Class TwoGeometries.WithArgument<R,G>

java.lang.Object

org.apache.sis.internal.filter.Node

org.apache.sis.internal.filter.sqlmm.SpatialFunction<R>

org.apache.sis.internal.filter.sqlmm.TwoGeometries<R,G>

org.apache.sis.internal.filter.sqlmm.TwoGeometries.WithArgument<R,G>

All Implemented Interfaces:

Serializable, Function<R,Object>, Expression<R,Object>, Optimization.OnExpression<R,Object>, FeatureExpression<R,Object>

Enclosing class:

TwoGeometries<R,G>

static final class TwoGeometries.WithArgument<R,G>
extends TwoGeometries<R,G>

SQLMM spatial functions taking a single geometry operand with one argument.

Since:

1.1

Version:

1.3

Nested Class Summary

Nested classes/interfaces inherited from class TwoGeometries

TwoGeometries.WithArgument<R,G>

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final Expression<? super R, ?>	argument	The first argument after the geometries.
private static final long	serialVersionUID	For cross-version compatibility.

Fields inherited from class TwoGeometries

geometry1, geometry2

Fields inherited from class SpatialFunction

operation

Constructor Summary

Constructors

Constructor	Description
WithArgument(SQLMM operation, Expression<? super R, ?>[] parameters, Geometries<G> library)	Creates a new function for geometries represented by the given parameter.

Method Summary

Modifier and Type	Method	Description
Object	apply(R input)	Evaluates the two first expressions as geometry objects, applies the operation and returns the result.
List<Expression<? super R, ?>>	getParameters()	Returns the sub-expressions that will be evaluated to provide the parameters to the function.
Expression<R,Object>	recreate(Expression<? super R, ?>[] effective)	Creates a new expression of the same type than this expression, but with an optimized geometry.

Methods inherited from class TwoGeometries

getGeometryLibrary, optimize

Methods inherited from class SpatialFunction

expectedType, getChildren, getFunctionName, getSyntax, getValueClass, toValueType

Methods inherited from class Node

createName, createType, equals, getGeometryLibrary, hashCode, symbol, toGeometryWrapper, toString, unwrap, warning

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Function

andThen, compose

Field Details

serialVersionUID

private static final long serialVersionUID

For cross-version compatibility.

See Also:

• Constant Field Values

argument

final Expression<? super R, ?> argument

The first argument after the geometries.

Constructor Details

WithArgument

WithArgument(SQLMM operation,
 Expression<? super R, ?>[] parameters,
 Geometries<G> library)

Creates a new function for geometries represented by the given parameter.

Method Details

recreate

public Expression<R,Object> recreate(Expression<? super R, ?>[] effective)

Creates a new expression of the same type than this expression, but with an optimized geometry. The optimization may be a geometry computed immediately if all operator parameters are literals.

Specified by:

recreate in interface Optimization.OnExpression<R,G>

Overrides:

recreate in class TwoGeometries<R,G>

Parameters:

effective - the expressions to use as a replacement of this expression parameters.

Returns:

the new expression, or this if unsupported.

getParameters

public List<Expression<? super R, ?>> getParameters()

Returns the sub-expressions that will be evaluated to provide the parameters to the function.

Specified by:

getParameters in interface Expression<R,G>

Overrides:

getParameters in class TwoGeometries<R,G>

Returns:

the sub-expressions to be evaluated, or an empty list if none.

apply

public Object apply(R input)

Evaluates the two first expressions as geometry objects, applies the operation and returns the result.

Specified by:

apply in interface Expression<R,G>

Specified by:

apply in interface Function<R,G>

Overrides:

apply in class TwoGeometries<R,G>

Parameters:

input - the object to be evaluated by the expression. Can be null if this expression allows null values.

Returns:

value computed by the expression.