com.moximedia.ows.wfs
Class FilterPropertyIsNull

java.lang.Object
  com.moximedia.ows.wfs.FilterPropertyIsNull

All Implemented Interfaces:

Filter, java.io.Serializable

public class FilterPropertyIsNull

extends java.lang.Object

implements Filter, java.io.Serializable

Implementation of OGC Filter encoding specification for "PropertyIsNull".

Author:

Doug Cates - Moxi Media Inc.

See Also:

Serialized Form

Constructor Summary

protected	FilterPropertyIsNull() Creates a new attribute filter object.
	FilterPropertyIsNull(java.lang.String fieldName) Creates a new attribute filter object.
	FilterPropertyIsNull(java.lang.String fieldName, boolean isNot) Creates a new attribute filter object.

Method Summary

FilterAnd	and(Filter anotherFilter) Combines two filters in an And element.
int	getFilterType() Gets an enumerated value indicating the type of filter this is.
java.lang.String	getKvpRequestString() Returns the FILTER= string to request features using this filter.
java.lang.String	getKvpRequestString(boolean useOgcNamespaces) Returns the FILTER= string to request features using this filter.
java.lang.String	getXmlRequestString() Returns the XML WFS request representing this filter.
java.lang.String	getXmlRequestString(boolean useOgcNamespaces) Returns the XML WFS request representing this filter.
Filter	not() Negates the filter (encloses it in a not element).
FilterOr	or(Filter anotherFilter) Combines two filters in an Or element.
java.lang.String	toString() Displays this object as a text string.
java.lang.String	toString(boolean useOgcNamespaces) Displays this object as a text string.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterPropertyIsNull

protected FilterPropertyIsNull()

Creates a new attribute filter object.

FilterPropertyIsNull

public FilterPropertyIsNull(java.lang.String fieldName)

Creates a new attribute filter object.

Parameters:

fieldName - The name of the field.

FilterPropertyIsNull

public FilterPropertyIsNull(java.lang.String fieldName,
                            boolean isNot)

Creates a new attribute filter object.

Parameters:

fieldName - The name of the field.

isNot - True if the filter should be negated (enclosed in a <Not> element).

Method Detail

and

public FilterAnd and(Filter anotherFilter)

Combines two filters in an And element. Don't use this method if one of the objects is FilterBBOX or FilterFeatureId.

Specified by:

and in interface Filter

Returns:

The FilterAnd object combining the filters.

or

public FilterOr or(Filter anotherFilter)

Combines two filters in an Or element. Don't use this method if one of the objects is FilterBBOX or FilterFeatureId.

Specified by:

or in interface Filter

Returns:

The FilterOr object combining the filters.

not

public Filter not()

Negates the filter (encloses it in a not element).

Specified by:

not in interface Filter

Returns:

The negated filter.

toString

public java.lang.String toString()

Displays this object as a text string.

Specified by:

toString in interface Filter

Returns:

The object as a text string.

toString

public java.lang.String toString(boolean useOgcNamespaces)

Displays this object as a text string.

Specified by:

toString in interface Filter

Parameters:

useOgcNamespaces - True if the string should contain OGC namespaces.

Returns:

The object as a text string.

getKvpRequestString

public java.lang.String getKvpRequestString()

Returns the FILTER= string to request features using this filter.

Specified by:

getKvpRequestString in interface Filter

Returns:

The FILTER= string to request features using this filter.

getKvpRequestString

public java.lang.String getKvpRequestString(boolean useOgcNamespaces)

Returns the FILTER= string to request features using this filter.

Specified by:

getKvpRequestString in interface Filter

Returns:

The FILTER= string to request features using this filter.

getXmlRequestString

public java.lang.String getXmlRequestString()

Returns the XML WFS request representing this filter.

Specified by:

getXmlRequestString in interface Filter

Returns:

The XML WFS request string.

getXmlRequestString

public java.lang.String getXmlRequestString(boolean useOgcNamespaces)

Returns the XML WFS request representing this filter.

Returns:

The XML WFS request string.

getFilterType

public int getFilterType()

Gets an enumerated value indicating the type of filter this is.

Specified by:

getFilterType in interface Filter

Returns:

The filter type;