Package org.jibx.schema.elements

Class SchemaPath

java.lang.Object

org.jibx.schema.elements.SchemaPath

public class SchemaPath
extends Object

Path specification within a schema definition. This implements simple XPath-like expressions, consisting of any number of path components given as element names or '*' for any element or '**' for any nesting of elements, along with optional position number or name attribute predicates in square brackets.

Author:

Dennis M. Sosnoski

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SchemaPath.PathStep
static class	SchemaPath.StepBase

Method Summary

Modifier and Type	Method	Description
static SchemaPath	buildPath(String path, String elemname, String nameattr, String postext, Object obj, ValidationContext vctx)	Build a path.
int	getPathLength()	Get length of this path (minimum number of nested elements).
boolean	isWildStart()	Check if the first path step is a wildcard.
OpenAttrBase	matchUnique(OpenAttrBase base)	Find unique match for expression starting from a supplied schema element annotation.
List	partialMatchMultiple(int first, int last, OpenAttrBase base)	Find any number of matches for subexpression starting from a supplied schema element annotation.
OpenAttrBase	partialMatchUnique(int first, int last, OpenAttrBase base)	Find unique match for subexpression starting from a supplied schema element annotation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getPathLength

public int getPathLength()

Get length of this path (minimum number of nested elements).

Returns:

path length

isWildStart

public boolean isWildStart()

Check if the first path step is a wildcard.

Returns:

true if wildcard, false if not

partialMatchMultiple

public List partialMatchMultiple(int first,
                                 int last,
                                 OpenAttrBase base)

Find any number of matches for subexpression starting from a supplied schema element annotation.

Parameters:

first - starting path step index

last - ending path step index

base - starting element for match

Returns:

matching element, or null if error

partialMatchUnique

public OpenAttrBase partialMatchUnique(int first,
                                       int last,
                                       OpenAttrBase base)

Find unique match for subexpression starting from a supplied schema element annotation. An error is reported if no match is found, or if multiple matches are found.

Parameters:

first - starting path step index

last - ending path step index

base - starting element for match

Returns:

matching element, or null if error

matchUnique

public OpenAttrBase matchUnique(OpenAttrBase base)

Find unique match for expression starting from a supplied schema element annotation. An error is reported if no match is found, or if multiple matches are found.

Parameters:

base - starting element for match

Returns:

matching element, or null if error

buildPath

public static SchemaPath buildPath(String path,
                                   String elemname,
                                   String nameattr,
                                   String postext,
                                   Object obj,
                                   ValidationContext vctx)

Build a path. If a path expression is supplied, the final path step in the expression must either not use an element name, or the element name must match the actual element supplied.

Parameters:

path - expression (null if none)

elemname - element name for final step in path

nameattr - name attribute (applied to final step in path, null if none)

postext - position (applied to final step in path, null if none)

obj - object defining the path

vctx - validation context

Returns:

constructed path, or null if error