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org.apache.derby.iapi.sql.dictionary
Class CheckConstraintDescriptor  

java.lang.Object
  org.apache.derby.iapi.sql.dictionary.TupleDescriptor
      org.apache.derby.iapi.sql.dictionary.ConstraintDescriptor
          org.apache.derby.iapi.sql.dictionary.CheckConstraintDescriptor

All Implemented Interfaces:

org.apache.derby.catalog.Dependable, org.apache.derby.iapi.sql.depend.Dependent, org.apache.derby.iapi.sql.depend.Provider, UniqueTupleDescriptor

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public class CheckConstraintDescriptor

extends ConstraintDescriptor

This class represents a check constraint descriptor.

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Field Summary
(package private)  java.lang.String	constraintText
(package private)  org.apache.derby.catalog.ReferencedColumns	referencedColumns

 

Fields inherited from class org.apache.derby.iapi.sql.dictionary.ConstraintDescriptor

ALL, colDL, constraintId, constraintName, deferrable, DISABLED, ENABLED, initiallyDeferred, isEnabled, schemaDesc, SYSCONSTRAINTS_STATE_FIELD, table

 

Fields inherited from class org.apache.derby.iapi.sql.dictionary.TupleDescriptor

COLUMN_LIST, CONGLOMERATE_LIST, CONSTRAINT_LIST, TRIGGER_LIST

 

Fields inherited from interface org.apache.derby.catalog.Dependable

ALIAS, COLUMNS_IN_TABLE, CONGLOMERATE, CONSTRAINT, DEFAULT, FILE, HEAP, INDEX, PREPARED_STATEMENT, SCHEMA, STORED_PREPARED_STATEMENT, TABLE, TRIGGER, VIEW

 

Constructor Summary
(package private)	CheckConstraintDescriptor(DataDictionary dataDictionary, TableDescriptor table, java.lang.String constraintName, boolean deferrable, boolean initiallyDeferred, org.apache.derby.catalog.UUID constraintId, java.lang.String constraintText, org.apache.derby.catalog.ReferencedColumns referencedColumns, SchemaDescriptor schemaDesc, boolean isEnabled)

 

Method Summary
org.apache.derby.catalog.UUID	getConglomerateId()           Get the UUID of the backing index, if one exists.
java.lang.String	getConstraintText()           Get the text of the constraint.
int	getConstraintType()           Gets an identifier telling what type of descriptor it is (UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK).
int[]	getReferencedColumns()           Get the referenced columns as an int[] of column ids.
org.apache.derby.catalog.ReferencedColumns	getReferencedColumnsDescriptor()           Get the ReferencedColumns.
boolean	hasBackingIndex()           Does this constraint have a backing index?
boolean	needsToFire(int stmtType, int[] modifiedCols)           Does this constraint need to fire on this type of DML? For a check constraint, all inserts, and appropriate updates
void	setReferencedColumnsDescriptor(org.apache.derby.catalog.ReferencedColumns rcd)           Set the ReferencedColumns; used in drop column
java.lang.String	toString()           Convert the CheckConstraintDescriptor to a String.

 

Methods inherited from class org.apache.derby.iapi.sql.dictionary.ConstraintDescriptor

areColumnsComparable, columnIntersects, deferrable, doColumnsIntersect, getClassType, getColumnDescriptors, getConstraintName, getDependableFinder, getDescriptorName, getDescriptorType, getKeyColumns, getObjectID, getObjectName, getReferenceCount, getSchemaDescriptor, getTableDescriptor, getTableId, getUUID, initiallyDeferred, isEnabled, isReferenced, isValid, makeInvalid, makeValid, prepareToInvalidate, setConstraintId, setDisabled, setEnabled

 

Methods inherited from class org.apache.derby.iapi.sql.dictionary.TupleDescriptor

getColumnDependableFinder, getDataDictionary, getDependableFinder, isPersistent, setDataDictionary

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.apache.derby.catalog.Dependable

isPersistent

 

Field Detail

referencedColumns

org.apache.derby.catalog.ReferencedColumns referencedColumns

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constraintText

java.lang.String constraintText

Constructor Detail

CheckConstraintDescriptor

CheckConstraintDescriptor(DataDictionary dataDictionary,
                          TableDescriptor table,
                          java.lang.String constraintName,
                          boolean deferrable,
                          boolean initiallyDeferred,
                          org.apache.derby.catalog.UUID constraintId,
                          java.lang.String constraintText,
                          org.apache.derby.catalog.ReferencedColumns referencedColumns,
                          SchemaDescriptor schemaDesc,
                          boolean isEnabled)

Method Detail

hasBackingIndex

public boolean hasBackingIndex()

Does this constraint have a backing index?

Specified by:

hasBackingIndex in class ConstraintDescriptor

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getConstraintType

public int getConstraintType()

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

Specified by:

getConstraintType in class ConstraintDescriptor

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getConstraintText

public java.lang.String getConstraintText()

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

Overrides:

getConstraintText in class ConstraintDescriptor

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getConglomerateId

public org.apache.derby.catalog.UUID getConglomerateId()

Get the UUID of the backing index, if one exists.

Specified by:

getConglomerateId in class ConstraintDescriptor

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getReferencedColumnsDescriptor

public org.apache.derby.catalog.ReferencedColumns getReferencedColumnsDescriptor()

Get the ReferencedColumns.

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setReferencedColumnsDescriptor

public void setReferencedColumnsDescriptor(org.apache.derby.catalog.ReferencedColumns rcd)

Set the ReferencedColumns; used in drop column

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getReferencedColumns

public int[] getReferencedColumns()

Get the referenced columns as an int[] of column ids.

Overrides:

getReferencedColumns in class ConstraintDescriptor

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needsToFire

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

Does this constraint need to fire on this type of DML? For a check constraint, all inserts, and appropriate updates

Specified by:

needsToFire in class ConstraintDescriptor

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toString

public java.lang.String toString()

Convert the CheckConstraintDescriptor to a String.

Overrides:

toString in class ConstraintDescriptor

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> iapi >> sql >> [ dictionary overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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