org.eclipse.wst.rdb.internal.models.sql.constraints
Interface UniqueConstraint

All Superinterfaces:

Constraint, org.eclipse.emf.ecore.EModelElement, org.eclipse.emf.ecore.ENamedElement, org.eclipse.emf.ecore.EObject, org.eclipse.emf.common.notify.Notifier, ReferenceConstraint, SQLObject, TableConstraint

All Known Subinterfaces:

PrimaryKey

All Known Implementing Classes:

UniqueConstraintImpl

public interface UniqueConstraint

extends ReferenceConstraint

A representation of the model object 'Unique Constraint'. Section 4.17.2 A unique constraint is satisfied if and only if no two rows in a table have the same non-null values in the unique columns. Section 11.7 3) If UCL is specified, then a) Each in the shall identify a column of T, and the same column shall not be identified more than once. b) The set of columns in the shall be distinct from the unique columns of any other unique constraint descriptor that is included in the base table descriptor of T.

The following features are supported:

• Foreign Key

See Also:

SQLConstraintsPackage.getUniqueConstraint()

Method Summary

org.eclipse.emf.common.util.EList

getForeignKey() Returns the value of the 'Foreign Key' reference list.

Methods inherited from interface org.eclipse.wst.rdb.internal.models.sql.constraints.ReferenceConstraint

getMembers

Methods inherited from interface org.eclipse.wst.rdb.internal.models.sql.constraints.TableConstraint

getBaseTable, setBaseTable

Methods inherited from interface org.eclipse.wst.rdb.internal.models.sql.constraints.Constraint

isDeferrable, isEnforced, isInitiallyDeferred, setDeferrable, setEnforced, setInitiallyDeferred

Methods inherited from interface org.eclipse.wst.rdb.internal.models.sql.schema.SQLObject

addEAnnotation, addEAnnotationDetail, getDependencies, getDescription, getEAnnotation, getEAnnotationDetail, getLabel, removeEAnnotationDetail, setAnnotationDetail, setDescription, setLabel

Methods inherited from interface org.eclipse.emf.ecore.ENamedElement

getName, setName

Methods inherited from interface org.eclipse.emf.ecore.EModelElement

getEAnnotations

Methods inherited from interface org.eclipse.emf.ecore.EObject

eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eIsProxy, eIsSet, eResource, eSet, eUnset

Methods inherited from interface org.eclipse.emf.common.notify.Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Method Detail

getForeignKey

public org.eclipse.emf.common.util.EList getForeignKey()

Returns the value of the 'Foreign Key' reference list. The list contents are of type ForeignKey. It is bidirectional and its opposite is 'Unique Constraint'.

If the meaning of the 'Foreign Key' reference list isn't clear, there really should be more of a description here...

Returns:

the value of the 'Foreign Key' reference list.

See Also:

SQLConstraintsPackage.getUniqueConstraint_ForeignKey(), ForeignKey.getUniqueConstraint()