Package org.opendaylight.yangtools.yang.xpath.api

Interface YangXPathExpression.UnqualifiedBound

All Superinterfaces:

Immutable, YangXPathExpression, YangXPathExpression.QualifiedBound

Enclosing interface:

YangXPathExpression

public static interface YangXPathExpression.UnqualifiedBound
extends YangXPathExpression.QualifiedBound

An Unqualified-bound expression. All UnresolvedQName.Unqualifieds are eliminated and replaced with QNames.

Nested Class Summary

Nested classes/interfaces inherited from interface org.opendaylight.yangtools.yang.xpath.api.YangXPathExpression

YangXPathExpression.QualifiedBound, YangXPathExpression.UnqualifiedBound

Method Summary

Modifier and Type	Method	Description
YangQNameExpr.Resolved	interpretAsQName(YangLiteralExpr expr)	Attempt to interpret a YangLiteralExpr referenced by this expression as a QName.

Methods inherited from interface org.opendaylight.yangtools.yang.xpath.api.YangXPathExpression

getMathMode, getRootExpr, getYangVersion, interpretAsInstanceIdentifier

Method Details

interpretAsQName

YangQNameExpr.Resolved interpretAsQName(YangLiteralExpr expr)
                                 throws XPathExpressionException

Description copied from interface: YangXPathExpression

Attempt to interpret a YangLiteralExpr referenced by this expression as a QName. This method is required to perform late value binding of the expression when the literal needs to be interpreted as a reference to an identity.

The syntax of expr is required to conform to XML QName format, as further restricted by YANG identityref Lexical Representation.

Unfortunately we do not know when a literal will need to be interpreted in this way, as that can only be known at evaluation.

Specified by:

interpretAsQName in interface YangXPathExpression

Parameters:

expr - Literal to be reinterpreted

Returns:

YangQNameExpr result of interpretation

Throws:

XPathExpressionException - when the literal cannot be interpreted as a QName