be done before actually renaming the table/column/index. For a table rename: looking up the from table, verifying it exists verifying it's not a system table, verifying it's not view and looking up to table, verifying it doesn't exist. For a column rename: looking up the table, verifying it exists, verifying it's not a system table, verifying it's not view, verifying the from column exists, verifying the to column doesn't exist. For a index rename: looking up the table, verifying it exists, verifying it's not a system table, verifying it's not view, verifying the from index exists, verifying the to index doesn't exist.

Overrides:

bindStatement in class StatementNode

Throws:

StandardException - Thrown on error

referencesSessionSchema

public boolean referencesSessionSchema()
                                throws StandardException

Return true if the node references SESSION schema tables (temporary or permanent)

Overrides:

referencesSessionSchema in class QueryTreeNode

Returns:

true if references SESSION schema tables, else false

Throws:

StandardException - Thrown on error

renameTableBind

private void renameTableBind(DataDictionary dd)
                      throws StandardException

Throws:

StandardException

renameColumnBind

private void renameColumnBind(DataDictionary dd)
                       throws StandardException

Throws:

StandardException

makeConstantAction

public ConstantAction makeConstantAction()
                                  throws StandardException

Create the Constant information that will drive the guts of Execution

Overrides:

makeConstantAction in class QueryTreeNode

Throws:

StandardException - Thrown on failure

descriptorExistsException

private StandardException descriptorExistsException(TupleDescriptor tuple,
 TupleDescriptor parent)

acceptChildren

void acceptChildren(Visitor v)
             throws StandardException

Description copied from class: QueryTreeNode

Accept a visitor on all child nodes. All sub-classes that add fields that should be visited, should override this method and call accept(v) on all visitable fields, as well as super.acceptChildren(v) to make sure all visitable fields defined by the super-class are accepted too.

Overrides:

acceptChildren in class DDLStatementNode

Parameters:

v - the visitor

Throws:

StandardException - on errors raised by the visitor