org.apache.derby.impl.sql.compile
Class SetRoleNode

java.lang.Object
  org.apache.derby.impl.sql.compile.QueryTreeNode
      org.apache.derby.impl.sql.compile.StatementNode
          org.apache.derby.impl.sql.compile.MiscellaneousStatementNode
              org.apache.derby.impl.sql.compile.SetRoleNode

All Implemented Interfaces:

Node, Visitable

public class SetRoleNode
extends MiscellaneousStatementNode

A SetRoleNode is the root of a QueryTree that represents a SET ROLE statement.

Field Summary

private java.lang.String	name
private int	type

Fields inherited from class org.apache.derby.impl.sql.compile.StatementNode

EMPTY_TD_LIST, NEED_CURSOR_ACTIVATION, NEED_DDL_ACTIVATION, NEED_NOTHING_ACTIVATION, NEED_PARAM_ACTIVATION, NEED_ROW_ACTIVATION

Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX, isPrivilegeCollectionRequired

Constructor Summary

SetRoleNode()

Method Summary

(package private) int	activationKind() Override: Returns the type of activation this class generates.
void	generate(ActivationClassBuilder acb, MethodBuilder mb) Override: Generate code, need to push parameters
private void	generateParameterValueSet(ActivationClassBuilder acb) Generate the code to create the ParameterValueSet, if necessary, when constructing the activation.
void	init(java.lang.Object roleName, java.lang.Object type) Initializer for a SetRoleNode
boolean	isAtomic() Override to allow committing of reading SYSROLES, cf.
ConstantAction	makeConstantAction() Create the Constant information that will drive the guts of Execution.
java.lang.String	statementToString()
java.lang.String	toString() Convert this object to a String.

Methods inherited from class org.apache.derby.impl.sql.compile.MiscellaneousStatementNode

needsSavepoint

Methods inherited from class org.apache.derby.impl.sql.compile.StatementNode

bindStatement, executeSchemaName, executeStatementName, generate, getSPSName, lockTableForCompilation, makeResultDescription, optimizeStatement, updateIndexStatisticsFor

Methods inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

accept, acceptChildren, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, foundString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContextManager, getCursorInfo, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getNodeFactory, getNodeType, getNullNode, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, init, init, init, init, init, init, init, init, init, init, init, init, init, isInstanceOf, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeTableName, makeTableName, nodeHeader, orReliability, parseStatement, printLabel, printSubNodes, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setContextManager, setEndOffset, setNodeType, setRefActionInfo, stackPrint, treePrint, treePrint, verifyClassExist

Methods inherited from class java.lang.Object

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

Field Detail

name

private java.lang.String name

type

private int type

Constructor Detail

SetRoleNode

public SetRoleNode()

Method Detail

init

public void init(java.lang.Object roleName,
                 java.lang.Object type)

Initializer for a SetRoleNode

Specified by:

init in interface Node

Overrides:

init in class QueryTreeNode

Parameters:

roleName - The name of the new role, null if NONE specified

type - Type of role name could be USER or dynamic parameter

toString

public java.lang.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 StatementNode

Returns:

This object as a String

statementToString

public java.lang.String statementToString()

Specified by:

statementToString in class StatementNode

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

generate

public void generate(ActivationClassBuilder acb,
                     MethodBuilder mb)
              throws StandardException

Override: Generate code, need to push parameters

Overrides:

generate in class MiscellaneousStatementNode

Parameters:

acb - The ActivationClassBuilder for the class being built

mb - the method for the execute() method to be built

Throws:

StandardException - Thrown on error

generateParameterValueSet

private void generateParameterValueSet(ActivationClassBuilder acb)
                                throws StandardException

Generate the code to create the ParameterValueSet, if necessary, when constructing the activation. Also generate the code to call a method that will throw an exception if we try to execute without all the parameters being set.

Parameters:

acb - The ActivationClassBuilder for the class we're building

Throws:

StandardException - Thrown on error

activationKind

int activationKind()

Override: Returns the type of activation this class generates.

Overrides:

activationKind in class MiscellaneousStatementNode

Returns:

NEED_PARAM_ACTIVATION or NEED_NOTHING_ACTIVATION depending on params

isAtomic

public boolean isAtomic()

Override to allow committing of reading SYSROLES, cf. SetRoleConstantAction's call to userCommit to retain idle state. If atomic, that commit will fail.

Overrides:

isAtomic in class StatementNode

Returns:

false