Package com.kheops.jmap.metadata

Class AttributeFilter

java.lang.Object

com.kheops.jmap.metadata.QueryFilter

com.kheops.jmap.metadata.AttributeFilter

All Implemented Interfaces:

Serializable, Cloneable

public class AttributeFilter
extends QueryFilter

The attribute filter is used as a constraint in the extraction of geometries and attributes from a spatial data source. Only elements that have a value for the specified attribute equals to one of the specified values in the filter can be selected in the data extraction.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.kheops.jmap.metadata.QueryFilter

QueryFilter.GeometryFilter

Field Summary

Fields

Modifier and Type	Field	Description
static final Attribute	ID_ATTRIBUTE	If the id attribute of the spatial data source is not known, thisID_ATTRIBUTE can be used by the attribute filter.

Fields inherited from class com.kheops.jmap.metadata.QueryFilter

LOGICAL_AND, LOGICAL_OR

Constructor Summary

Constructors

Constructor	Description
AttributeFilter(Attribute attribute, Object[] values)	Creates a new attribute filter.

Method Summary

Modifier and Type	Method	Description
Object	clone()	Clones this attribute filter.
Attribute	getAttribute()	Returns the filter attribute.
Object[]	getValues()	Returns values to be used to filter elements.

Methods inherited from class com.kheops.jmap.metadata.QueryFilter

getDescription, getLogicalOperator, isEnabled, setDescription, setEnabled, setLogicalOperator

Methods inherited from class java.lang.Object

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

Field Details

ID_ATTRIBUTE

public static final Attribute ID_ATTRIBUTE

If the id attribute of the spatial data source is not known, thisID_ATTRIBUTE can be used by the attribute filter.

Constructor Details

AttributeFilter

public AttributeFilter(Attribute attribute,
 Object[] values)

Creates a new attribute filter.

Parameters:

attribute - the attribute to select.

values - values to be used to filter elements.

Method Details

getAttribute

public Attribute getAttribute()

Returns the filter attribute.

Returns:

the filter attribute.

getValues

public Object[] getValues()

Returns values to be used to filter elements.

Returns:

all values to be used to filter elements.

clone

public Object clone()

Clones this attribute filter.

Specified by:

clone in class QueryFilter

Returns:

a clone of the current instance.