org.deegree_impl.services.wfs.filterencoding
Class AbstractOperation

java.lang.Object
  org.deegree_impl.services.wfs.filterencoding.AbstractOperation

All Implemented Interfaces:

Operation

Direct Known Subclasses:

ComparisonOperation, LogicalOperation, SpatialOperation

public abstract class AbstractOperation

extends java.lang.Object

implements Operation

Abstract superclass representing spatial_ops, comparison_ops and logical_ops entities (as defined in the Filter DTD). The three different types are reflected in SpatialOperation, ComparisonOperation and LogicalOperation classes.

Version:

10.08.2002

Author:

Markus Schneider

Field Summary

protected int

operatorId The underlying operator's id.

Constructor Summary

(package private)

AbstractOperation(int operatorId)

Method Summary

static Operation	buildFromDOM(org.w3c.dom.Element element) Given a DOM-fragment, a corresponding Operation-object is built.
int	getOperatorId() Returns the operator's id.
java.lang.String	getOperatorName() Returns the name of the operator.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deegree.services.wfs.filterencoding.Operation

evaluate, toXML

Field Detail

operatorId

protected int operatorId

The underlying operator's id.

See Also:

OperationDefines

Constructor Detail

AbstractOperation

AbstractOperation(int operatorId)

Method Detail

buildFromDOM

public static Operation buildFromDOM(org.w3c.dom.Element element)
                              throws FilterConstructionException

Given a DOM-fragment, a corresponding Operation-object is built. This method recursively calls other buildFromDOM () - methods to validate the structure of the DOM-fragment.

Throws:

FilterConstructionException - if the structure of the DOM-fragment is invalid

getOperatorName

public java.lang.String getOperatorName()

Returns the name of the operator.

Specified by:

getOperatorName in interface Operation

getOperatorId

public int getOperatorId()

Returns the operator's id.

Specified by:

getOperatorId in interface Operation

See Also:

OperationDefines