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java.lang.Objectoracle.jdeveloper.cm.ds.db.AbstractDBObject
oracle.jdeveloper.cm.ds.db.Constraint
oracle.jdeveloper.cm.ds.db.ColumnConstraint
oracle.jdeveloper.cm.ds.db.UniqueConstraint
oracle.jdeveloper.cm.ds.db.PKConstraint
A PKConstraint
represents a Primary Key constraint. A Primary Key
combines a NOT NULL constraint and a unique constraint in a single declaration.
That is, it prohibits multiple rows from having the same value in the
same column or combination of columns and prohibits values from being null.
Field Summary | |
static java.lang.String |
CONSTRAINT_TYPE
|
Fields inherited from class oracle.jdeveloper.cm.ds.db.Constraint |
TYPE |
Fields inherited from interface oracle.jdeveloper.cm.ds.db.DBObject |
COMMENT |
Fields inherited from interface oracle.ide.addin.Subject |
OBJECT_MODIFIED |
Constructor Summary | |
PKConstraint()
Constructs a new PKConstraint. |
|
PKConstraint(java.lang.String name,
Relation relation)
Constructs a new PKConstraint on the specified Relation with the specified name. |
Method Summary | |
java.lang.Object |
copyTo(java.lang.Object target)
Copies the state of this DBObject to another instance. |
boolean |
equals(java.lang.Object target)
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java.lang.String |
getConstraintType()
Retrieves the type of constraint represented by this instance. |
Methods inherited from class oracle.jdeveloper.cm.ds.db.ColumnConstraint |
addColumn, copyToImpl, equalsImpl, getColumns, removeColumn, setColumns, setRelation |
Methods inherited from class oracle.jdeveloper.cm.ds.db.Constraint |
copyToImpl, equalsImpl, getRelation, getType, isEnabled, setEnabled |
Methods inherited from class oracle.jdeveloper.cm.ds.db.AbstractDBObject |
attach, compareToImpl, copyToImpl, detach, equalsImpl, getID, getName, getProperties, getProperty, hashCode, notifyObservers, setID, setName, setProperties, setProperty, toString |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final java.lang.String CONSTRAINT_TYPE
Constructor Detail |
public PKConstraint()
public PKConstraint(java.lang.String name, Relation relation)
relation
- the relation on which this constraint actsMethod Detail |
public java.lang.Object copyTo(java.lang.Object target)
DBObject
null
is specified for the target, a new instance will be created.
The entire state of the object will be copied, with a few exceptions. In particular, any observers registered will NOT be copied. In cases where this instance contains child DBObjects, new instances of those children will be created, and the state copied to them. The copy will thus contain its own unique state; after making the copy, changing one instance will not cause any changes to occur to the copy. The properties will be copied; however, copies will not be made of the values referenced by the properties - thus, the copy will refer to the same instance as the original. Child objects that are copied will still point to the original parent; it is the responsibility of a copied parent to update the parent of copies of its children point to the copy of itself.
The ID associated with this object will not be copied. If the copy is intended to be a temporary copy of this object (to be used in a dialog editing the object for example), then the caller should explicitly set the ID of the copy to be the same as on this object. However, if the new object is intended to exist separately from this object, the caller should ensure that the new object have a different ID from this object.
copyTo
in interface DBObject
copyTo
in class UniqueConstraint
public boolean equals(java.lang.Object target)
equals
in class UniqueConstraint
public java.lang.String getConstraintType()
Constraint
getConstraintType
in class UniqueConstraint
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