Package org.apache.sis.internal.filter.sqlmm

Class OneGeometry.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.OneGeometry<R,G>

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

All Implemented Interfaces:

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

Enclosing class:

OneGeometry<R,G>

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

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

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sis.internal.filter.sqlmm.OneGeometry

OneGeometry.WithArgument<R,G>

Field Summary

Fields

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

Fields inherited from class org.apache.sis.internal.filter.sqlmm.OneGeometry

geometry

Fields inherited from class org.apache.sis.internal.filter.sqlmm.SpatialFunction

operation

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
Object	apply(R input)	Evaluates the first expression as a geometry object, 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 org.apache.sis.internal.filter.sqlmm.OneGeometry

getGeometryLibrary

Methods inherited from class org.apache.sis.internal.filter.sqlmm.SpatialFunction

expectedType, getChildren, getFunctionName, getSyntax, getValueClass, toValueType

Methods inherited from class org.apache.sis.internal.filter.Node

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface org.apache.sis.filter.Optimization.OnExpression

optimize

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 geometry.

Constructor Details

WithArgument

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

Creates a new function for a geometry 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 OneGeometry<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 OneGeometry<R,G>

Returns:

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

apply

public Object apply(R input)

Evaluates the first expression as a geometry object, 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 OneGeometry<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.