org.geootols.filter.text.cql_2

Class CQL2

Object

CQL2

public class CQL2
extends Object

OGC API CQL2. This class presents the operations available to parse the CQL2 language and generates the correspondent filter.

Method Summary

Modifier and Type	Method and Description
static String	toCQL2(Expression expression) Generates the expression text associated to the Expression object.
static String	toCQL2(Filter filter) Generates the CQL2 predicate associated to the Filter object.
static Expression	toExpression(String cql2Expression) Parses the input string in CQL2 format into an Expression, using the systems default FilterFactory implementation.
static Expression	toExpression(String cql2Expression, FilterFactory filterFactory) Parses the input string in CQL2 format and makes the correspondent Expression , using the provided FilterFactory.
static Filter	toFilter(String cql2Predicate) Parses the input string in CQL2 format into a Filter, using the systems default FilterFactory implementation.
static Filter	toFilter(String cql2Predicate, FilterFactory filterFactory) Parses the input string in CQL2 format into a Filter, using the provided FilterFactory.

Methods inherited from class Object

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

Method Detail

toFilter

public static Filter toFilter(String cql2Predicate)
                       throws CQLException

Parses the input string in CQL2 format into a Filter, using the systems default FilterFactory implementation.

Parameters:

cql2Predicate - a string containing a query predicate in CQL format.

Returns:

a Filter equivalent to the constraint specified in CQL2 .

Throws:

CQLException

toFilter

public static Filter toFilter(String cql2Predicate,
                              FilterFactory filterFactory)
                       throws CQLException

Parses the input string in CQL2 format into a Filter, using the provided FilterFactory.

Parameters:

cql2Predicate - a string containing a query predicate in CQL2 format.

filterFactory - the FilterFactory to use for the creation of the Filter. If it is null the method finds the default implementation.

Returns:

a Filter equivalent to the constraint specified in Predicate.

Throws:

CQLException

toExpression

public static Expression toExpression(String cql2Expression)
                               throws CQLException

Parses the input string in CQL2 format into an Expression, using the systems default FilterFactory implementation.

Parameters:

cql2Expression - a string containing an CQL2 expression.

Returns:

a Expression equivalent to the one specified in cql2Expression.

Throws:

CQLException

toExpression

public static Expression toExpression(String cql2Expression,
                                      FilterFactory filterFactory)
                               throws CQLException

Parses the input string in CQL2 format and makes the correspondent Expression , using the provided FilterFactory.

Parameters:

cql2Expression - a string containing a CQL2 expression.

filterFactory - the FilterFactory to use for the creation of the Expression. If it is null the method finds the default implementation.

Returns:

a Filter equivalent to the constraint specified in cql2Expression .

Throws:

CQLException

toCQL2

public static String toCQL2(Filter filter)

Generates the CQL2 predicate associated to the Filter object.

Returns:

CQL2 predicate

toCQL2

public static String toCQL2(Expression expression)

Generates the expression text associated to the Expression object.

Returns:

expression as text