org.geotools.data.complex.filter
Class XPath
Object
XPathUtil
XPath
public class XPath
- extends XPathUtil
Utility class to evaluate XPath expressions against an Attribute instance, which may be any
Attribute, whether it is simple, complex, a feature, etc.
At the difference of the Filter subsystem, which works against Attribute contents (for example to
evaluate a comparison filter), the XPath subsystem, for which this class is the single entry
point, works against Attribute instances. That is, the result of an XPath expression, if a single
value, is an Attribtue, not the attribute content, or a List of Attributes, for instance.
- Since:
- 2.4
- Author:
- Gabriel Roldan (Axios Engineering), Rini Angreani (CSIRO Earth Science and Resource Engineering)
Method Summary |
boolean |
isComplexType(XPathUtil.StepList attrXPath,
AttributeDescriptor featureType)
|
static boolean |
isId(XPathUtil.Step step)
|
Attribute |
set(Attribute att,
XPathUtil.StepList xpath,
Object value,
String id,
AttributeType targetNodeType,
boolean isXlinkRef,
AttributeDescriptor targetDescriptor,
Expression sourceExpression)
|
Attribute |
set(Attribute att,
XPathUtil.StepList xpath,
Object value,
String id,
AttributeType targetNodeType,
boolean isXlinkRef,
Expression sourceExpression)
Sets the value of the attribute of att addressed by xpath and of
type targetNodeType to be value with id id . |
void |
setCRS(CoordinateReferenceSystem crs)
|
void |
setFeatureFactory(FeatureFactory featureFactory)
|
void |
setFilterFactory(FilterFactory ff)
|
Methods inherited from class Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
XPath
public XPath()
XPath
public XPath(FilterFactory ff,
FeatureFactory featureFactory)
setFilterFactory
public void setFilterFactory(FilterFactory ff)
setCRS
public void setCRS(CoordinateReferenceSystem crs)
setFeatureFactory
public void setFeatureFactory(FeatureFactory featureFactory)
set
public Attribute set(Attribute att,
XPathUtil.StepList xpath,
Object value,
String id,
AttributeType targetNodeType,
boolean isXlinkRef,
Expression sourceExpression)
- Sets the value of the attribute of
att
addressed by xpath
and of
type targetNodeType
to be value
with id id
.
- Parameters:
att
- the root attribute for which to set the child attribute valuexpath
- the xpath expression that addresses the att
child whose value is to
be setvalue
- the value of the attribute addressed by xpath
id
- the identifier of the attribute addressed by xpath
, might be
null
targetNodeType
- the expected type of the attribute addressed by xpath
, or
null
if unknownisXlinkRef
- true if the attribute would only contain xlink:href client property
- Returns:
set
public Attribute set(Attribute att,
XPathUtil.StepList xpath,
Object value,
String id,
AttributeType targetNodeType,
boolean isXlinkRef,
AttributeDescriptor targetDescriptor,
Expression sourceExpression)
isComplexType
public boolean isComplexType(XPathUtil.StepList attrXPath,
AttributeDescriptor featureType)
isId
public static boolean isId(XPathUtil.Step step)
- Returns:
- true if this step represents an id attribute
Copyright © 1996-2014 Geotools. All Rights Reserved.