Apache Derby Database Engine and Embedded JDBC Driver 10.17.1.0 · org.apache.derby.iapi.sql.dictionary.ConstraintDescriptor

Modifier and Type	Field and Description
public static final int	ALL
private ColumnDescriptorList	colDL
pack-priv final UUID	constraintId
pack-priv final String	constraintName
private boolean	deferrable
public static final int	DISABLED
public static final int	ENABLED
private boolean	enforced
private boolean	initiallyDeferred
private final int[]	referencedColumns
private final SchemaDescriptor	schemaDesc
public static final int	SYSCONSTRAINTS_STATE_FIELD
pack-priv TableDescriptor	table

Access	Constructor and Description
pack-priv	ConstraintDescriptor(DataDictionary The data dictionary that this descriptor lives in dataDictionary, TableDescriptor The descriptor of the table the constraint is on table, String The name of the constraint. constraintName, boolean If the constraint can be deferred. deferrable, boolean If the constraint starts life deferred. initiallyDeferred, int[] columns that the constraint references referencedColumns, UUID UUID of constraint constraintId, SchemaDescriptor SchemaDescriptor schemaDesc, boolean Is the constraint enforced? enforced) Constructor for a ConstraintDescriptor

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: true/false areColumnsComparable(ColumnDescriptorList the columns to compare otherColumns) Indicates whether the column descriptor list is type comparable with the constraints columns.
public boolean	columnIntersects(int[] columns to check Note-- this is not a static method. columnArray) Does a column intersect with our referenced columns
public boolean	Returns: TRUE if the constraint is DEFERRABLE, FALSE if it is NOT DEFERRABLE. deferrable() Returns TRUE if the constraint is deferrable
pack-priv static boolean	Returns: true/false doColumnsIntersect(int[] the columns to compare. If null, asssumed to mean all columns otherColumns, int[] the columns referenced by the caller referencedColumns) Does a column in the input set intersect with our referenced columns?
public ConglomerateDescriptor	Returns: If the backing conglomerate for this constraint was a) dropped and b) shared by other constraints/indexes, then this method will return a ConglomerateDescriptor that describes what a new backing conglomerate must look like to stay "sharable" across the remaining constraints/indexes. It is then up to the caller to create a corresponding conglomerate. We don't create the conglomerate here because depending on who called us, it might not make sense to create it--ex. if we get here because of a DROP TABLE, the DropTable action doesn't need to create a new backing conglomerate since the table (and all of its constraints/indexes) are going to disappear anyway. drop(LanguageConnectionContext lcc, boolean clearDependencies) Drop the constraint.
public boolean	Returns: true/false enforced() Is this constraint enforced?
public String	Returns: char The provider's type. getClassType() Implements org.apache.derby.catalog.Dependable.getClassType. Get the provider's type.
public ColumnDescriptorList	Returns: the column descriptor list getColumnDescriptors() Get the column descriptors for all the columns referenced by this constraint.
public abstract UUID	getConglomerateId()
public String	Returns: A String containing the name of the constraint. getConstraintName() Gets the name of the constraint.
public String	Returns: The constraint text. getConstraintText() Get the text of the constraint.
public abstract int	Returns: An identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK). getConstraintType() Gets an identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK).
public DependableFinder	Returns: the stored form of this provider getDependableFinder() Implements org.apache.derby.catalog.Dependable.getDependableFinder. Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.
public String	getDescriptorName() Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorName.
public String	getDescriptorType() Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorType. Each descriptor must identify itself with its type; i.e index, check constraint whatever.
public int[]	getKeyColumns() Resolve For now the ConstraintDescriptor code stores the array of key columns in the field 'otherColumns'.
public UUID	Returns: The provider's UUID getObjectID() Implements org.apache.derby.catalog.Dependable.getObjectID. Get the provider's UUID
public String	Returns: String The name of this provider. getObjectName() Implements org.apache.derby.catalog.Dependable.getObjectName. Return the name of this Provider.
public int	Returns: the number of fks getReferenceCount() Get the number of enforced fks that reference this key.
public int[]	Returns: An array of column ids for those constraints that can be on columns (primary, unique key, referential constraints, and check constraints). For check and unique constraints, it returns an array of columns ids that are referenced in the constraint. For primary key and referential constraints, it returns an array of column ids for the columns in this table (i.e. the primary key columns for a primary key constraint, and the foreign key columns for a foreign key constraint. getReferencedColumns() Returns an array of column ids (i.e. ordinal positions) for the columns referenced in this table for a primary key, unique key, referential, or check constraint.
public SchemaDescriptor	Returns: SchemaDescriptor The SchemaDescriptor for this constraint. getSchemaDescriptor() Get the SchemaDescriptor for the schema that this constraint belongs to.
public TableDescriptor	Returns: the table descriptor getTableDescriptor() Get the table descriptor upon which this constraint is declared.
public UUID	Returns: The UUID of the table the constraint is on. getTableId() Gets the UUID of the table the constraint is on.
public UUID	Returns: The UUID of the constraint. getUUID() Implements abstract org.apache.derby.iapi.sql.dictionary.UniqueTupleDescriptor.getUUID. Gets the UUID of the constraint.
public abstract boolean	Returns: boolean Whether or not there is a backing index for this constraint. hasBackingIndex() Does this constraint have a backing index?
public boolean	Returns: TRUE if the constraint is initially DEFERRED, FALSE if the constraint is initially IMMEDIATE initiallyDeferred() Returns TRUE if the constraint is initially deferred
public boolean	Returns: false isReferenced() Is this constraint referenced?
public synchronized boolean	Returns: true if the dependent is currently valid isValid() Implements org.apache.derby.iapi.sql.depend.Dependent.isValid. Check that all of the dependent's dependencies are valid.
public void	makeInvalid(int The action causing the invalidation action, LanguageConnectionContext The LanguageConnectionContext lcc) Implements org.apache.derby.iapi.sql.depend.Dependent.makeInvalid. Mark the dependent as invalid (due to at least one of its dependencies being invalid).
public abstract boolean	Returns: true/false needsToFire(int the type of DML (StatementType.INSERT\|StatementType.UPDATE\|StatementType.DELETE) stmtType, int[] the columns modified, or null for all modifiedCols) Does this constraint need to fire on this type of DML?
public void	prepareToInvalidate(Provider the provider p, int The action causing the invalidation action, LanguageConnectionContext The LanguageConnectionContext lcc) Implements org.apache.derby.iapi.sql.depend.Dependent.prepareToInvalidate. Prepare to mark the dependent as invalid (due to at least one of its dependencies being invalid).
public void	setDeferrable(boolean b)
public void	setEnforced(boolean b)
public void	setInitiallyDeferred(boolean b)
public String	Returns: A String representation of this ColumnDescriptor toString() Overrides java.lang.Object.toString. Convert the ColumnDescriptor to a String.

ALL	back to summary
public static final int ALL

colDL	back to summary
private ColumnDescriptorList colDL

constraintId	back to summary
pack-priv final UUID constraintId

constraintName	back to summary
pack-priv final String constraintName

deferrable	back to summary
private boolean deferrable

DISABLED	back to summary
public static final int DISABLED

ENABLED	back to summary
public static final int ENABLED

enforced	back to summary
private boolean enforced

initiallyDeferred	back to summary
private boolean initiallyDeferred

referencedColumns	back to summary
private final int[] referencedColumns

schemaDesc	back to summary
private final SchemaDescriptor schemaDesc

SYSCONSTRAINTS_STATE_FIELD	back to summary
public static final int SYSCONSTRAINTS_STATE_FIELD

table	back to summary
pack-priv TableDescriptor table

ConstraintDescriptor	back to summary
pack-priv ConstraintDescriptor(DataDictionary dataDictionary, TableDescriptor table, String constraintName, boolean deferrable, boolean initiallyDeferred, int[] referencedColumns, UUID constraintId, SchemaDescriptor schemaDesc, boolean enforced) Constructor for a ConstraintDescriptor Parameters dataDictionary:DataDictionary The data dictionary that this descriptor lives in table:TableDescriptor The descriptor of the table the constraint is on constraintName:String The name of the constraint. deferrable:boolean If the constraint can be deferred. initiallyDeferred:boolean If the constraint starts life deferred. referencedColumns:int[] columns that the constraint references constraintId:UUID UUID of constraint schemaDesc:SchemaDescriptor SchemaDescriptor enforced:boolean Is the constraint enforced?

Method Detail

areColumnsComparable	back to summary
public boolean areColumnsComparable(ColumnDescriptorList otherColumns) throws StandardException Indicates whether the column descriptor list is type comparable with the constraints columns. The types have to be identical AND in the same order to succeed. Parameters otherColumns:ColumnDescriptorList the columns to compare Returns:boolean true/false Exceptions StandardException: on error

areColumnsComparable

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public boolean areColumnsComparable(ColumnDescriptorList otherColumns) throws StandardException

Indicates whether the column descriptor list is type comparable with the constraints columns. The types have to be identical AND in the same order to succeed.

Parameters

otherColumns:ColumnDescriptorList: the columns to compare

Returns:boolean

true/false

Exceptions

StandardException:: on error

columnIntersects	back to summary
public boolean columnIntersects(int[] columnArray) Does a column intersect with our referenced columns Parameters columnArray:int[] columns to check Note-- this is not a static method.

columnIntersects

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public boolean columnIntersects(int[] columnArray)

Does a column intersect with our referenced columns

Parameters

columnArray:int[]: columns to check Note-- this is not a static method.

deferrable	back to summary
public boolean deferrable() Returns TRUE if the constraint is deferrable Returns:boolean TRUE if the constraint is DEFERRABLE, FALSE if it is NOT DEFERRABLE.

deferrable

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public boolean deferrable()

Returns TRUE if the constraint is deferrable

Returns:boolean: TRUE if the constraint is DEFERRABLE, FALSE if it is NOT DEFERRABLE.

doColumnsIntersect	back to summary
pack-priv static boolean doColumnsIntersect(int[] otherColumns, int[] referencedColumns) Does a column in the input set intersect with our referenced columns? Parameters otherColumns:int[] the columns to compare. If null, asssumed to mean all columns referencedColumns:int[] the columns referenced by the caller Returns:boolean true/false

doColumnsIntersect

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pack-priv static boolean doColumnsIntersect(int[] otherColumns, int[] referencedColumns)

Does a column in the input set intersect with our referenced columns?

Parameters

otherColumns:int[]: the columns to compare. If null, asssumed to mean all columns
referencedColumns:int[]: the columns referenced by the caller

Returns:boolean

true/false

drop	back to summary
public ConglomerateDescriptor drop(LanguageConnectionContext lcc, boolean clearDependencies) throws StandardException Drop the constraint. Clears dependencies, drops the backing index and removes the constraint from the list on the table descriptor. Does NOT do an dm.invalidateFor() Returns:ConglomerateDescriptor If the backing conglomerate for this constraint was a) dropped and b) shared by other constraints/indexes, then this method will return a ConglomerateDescriptor that describes what a new backing conglomerate must look like to stay "sharable" across the remaining constraints/indexes. It is then up to the caller to create a corresponding conglomerate. We don't create the conglomerate here because depending on who called us, it might not make sense to create it--ex. if we get here because of a DROP TABLE, the DropTable action doesn't need to create a new backing conglomerate since the table (and all of its constraints/indexes) are going to disappear anyway.

drop

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public ConglomerateDescriptor drop(LanguageConnectionContext lcc, boolean clearDependencies) throws StandardException

Drop the constraint. Clears dependencies, drops the backing index and removes the constraint from the list on the table descriptor. Does NOT do an dm.invalidateFor()

Returns:ConglomerateDescriptor: If the backing conglomerate for this constraint was a) dropped and b) shared by other constraints/indexes, then this method will return a ConglomerateDescriptor that describes what a new backing conglomerate must look like to stay "sharable" across the remaining constraints/indexes. It is then up to the caller to create a corresponding conglomerate. We don't create the conglomerate here because depending on who called us, it might not make sense to create it--ex. if we get here because of a DROP TABLE, the DropTable action doesn't need to create a new backing conglomerate since the table (and all of its constraints/indexes) are going to disappear anyway.

enforced	back to summary
public boolean enforced() Is this constraint enforced? Returns:boolean true/false

enforced

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public boolean enforced()

Is this constraint enforced?

Returns:boolean: true/false

getClassType	back to summary
public String getClassType() Implements org.apache.derby.catalog.Dependable.getClassType. Get the provider's type. Returns:String char The provider's type.

getClassType

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public String getClassType()

Implements org.apache.derby.catalog.Dependable.getClassType.

Get the provider's type.

Returns:String: char The provider's type.

getColumnDescriptors	back to summary
public ColumnDescriptorList getColumnDescriptors() throws StandardException Get the column descriptors for all the columns referenced by this constraint. Returns:ColumnDescriptorList the column descriptor list Exceptions StandardException: on error

getColumnDescriptors

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public ColumnDescriptorList getColumnDescriptors() throws StandardException

Get the column descriptors for all the columns referenced by this constraint.

Returns:ColumnDescriptorList

the column descriptor list

Exceptions

StandardException:: on error

getConglomerateId	back to summary
public abstract UUID getConglomerateId()

getConstraintName	back to summary
public String getConstraintName() Gets the name of the constraint. Returns:String A String containing the name of the constraint.

getConstraintName

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public String getConstraintName()

Gets the name of the constraint.

Returns:String: A String containing the name of the constraint.

getConstraintText	back to summary
public String getConstraintText() Get the text of the constraint. (Only non-null/meaningful for check constraints.) Returns:String The constraint text.

getConstraintText

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public String getConstraintText()

Get the text of the constraint. (Only non-null/meaningful for check constraints.)

Returns:String: The constraint text.

getConstraintType	back to summary
public abstract int getConstraintType() Gets an identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK). Returns:int An identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK).

getConstraintType

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public abstract int getConstraintType()

Gets an identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK).

Returns:int: An identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK).

getDependableFinder back to summary

getDependableFinder	back to summary
public DependableFinder getDependableFinder() Implements org.apache.derby.catalog.Dependable.getDependableFinder. Doc from org.apache.derby.catalog.Dependable.getDependableFinder. Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable. Returns:DependableFinder the stored form of this provider See Also `Dependable#getDependableFinder`

public DependableFinder getDependableFinder()

Implements org.apache.derby.catalog.Dependable.getDependableFinder.

Doc from org.apache.derby.catalog.Dependable.getDependableFinder.

Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.

Returns:DependableFinder: the stored form of this provider
See Also: Dependable#getDependableFinder

getDescriptorName back to summary

getDescriptorName	back to summary
public String getDescriptorName() Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorName. Annotations @Override See Also `TupleDescriptor#getDescriptorName`

public String getDescriptorName()

Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorName.

Annotations

@Override

See Also

TupleDescriptor#getDescriptorName

getDescriptorType	back to summary
public String getDescriptorType() Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorType. Doc from org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorType. Each descriptor must identify itself with its type; i.e index, check constraint whatever. Annotations @Override

getDescriptorType

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public String getDescriptorType()

Overrides org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorType.

Doc from org.apache.derby.iapi.sql.dictionary.TupleDescriptor.getDescriptorType.

Each descriptor must identify itself with its type; i.e index, check constraint whatever.

Annotations

@Override

getKeyColumns back to summary

getKeyColumns	back to summary
public int[] getKeyColumns() Resolve For now the ConstraintDescriptor code stores the array of key columns in the field 'otherColumns'. Jerry plans to re-organize things. For now to minimize his rototill I've implemented this function on the old structures. All new code should use getKeyColumns to get a constraint's key columns. See Also `org.apache.derby.iapi.sql.dictionary.KeyConstraintDescriptor#getKeyColumns`

public int[] getKeyColumns()

Resolve

For now the ConstraintDescriptor code stores the array of key columns in the field 'otherColumns'. Jerry plans to re-organize things. For now to minimize his rototill I've implemented this function on the old structures. All new code should use getKeyColumns to get a constraint's key columns.

See Also: org.apache.derby.iapi.sql.dictionary.KeyConstraintDescriptor#getKeyColumns

getObjectID	back to summary
public UUID getObjectID() Implements org.apache.derby.catalog.Dependable.getObjectID. Get the provider's UUID Returns:UUID The provider's UUID

getObjectID

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public UUID getObjectID()

Implements org.apache.derby.catalog.Dependable.getObjectID.

Get the provider's UUID

Returns:UUID: The provider's UUID

getObjectName	back to summary
public String getObjectName() Implements org.apache.derby.catalog.Dependable.getObjectName. Return the name of this Provider. (Useful for errors.) Returns:String String The name of this provider.

getObjectName

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public String getObjectName()

Implements org.apache.derby.catalog.Dependable.getObjectName.

Return the name of this Provider. (Useful for errors.)

Returns:String: String The name of this provider.

getReferenceCount	back to summary
public int getReferenceCount() Get the number of enforced fks that reference this key. Overriden by ReferencedKeyConstraints. Returns:int the number of fks

getReferenceCount

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public int getReferenceCount()

Get the number of enforced fks that reference this key. Overriden by ReferencedKeyConstraints.

Returns:int: the number of fks

getReferencedColumns	back to summary
public int[] getReferencedColumns() Returns an array of column ids (i.e. ordinal positions) for the columns referenced in this table for a primary key, unique key, referential, or check constraint. Returns:int[] An array of column ids for those constraints that can be on columns (primary, unique key, referential constraints, and check constraints). For check and unique constraints, it returns an array of columns ids that are referenced in the constraint. For primary key and referential constraints, it returns an array of column ids for the columns in this table (i.e. the primary key columns for a primary key constraint, and the foreign key columns for a foreign key constraint.

getReferencedColumns

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public int[] getReferencedColumns()

Returns an array of column ids (i.e. ordinal positions) for the columns referenced in this table for a primary key, unique key, referential, or check constraint.

Returns:int[]: An array of column ids for those constraints that can be on columns (primary, unique key, referential constraints, and check constraints). For check and unique constraints, it returns an array of columns ids that are referenced in the constraint. For primary key and referential constraints, it returns an array of column ids for the columns in this table (i.e. the primary key columns for a primary key constraint, and the foreign key columns for a foreign key constraint.

getSchemaDescriptor	back to summary
public SchemaDescriptor getSchemaDescriptor() Get the SchemaDescriptor for the schema that this constraint belongs to. Returns:SchemaDescriptor SchemaDescriptor The SchemaDescriptor for this constraint.

getSchemaDescriptor

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public SchemaDescriptor getSchemaDescriptor()

Get the SchemaDescriptor for the schema that this constraint belongs to.

Returns:SchemaDescriptor: SchemaDescriptor The SchemaDescriptor for this constraint.

getTableDescriptor	back to summary
public TableDescriptor getTableDescriptor() Get the table descriptor upon which this constraint is declared. Returns:TableDescriptor the table descriptor

getTableDescriptor

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public TableDescriptor getTableDescriptor()

Get the table descriptor upon which this constraint is declared.

Returns:TableDescriptor: the table descriptor

getTableId	back to summary
public UUID getTableId() Gets the UUID of the table the constraint is on. Returns:UUID The UUID of the table the constraint is on.

getTableId

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public UUID getTableId()

Gets the UUID of the table the constraint is on.

Returns:UUID: The UUID of the table the constraint is on.

getUUID	back to summary
public UUID getUUID() Implements abstract org.apache.derby.iapi.sql.dictionary.UniqueTupleDescriptor.getUUID. Gets the UUID of the constraint. Returns:UUID The UUID of the constraint.

getUUID

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public UUID getUUID()

Implements abstract org.apache.derby.iapi.sql.dictionary.UniqueTupleDescriptor.getUUID.

Gets the UUID of the constraint.

Returns:UUID: The UUID of the constraint.

hasBackingIndex	back to summary
public abstract boolean hasBackingIndex() Does this constraint have a backing index? Returns:boolean boolean Whether or not there is a backing index for this constraint.

hasBackingIndex

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public abstract boolean hasBackingIndex()

Does this constraint have a backing index?

Returns:boolean: boolean Whether or not there is a backing index for this constraint.

initiallyDeferred	back to summary
public boolean initiallyDeferred() Returns TRUE if the constraint is initially deferred Returns:boolean TRUE if the constraint is initially DEFERRED, FALSE if the constraint is initially IMMEDIATE

initiallyDeferred

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public boolean initiallyDeferred()

Returns TRUE if the constraint is initially deferred

Returns:boolean: TRUE if the constraint is initially DEFERRED, FALSE if the constraint is initially IMMEDIATE

isReferenced	back to summary
public boolean isReferenced() Is this constraint referenced? Return false. Overridden by ReferencedKeyConstraints. Returns:boolean false

isReferenced

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public boolean isReferenced()

Is this constraint referenced? Return false. Overridden by ReferencedKeyConstraints.

Returns:boolean: false

isValid	back to summary
public synchronized boolean isValid() Implements org.apache.derby.iapi.sql.depend.Dependent.isValid. Check that all of the dependent's dependencies are valid. Returns:boolean true if the dependent is currently valid

isValid

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public synchronized boolean isValid()

Implements org.apache.derby.iapi.sql.depend.Dependent.isValid.

Check that all of the dependent's dependencies are valid.

Returns:boolean: true if the dependent is currently valid

makeInvalid	back to summary
public void makeInvalid(int action, LanguageConnectionContext lcc) throws StandardException Implements org.apache.derby.iapi.sql.depend.Dependent.makeInvalid. Mark the dependent as invalid (due to at least one of its dependencies being invalid). Always an error for a constraint -- should never have gotten here. Parameters action:int The action causing the invalidation lcc:LanguageConnectionContext Doc from org.apache.derby.iapi.sql.depend.Dependent.makeInvalid. The LanguageConnectionContext Exceptions StandardException: thrown if called in sanity mode

makeInvalid

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public void makeInvalid(int action, LanguageConnectionContext lcc) throws StandardException

Implements org.apache.derby.iapi.sql.depend.Dependent.makeInvalid.

Mark the dependent as invalid (due to at least one of its dependencies being invalid). Always an error for a constraint -- should never have gotten here.

Parameters

action:int

The action causing the invalidation

lcc:LanguageConnectionContext

Doc from org.apache.derby.iapi.sql.depend.Dependent.makeInvalid.

The LanguageConnectionContext

Exceptions

StandardException:: thrown if called in sanity mode

needsToFire	back to summary
public abstract boolean needsToFire(int stmtType, int[] modifiedCols) Does this constraint need to fire on this type of DML? Parameters stmtType:int the type of DML (StatementType.INSERT\|StatementType.UPDATE\|StatementType.DELETE) modifiedCols:int[] the columns modified, or null for all Returns:boolean true/false

needsToFire

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public abstract boolean needsToFire(int stmtType, int[] modifiedCols)

Does this constraint need to fire on this type of DML?

Parameters

stmtType:int: the type of DML (StatementType.INSERT|StatementType.UPDATE|StatementType.DELETE)
modifiedCols:int[]: the columns modified, or null for all

Returns:boolean

true/false

prepareToInvalidate	back to summary
public void prepareToInvalidate(Provider p, int action, LanguageConnectionContext lcc) throws StandardException Implements org.apache.derby.iapi.sql.depend.Dependent.prepareToInvalidate. Prepare to mark the dependent as invalid (due to at least one of its dependencies being invalid). Parameters p:Provider the provider action:int The action causing the invalidation lcc:LanguageConnectionContext Doc from org.apache.derby.iapi.sql.depend.Dependent.prepareToInvalidate. The LanguageConnectionContext Exceptions StandardException: thrown if unable to make it invalid

prepareToInvalidate

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public void prepareToInvalidate(Provider p, int action, LanguageConnectionContext lcc) throws StandardException

Implements org.apache.derby.iapi.sql.depend.Dependent.prepareToInvalidate.

Prepare to mark the dependent as invalid (due to at least one of its dependencies being invalid).

Parameters

p:Provider

the provider

action:int

The action causing the invalidation

lcc:LanguageConnectionContext

Doc from org.apache.derby.iapi.sql.depend.Dependent.prepareToInvalidate.

The LanguageConnectionContext

Exceptions

StandardException:: thrown if unable to make it invalid

setDeferrable	back to summary
public void setDeferrable(boolean b)

setEnforced	back to summary
public void setEnforced(boolean b)

setInitiallyDeferred	back to summary
public void setInitiallyDeferred(boolean b)

toString

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public String toString()

Overrides java.lang.Object.toString.

Convert the ColumnDescriptor to a String.

Returns:String

A String representation of this ColumnDescriptor

Annotations

@Override

public abstract Class ConstraintDescriptor

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail