com.saxonica.validate
Class KeySelectorWatch
java.lang.Object
com.saxonica.validate.AbstractWatch
com.saxonica.validate.SelectorWatch
com.saxonica.validate.KeySelectorWatch
- All Implemented Interfaces:
- Watch
public class KeySelectorWatch
- extends SelectorWatch
This class watches the selector for a key or unique constraint
Method Summary |
void |
addKeyRef(RefSelectorWatch watch)
Add a RefSelectorWatch to support a keyRef that refers to this key
or unique constraints |
protected void |
checkRow(Value[] currentRow,
boolean isTarget,
int locationId)
Method to check that a row (that is, the collection of fields corresponding
to one selected node) is valid. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
KeySelectorWatch
public KeySelectorWatch(ConstraintChecker checker,
IdentityConstraint uniqueConstraint)
addKeyRef
public void addKeyRef(RefSelectorWatch watch)
- Add a RefSelectorWatch to support a keyRef that refers to this key
or unique constraints
- Parameters:
watch
- the RefSelectorWatch which needs to be notified of all
values encountered for this key
checkRow
protected void checkRow(Value[] currentRow,
boolean isTarget,
int locationId)
throws ValidationException
- Method to check that a row (that is, the collection of fields corresponding
to one selected node) is valid. This implentation augments that in the
superclass by notifying all interested keyref's of the values in this row.
- Overrides:
checkRow
in class SelectorWatch
- Parameters:
currentRow
- the values of the set of fieldsisTarget
- set to true if this is a value of the key referred to
by a key reference, rather than a value for this constraint's own selected
fields.locationId
- identifies the location of the selected node
- Throws:
ValidationException
- May be raised if the value of the row (that is,
the combination of fields) violates the constraint
Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.