org.deegree.model.filterencoding
Class FilterTools

java.lang.Object
  org.deegree.model.filterencoding.FilterTools

public class FilterTools
extends Object

Since:

2.0

Version:

$Revision: 6876 $, 1.0. $Revision: 6876 $, $Date: 2007-05-08 09:52:09 +0200 (Di, 08 Mai 2007) $

Author:

Andreas Poth, last edited by: $Author: apoth $

Constructor Summary

FilterTools()

Method Summary

static Object[]	extractFirstBBOX(ComplexFilter filter) Traverses the Filter -tree and returns the first BBOX-Operation that is found and a Filter that is equal to the given one minus the BBOX-Operation.
static List<PropertyPath>	extractPropertyPaths(Expression expression, List<PropertyPath> list) returns all PropertyPath definitions from the passed Expression
static List<PropertyPath>	extractPropertyPaths(Filter filter) returns all PropertyPath definitions from the passed Filter
static SpatialOperation[]	extractSpatialFilter(ComplexFilter filter) Traverses the Filter -tree and returns all spatial filter operations.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterTools

public FilterTools()

Method Detail

extractFirstBBOX

public static Object[] extractFirstBBOX(ComplexFilter filter)
                                 throws Exception

Traverses the Filter -tree and returns the first BBOX-Operation that is found and a Filter that is equal to the given one minus the BBOX-Operation.

Parameters:

filter - search starts here

Returns:

[0]: Envelope (BBOX), [1]: Filter

Throws:

Exception

extractSpatialFilter

public static SpatialOperation[] extractSpatialFilter(ComplexFilter filter)

Traverses the Filter -tree and returns all spatial filter operations. Their logical relationships are ignored, because within the intended target context, only AND operations are possible.

Parameters:

filter - search starts here

Returns:

Filter-array

Throws:

Exception

extractPropertyPaths

public static List<PropertyPath> extractPropertyPaths(Filter filter)
                                               throws PropertyPathResolvingException

returns all PropertyPath definitions from the passed Filter

Parameters:

filter -

Returns:

all PropertyPath definitions from the passed Filter

Throws:

PropertyPathResolvingException

See Also:

PropertyPath, Filter

extractPropertyPaths

public static List<PropertyPath> extractPropertyPaths(Expression expression,
                                                      List<PropertyPath> list)
                                               throws PropertyPathResolvingException

returns all PropertyPath definitions from the passed Expression

Parameters:

expression -

list -

Returns:

all PropertyPath definitions from the passed Expression

Throws:

PropertyPathResolvingException

See Also:

PropertyPath, Expression