org.apache.ws.jaxme.xs

Interface XSIdentityConstraint

public interface XSIdentityConstraint extends XSOpenAttrs

An identity constraint restricts the contents of an elements children. An XSElement may have one or more constraints associated with it that restrict the values that can be stored in an XML file that is described by this schema. For more information read into xs:key, xs:key-ref and xs:unique.

Author: Chris Kirk

See Also:

Method Summary
XSAnnotation[]getAnnotations()
Returns the array of annotations.
XSElementOrAttrRef[][]getMatchCriteria()
Returns an array of references to element and attributes.
StringgetName()
Returns the name of this constraint.
booleanisUnique()
Return true if every element of the key is required when matching a node.

Method Detail

getAnnotations

public XSAnnotation[] getAnnotations()
Returns the array of annotations.

getMatchCriteria

public XSElementOrAttrRef[][] getMatchCriteria()
Returns an array of references to element and attributes. All references are relative to the element that owns this constraint.

The result is a two dimensional array, the first dimension corresponds to each xs:field used to declare the constraint. The second dimension is for each 'or' used within the fields xpath query.

Only tags and attributes that were matched by the xpath will be in the result, any xpath that fails to match anything will not be stored in this array.

getName

public String getName()
Returns the name of this constraint.

isUnique

public boolean isUnique()
Return true if every element of the key is required when matching a node.