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

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.CreateTriggerNode

All Implemented Interfaces:

Node, Visitable

public class CreateTriggerNode
extends DDLStatementNode

A CreateTriggerNode is the root of a QueryTree that represents a CREATE TRIGGER statement.

Field Summary

private UUID	actionCompSchemaId
private StatementNode	actionNode
private int	actionOffset
private java.lang.String	actionText
private SchemaDescriptor	compSchemaDescriptor
private boolean	isBefore
private boolean	isEnabled
private boolean	isRow
private boolean	newTableInReferencingClause
private java.lang.String	newTableName
private static java.util.Comparator	OFFSET_COMPARATOR Comparator that can be used for sorting lists of FromBaseTables on the position they have in the SQL query string.
private boolean	oldTableInReferencingClause
private java.lang.String	oldTableName
private java.lang.String	originalActionText
private java.util.List	refClause
private int[]	referencedColInts
private int[]	referencedColsInTriggerAction
private TableName	tableName
private ResultColumnList	triggerCols
private int	triggerEventMask
private TableName	triggerName
private SchemaDescriptor	triggerSchemaDescriptor
private TableDescriptor	triggerTableDescriptor
private ValueNode	whenClause
private int	whenOffset
private java.lang.String	whenText

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

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

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

CreateTriggerNode()

Method Summary

private boolean	bindReferencesClause(DataDictionary dd)
void	bindStatement() Bind this CreateTriggerNode.
private void	checkInvalidTriggerReference(java.lang.String tableName)
private boolean	equals(java.lang.String left, java.lang.String right)
private void	forbidActionsOnGenCols()
void	init(java.lang.Object triggerName, java.lang.Object tableName, java.lang.Object triggerEventMask, java.lang.Object triggerCols, java.lang.Object isBefore, java.lang.Object isRow, java.lang.Object isEnabled, java.lang.Object refClause, java.lang.Object whenClause, java.lang.Object whenText, java.lang.Object whenOffset, java.lang.Object actionNode, java.lang.Object actionText, java.lang.Object actionOffset) Initializer for a CreateTriggerNode
private int[]	justTheRequiredColumns(int[] columnsArrary)
ConstantAction	makeConstantAction() Create the Constant information that will drive the guts of Execution.
void	printSubNodes(int depth) Prints the sub-nodes of this object.
boolean	referencesSessionSchema() Return true if the node references SESSION schema tables (temporary or permanent)
java.lang.String	statementToString()
java.lang.String	toString() Convert this object to a String.
private void	validateReferencesClause(DataDictionary dd)

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

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

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

executeSchemaName, executeStatementName, generate, getSPSName, lockTableForCompilation, makeResultDescription, needsSavepoint, 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, isInstanceOf, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeTableName, makeTableName, nodeHeader, orReliability, parseStatement, printLabel, 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

triggerName

private TableName triggerName

tableName

private TableName tableName

triggerEventMask

private int triggerEventMask

triggerCols

private ResultColumnList triggerCols

isBefore

private boolean isBefore

isRow

private boolean isRow

isEnabled

private boolean isEnabled

refClause

private java.util.List refClause

whenClause

private ValueNode whenClause

whenText

private java.lang.String whenText

whenOffset

private int whenOffset

actionNode

private StatementNode actionNode

actionText

private java.lang.String actionText

originalActionText

private java.lang.String originalActionText

actionOffset

private int actionOffset

triggerSchemaDescriptor

private SchemaDescriptor triggerSchemaDescriptor

compSchemaDescriptor

private SchemaDescriptor compSchemaDescriptor

referencedColInts

private int[] referencedColInts

referencedColsInTriggerAction

private int[] referencedColsInTriggerAction

triggerTableDescriptor

private TableDescriptor triggerTableDescriptor

actionCompSchemaId

private UUID actionCompSchemaId

oldTableName

private java.lang.String oldTableName

newTableName

private java.lang.String newTableName

oldTableInReferencingClause

private boolean oldTableInReferencingClause

newTableInReferencingClause

private boolean newTableInReferencingClause

OFFSET_COMPARATOR

private static final java.util.Comparator OFFSET_COMPARATOR

Comparator that can be used for sorting lists of FromBaseTables on the position they have in the SQL query string.

Constructor Detail

CreateTriggerNode

public CreateTriggerNode()

Method Detail

init

public void init(java.lang.Object triggerName,
                 java.lang.Object tableName,
                 java.lang.Object triggerEventMask,
                 java.lang.Object triggerCols,
                 java.lang.Object isBefore,
                 java.lang.Object isRow,
                 java.lang.Object isEnabled,
                 java.lang.Object refClause,
                 java.lang.Object whenClause,
                 java.lang.Object whenText,
                 java.lang.Object whenOffset,
                 java.lang.Object actionNode,
                 java.lang.Object actionText,
                 java.lang.Object actionOffset)
          throws StandardException

Initializer for a CreateTriggerNode

Specified by:

init in interface Node

Overrides:

init in class QueryTreeNode

Parameters:

triggerName - name of the trigger

tableName - name of the table which the trigger is declared upon

triggerEventMask - TriggerDescriptor.TRIGGER_EVENT_XXX

triggerCols - columns trigger is to fire upon. Valid for UPDATE case only.

isBefore - is before trigger (false for after)

isRow - true for row trigger, false for statement

isEnabled - true if enabled

refClause - the referencing clause

whenClause - the WHEN clause tree

whenText - the text of the WHEN clause

whenOffset - offset of start of WHEN clause

actionNode - the trigger action tree

actionText - the text of the trigger action

actionOffset - offset of start of action clause

Throws:

StandardException - Thrown on error

statementToString

public java.lang.String statementToString()

Specified by:

statementToString in class StatementNode

printSubNodes

public void printSubNodes(int depth)

Prints the sub-nodes of this object. See QueryTreeNode.java for how tree printing is supposed to work.

Overrides:

printSubNodes in class QueryTreeNode

Parameters:

depth - The depth of this node in the tree

bindStatement

public void bindStatement()
                   throws StandardException

Bind this CreateTriggerNode. This means doing any static error checking that can be done before actually creating the table.

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

bindReferencesClause

private boolean bindReferencesClause(DataDictionary dd)
                              throws StandardException

Throws:

StandardException

justTheRequiredColumns

private int[] justTheRequiredColumns(int[] columnsArrary)

forbidActionsOnGenCols

private void forbidActionsOnGenCols()
                             throws StandardException

Throws:

StandardException

equals

private boolean equals(java.lang.String left,
                       java.lang.String right)

checkInvalidTriggerReference

private void checkInvalidTriggerReference(java.lang.String tableName)
                                   throws StandardException

Throws:

StandardException

validateReferencesClause

private void validateReferencesClause(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

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 DDLStatementNode

Returns:

This object as a String