/*
Derby - Class org.apache.derby.iapi.sql.dictionary.DataDescriptorGenerator
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derby.iapi.sql.dictionary;
import java.sql.Timestamp;
import org.apache.derby.catalog.ReferencedColumns;
import org.apache.derby.catalog.UUID;
import org.apache.derby.catalog.types.ReferencedColumnsDescriptorImpl;
import org.apache.derby.iapi.error.StandardException;
import org.apache.derby.iapi.services.io.FormatableBitSet;
import org.apache.derby.iapi.services.monitor.Monitor;
import org.apache.derby.shared.common.sanity.SanityManager;
import org.apache.derby.iapi.services.uuid.UUIDFactory;
import org.apache.derby.iapi.types.DataTypeDescriptor;
/**
* This is an implementation of the DataDescriptorGenerator interface
* that lives in the DataDictionary protocol. See that interface for
* a description of what this class is supposed to do.
*
* @version 0.1
*/
public class DataDescriptorGenerator
{
private UUIDFactory uuidf;
protected final DataDictionary dataDictionary; // the data dictionary that this generator operates on
/**
* Make a generator. Specify the data dictionary that it operates on.
*
* @param dataDictionary the data dictionary that this generator makes objects for
*/
public DataDescriptorGenerator( DataDictionary dataDictionary )
{
this.dataDictionary = dataDictionary;
}
/**
* Create a descriptor for the named schema with a null UUID.
*
* @param schemaName The name of the schema we're interested in.
* If the name is NULL, get the descriptor for the
* current schema.
* @param aid The authorization ID associated with the schema.
* The owner of the schema.
*
* @param oid The object ID
*
* @return The descriptor for the schema.
* @exception StandardException Thrown on failure
*/
public SchemaDescriptor newSchemaDescriptor(String schemaName,
String aid, UUID oid)
throws StandardException
{
return new SchemaDescriptor(
dataDictionary, schemaName, aid, oid,
dataDictionary.isSystemSchemaName(schemaName));
}
/**
* Create a descriptor for the named table within the given schema.
* If the schema parameter is NULL, it creates a schema descriptor
* using the current default schema.
*
* @param tableName The name of the table to get the descriptor for
* @param schema The descriptor for the schema the table lives in.
* If null, use the current (default) schema.
* @param tableType The type of the table: base table or view.
* @param lockGranularity The lock granularity.
*
* @return The descriptor for the table.
*/
public TableDescriptor newTableDescriptor
(
String tableName,
SchemaDescriptor schema,
int tableType,
char lockGranularity
)
{
return new TableDescriptor
(dataDictionary, tableName, schema, tableType, lockGranularity);
}
/**
* Create a descriptor for the temporary table within the given schema.
*
* @param tableName The name of the temporary table to get the descriptor for
* @param schema The descriptor for the schema the table lives in.
* @param tableType The type of the table: temporary table
* @param onCommitDeleteRows If true, on commit delete rows else on commit preserve rows of temporary table.
* @param onRollbackDeleteRows If true, on rollback, delete rows from temp tables which were logically modified. true is the only supported value
*
* @return The descriptor for the table.
*/
public TableDescriptor newTableDescriptor
(
String tableName,
SchemaDescriptor schema,
int tableType,
boolean onCommitDeleteRows,
boolean onRollbackDeleteRows
)
{
return new TableDescriptor
(dataDictionary, tableName, schema, tableType, onCommitDeleteRows, onRollbackDeleteRows);
}
/**
* Create a viewDescriptor for the view with the given UUID.
*
* @param viewID the UUID for the view.
* @param viewName the name of the view
* @param viewText the text of the view's query.
* @param checkOption int for check option type
* @param compSchemaId the UUID of the schema this was compiled in
*
* @return A descriptor for the view
*/
public ViewDescriptor newViewDescriptor(UUID viewID,
String viewName, String viewText, int checkOption,
UUID compSchemaId)
{
return new ViewDescriptor(dataDictionary, viewID, viewName,
viewText, checkOption, compSchemaId);
}
/**
* @see DataDescriptorGenerator#newUniqueConstraintDescriptor
*/
public ReferencedKeyConstraintDescriptor newUniqueConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
int[] referencedColumns,
UUID constraintId,
UUID indexId,
SchemaDescriptor schemaDesc,
boolean isEnabled,
int referenceCount
)
{
return new ReferencedKeyConstraintDescriptor(DataDictionary.UNIQUE_CONSTRAINT,
dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
referencedColumns, constraintId,
indexId, schemaDesc, isEnabled, referenceCount);
}
/**
* @see DataDescriptorGenerator#newPrimaryKeyConstraintDescriptor
*/
public ReferencedKeyConstraintDescriptor newPrimaryKeyConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
int[] referencedColumns,
UUID constraintId,
UUID indexId,
SchemaDescriptor schemaDesc,
boolean isEnabled,
int referenceCount
)
{
return new ReferencedKeyConstraintDescriptor(DataDictionary.PRIMARYKEY_CONSTRAINT,
dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
referencedColumns, constraintId,
indexId, schemaDesc, isEnabled, referenceCount);
}
/**
* @see DataDescriptorGenerator#newForeignKeyConstraintDescriptor
*/
public ForeignKeyConstraintDescriptor newForeignKeyConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
int[] fkColumns,
UUID constraintId,
UUID indexId,
SchemaDescriptor schemaDesc,
ReferencedKeyConstraintDescriptor referencedConstraintDescriptor,
boolean isEnabled,
int raDeleteRule,
int raUpdateRule
)
{
return new ForeignKeyConstraintDescriptor(dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
fkColumns, constraintId,
indexId, schemaDesc,
referencedConstraintDescriptor, isEnabled, raDeleteRule, raUpdateRule);
}
/**
* @see DataDescriptorGenerator#newForeignKeyConstraintDescriptor
*/
public ForeignKeyConstraintDescriptor newForeignKeyConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
int[] fkColumns,
UUID constraintId,
UUID indexId,
SchemaDescriptor schemaDesc,
UUID referencedConstraintId,
boolean isEnabled,
int raDeleteRule,
int raUpdateRule
)
{
return new ForeignKeyConstraintDescriptor(dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
fkColumns, constraintId,
indexId, schemaDesc,
referencedConstraintId, isEnabled, raDeleteRule, raUpdateRule);
}
/**
* @see DataDescriptorGenerator#newCheckConstraintDescriptor
*/
public CheckConstraintDescriptor newCheckConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
UUID constraintId,
String constraintText,
ReferencedColumns referencedColumns,
SchemaDescriptor schemaDesc,
boolean isEnabled
)
{
return new CheckConstraintDescriptor(dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
constraintId,
constraintText, referencedColumns, schemaDesc, isEnabled);
}
public CheckConstraintDescriptor newCheckConstraintDescriptor(
TableDescriptor table,
String constraintName,
boolean deferrable,
boolean initiallyDeferred,
UUID constraintId,
String constraintText,
int[] refCols,
SchemaDescriptor schemaDesc,
boolean isEnabled
)
{
ReferencedColumns referencedColumns = new ReferencedColumnsDescriptorImpl(refCols);
return new CheckConstraintDescriptor(dataDictionary, table, constraintName,
deferrable, initiallyDeferred,
constraintId,
constraintText, referencedColumns, schemaDesc, isEnabled);
}
/**
* Create a conglomerate descriptor for the given conglomerate id.
*
* @param conglomerateId The identifier for the conglomerate
* we're interested in
* @param name The name of the conglomerate, if any
* @param indexable TRUE means the conglomerate is indexable,
* FALSE means it isn't
* @param indexRowGenerator The IndexRowGenerator for the conglomerate,
* null if it's a heap
* @param isConstraint TRUE means the conglomerate is an index backing
* up a constraint, FALSE means it isn't
*
* @param uuid UUID for this conglomerate
* @param tableID UUID for the table that this conglomerate belongs to
* @param schemaID UUID for the schema that conglomerate belongs to
*
* @return A ConglomerateDescriptor describing the
* conglomerate.
*/
public ConglomerateDescriptor newConglomerateDescriptor(
long conglomerateId,
String name,
boolean indexable,
IndexRowGenerator indexRowGenerator,
boolean isConstraint,
UUID uuid,
UUID tableID,
UUID schemaID
)
{
return new ConglomerateDescriptor(dataDictionary,
conglomerateId,
name,
indexable,
indexRowGenerator,
isConstraint,
uuid,
tableID,
schemaID);
}
/**
* Create a new trigger descriptor.
*
* @param sd the schema descriptor for this trigger
* @param uuid the trigger id
* @param name the trigger name
* @param eventMask TriggerDescriptor.TRIGGER_EVENT_XXXX
* @param isBefore is this a before (as opposed to after) trigger
* @param isRow is this a row trigger or statement trigger
* @param isEnabled is this trigger enabled or disabled
* @param td the table upon which this trigger is defined
* @param whenSPSId the sps id for the when clause (may be null)
* @param actionSPSId the spsid for the trigger action (may be null)
* @param creationTimestamp when was this trigger created?
* @param referencedCols what columns does this trigger reference (may be null)
* @param referencedColsInTriggerAction what columns does the trigger
* action reference through old/new transition variables
* (may be null)
* @param triggerDefinition The original user text of the trigger action
* @param referencingOld whether or not OLD appears in REFERENCING clause
* @param referencingNew whether or not NEW appears in REFERENCING clause
* @param oldReferencingName old referencing table name, if any, that appears in REFERCING clause
* @param newReferencingName new referencing table name, if any, that appears in REFERCING clause
* @param whenClauseText the SQL text of the WHEN clause (may be null)
* @return a trigger descriptor
*
* @exception StandardException on error
*/
public TriggerDescriptor newTriggerDescriptor
(
SchemaDescriptor sd,
UUID uuid,
String name,
int eventMask,
boolean isBefore,
boolean isRow,
boolean isEnabled,
TableDescriptor td,
UUID whenSPSId,
UUID actionSPSId,
Timestamp creationTimestamp,
int[] referencedCols,
int[] referencedColsInTriggerAction,
String triggerDefinition,
boolean referencingOld,
boolean referencingNew,
String oldReferencingName,
String newReferencingName,
String whenClauseText
) throws StandardException
{
return new TriggerDescriptor(
dataDictionary,
sd,
uuid,
name,
eventMask,
isBefore,
isRow,
isEnabled,
td,
whenSPSId,
actionSPSId,
creationTimestamp,
referencedCols,
referencedColsInTriggerAction,
triggerDefinition,
referencingOld,
referencingNew,
oldReferencingName,
newReferencingName,
whenClauseText
);
}
/*
get a UUIDFactory. This uses the Monitor to get one the
first time and holds onto it for later.
*/
protected UUIDFactory getUUIDFactory()
{
if (uuidf == null)
uuidf = Monitor.getMonitor().getUUIDFactory();
return uuidf;
}
/**
* Create a new {@code FileInfoDescriptor} using the supplied arguments.
*
* id unique id to be used for the new file descriptor
* sd schema of the new file to be stored in the database
* SQLName the SQL name of the new schema object representing the file
* generationID version numberof the file the descriptor describes
*
* @return the newly created file info descriptor
*/
public FileInfoDescriptor newFileInfoDescriptor(
UUID id,
SchemaDescriptor sd,
String sqlName,
long generationId
)
{
if (SanityManager.DEBUG) {
SanityManager.ASSERT(id != null);
}
return new FileInfoDescriptor(
dataDictionary, id, sd, sqlName, generationId);
}
public UserDescriptor newUserDescriptor
(
String userName,
String hashingScheme,
char[] password,
Timestamp lastModified
)
{
return new UserDescriptor( dataDictionary, userName, hashingScheme, password, lastModified );
}
public TablePermsDescriptor newTablePermsDescriptor( TableDescriptor td,
String selectPerm,
String deletePerm,
String insertPerm,
String updatePerm,
String referencesPerm,
String triggerPerm,
String grantor)
throws StandardException
{
if( "N".equals( selectPerm) && "N".equals( deletePerm) && "N".equals( insertPerm)
&& "N".equals( updatePerm) && "N".equals( referencesPerm) && "N".equals( triggerPerm))
return null;
return new TablePermsDescriptor( dataDictionary,
(String) null,
grantor,
td.getUUID(),
selectPerm,
deletePerm,
insertPerm,
updatePerm,
referencesPerm,
triggerPerm);
}
/**
* Manufacture a new ColPermsDescriptor.
*
* @param td The descriptor of the table.
* @param type The action type:
*
*- "s" - select without grant
*
- "S" - select with grant
*
- "u" - update without grant
*
- "U" - update with grant
*
- "r" - references without grant
*
- "R" - references with grant
*
* @param columns the set of columns
*/
public ColPermsDescriptor newColPermsDescriptor( TableDescriptor td,
String type,
FormatableBitSet columns,
String grantor) throws StandardException
{
return new ColPermsDescriptor( dataDictionary,
(String) null,
grantor,
td.getUUID(),
type,
columns);
}
/**
* Create a new routine permissions descriptor
*
* @param ad The routine's alias descriptor
* @param grantor
*/
public RoutinePermsDescriptor newRoutinePermsDescriptor( AliasDescriptor ad, String grantor)
throws StandardException
{
return new RoutinePermsDescriptor( dataDictionary,
(String) null,
grantor,
ad.getUUID());
}
/**
* Create a new role grant descriptor
*
* @param uuid unique identifier for this role grant descriptor in
* time and space
* @param roleName the name of the role for which a new descriptor
* is created
* @param grantee authorization identifier of grantee
* @param grantor authorization identifier of grantor
* @param withadminoption if true, WITH ADMIN OPTION is set for
* this descriptor
* @param isDef if true, this descriptor represents a role
* definition, otherwise it represents a grant.
*/
public RoleGrantDescriptor newRoleGrantDescriptor(UUID uuid,
String roleName,
String grantee,
String grantor,
boolean withadminoption,
boolean isDef)
throws StandardException
{
return new RoleGrantDescriptor(dataDictionary,
uuid,
roleName,
grantee,
grantor,
withadminoption,
isDef);
}
/**
* Create a new sequence descriptor
* @param uuid
* @param sequenceName
* @return SequenceDescriptor
*/
public SequenceDescriptor newSequenceDescriptor(
SchemaDescriptor sd,
UUID uuid,
String sequenceName,
DataTypeDescriptor dataType,
Long currentValue,
long startValue,
long minimumValue,
long maximumValue,
long increment,
boolean cycle) {
return new SequenceDescriptor(
dataDictionary,
sd,
uuid,
sequenceName,
dataType,
currentValue,
startValue,
minimumValue,
maximumValue,
increment,
cycle);
}
public PermDescriptor newPermDescriptor(
UUID uuid,
String objectType,
UUID permObjectId,
String permission,
String grantor,
String grantee,
boolean grantable) {
return new PermDescriptor(dataDictionary,
uuid,
objectType,
permObjectId,
permission,
grantor,
grantee,
grantable);
}
}
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