| java.lang.Object
 org.apache.derby.iapi.sql.dictionary.TupleDescriptor
org.apache.derby.iapi.sql.dictionary.ConstraintDescriptor
org.apache.derby.iapi.sql.dictionary.KeyConstraintDescriptor
org.apache.derby.iapi.sql.dictionary.ReferencedKeyConstraintDescriptor
| ReferencedKeyConstraintDescriptor | | public class ReferencedKeyConstraintDescriptor extends KeyConstraintDescriptor (Code) | | A ReferencedConstraintDeescriptor is a primary key or a unique
key that is referenced by a foreign key.
author:
Jamie |
| Constructor Summary | |
| protected | ReferencedKeyConstraintDescriptor(int constraintType, DataDictionary dataDictionary, TableDescriptor table, String constraintName, boolean deferrable, boolean initiallyDeferred, int[] columns, UUID constraintId, UUID indexId, SchemaDescriptor schemaDesc, boolean isEnabled, int referenceCount)
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| referenceCount | | int referenceCount(Code) | | |
| ReferencedKeyConstraintDescriptor | | protected ReferencedKeyConstraintDescriptor(int constraintType, DataDictionary dataDictionary, TableDescriptor table, String constraintName, boolean deferrable, boolean initiallyDeferred, int[] columns, UUID constraintId, UUID indexId, SchemaDescriptor schemaDesc, boolean isEnabled, int referenceCount)(Code) | | Constructor for a KeyConstraintDescriptorImpl
Parameters:
constraintType - The type of the constraint
Parameters:
dataDictionary - The data dictionary that this descriptor lives in
Parameters:
table - The descriptor of the table the constraint is on
Parameters:
constraintName - The name of the constraint.
Parameters:
deferrable - If the constraint can be deferred.
Parameters:
initiallyDeferred - If the constraint starts life deferred.
Parameters:
columns - columns involved in the constraint
Parameters:
constraintId - UUID of constraint
Parameters:
indexId - The UUID for the backing index
Parameters:
schemaDesc - The SchemaDescriptor for the constraint
Parameters:
isEnabled - is the constraint enabled?
Parameters:
referenceCount - number of FKs (enabled only) |
| decrementReferenceCount | | public int decrementReferenceCount()(Code) | | Decrement the reference count by one.
the number of fks |
| getConstraintType | | final public int getConstraintType()(Code) | | |
| getForeignKeyConstraints | | public ConstraintDescriptorList getForeignKeyConstraints(int type) throws StandardException(Code) | | Get the referencing foreign key constraints
Parameters:
type - ConstraintDescriptor.(ENABLED|DISABLED|ALL) the list of constraints (ConstraintDescriptorListImpl)
exception:
StandardException - on error |
| getReferenceCount | | public int getReferenceCount()(Code) | | Get the number of enabled fks that
reference this key.
the number of fks |
| hasNonSelfReferencingFK | | public boolean hasNonSelfReferencingFK(int type) throws StandardException(Code) | | Am I referenced by a FK on another table?
Parameters:
type - ConstraintDescriptor.(ENABLED|DISABLED|ALL) true/false
exception:
StandardException - on error |
| hasSelfReferencingFK | | public boolean hasSelfReferencingFK(ConstraintDescriptorList cdl, int type) throws StandardException(Code) | | Am I referenced by a FK on the same table?
Parameters:
cdl - ConstraintDescriptorList for the table
Parameters:
type - ConstraintDescriptor.(ENABLED|DISABLED|ALL) true/false
exception:
StandardException - on error |
| incrementReferenceCount | | public int incrementReferenceCount()(Code) | | Bump the reference count by one.
the number of fks |
| isReferenced | | public boolean isReferenced()(Code) | | Is this constraint referenced? Returns
true if there are enabled fks that
reference this constraint.
false |
| needsToFire | | public boolean needsToFire(int stmtType, int[] modifiedCols)(Code) | | Does this constraint need to fire on this type of
DML? For referenced keys, fire if referenced by
a fk, and stmt is delete or bulk insert replace,
or stmt is update and columns intersect.
Parameters:
stmtType - the type of DML (StatementType.INSERT|StatementType.UPDATE|StatementType.DELETE)
Parameters:
modifiedCols - the columns modified, or null for all true/false |
| Fields inherited from org.apache.derby.iapi.sql.dictionary.KeyConstraintDescriptor | UUID indexId(Code)(Java Doc)
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