org.geotools.filter
Interface FunctionExpression

All Superinterfaces:

Expression, ExpressionType, Factory, Function

All Known Implementing Classes:

AreaFunction, AsMultiGeometryFunctionExpression, ClassificationFunction, ClassifyFunction, Collection_AverageFunction, Collection_BoundsFunction, Collection_CountFunction, Collection_MaxFunction, Collection_MedianFunction, Collection_MinFunction, Collection_SumFunction, Collection_UniqueFunction, EnvFunction, EqualIntervalFunction, FallbackFunction, FilterFunction_abs, FilterFunction_abs_2, FilterFunction_abs_3, FilterFunction_abs_4, FilterFunction_acos, FilterFunction_area, FilterFunction_asin, FilterFunction_atan, FilterFunction_atan2, FilterFunction_between, FilterFunction_boundary, FilterFunction_boundaryDimension, FilterFunction_buffer, FilterFunction_bufferWithSegments, FilterFunction_ceil, FilterFunction_centroid, FilterFunction_contains, FilterFunction_Convert, FilterFunction_convexHull, FilterFunction_cos, FilterFunction_crosses, FilterFunction_dateFormat, FilterFunction_dateParse, FilterFunction_difference, FilterFunction_dimension, FilterFunction_disjoint, FilterFunction_distance, FilterFunction_double2bool, FilterFunction_endAngle, FilterFunction_endPoint, FilterFunction_envelope, FilterFunction_equalsExact, FilterFunction_equalsExactTolerance, FilterFunction_equalTo, FilterFunction_exp, FilterFunction_exteriorRing, FilterFunction_floor, FilterFunction_geometryType, FilterFunction_geomFromWKT, FilterFunction_geomLength, FilterFunction_getGeometryN, FilterFunction_getX, FilterFunction_getY, FilterFunction_getZ, FilterFunction_greaterEqualThan, FilterFunction_greaterThan, FilterFunction_IEEEremainder, FilterFunction_if_then_else, FilterFunction_in10, FilterFunction_in2, FilterFunction_in3, FilterFunction_in4, FilterFunction_in5, FilterFunction_in6, FilterFunction_in7, FilterFunction_in8, FilterFunction_in9, FilterFunction_int2bbool, FilterFunction_int2ddouble, FilterFunction_interiorPoint, FilterFunction_interiorRingN, FilterFunction_intersection, FilterFunction_intersects, FilterFunction_isClosed, FilterFunction_isEmpty, FilterFunction_isLike, FilterFunction_isNull, FilterFunction_isometric, FilterFunction_isRing, FilterFunction_isSimple, FilterFunction_isValid, FilterFunction_isWithinDistance, FilterFunction_lessEqualThan, FilterFunction_lessThan, FilterFunction_log, FilterFunction_max, FilterFunction_max_2, FilterFunction_max_3, FilterFunction_max_4, FilterFunction_min, FilterFunction_min_2, FilterFunction_min_3, FilterFunction_min_4, FilterFunction_minimumCircle, FilterFunction_minimumDiameter, FilterFunction_minimumRectangle, FilterFunction_not, FilterFunction_notEqualTo, FilterFunction_numberFormat, FilterFunction_numberFormat2, FilterFunction_numGeometries, FilterFunction_numInteriorRing, FilterFunction_numPoints, FilterFunction_octagonalEnvelope, FilterFunction_offset, FilterFunction_overlaps, FilterFunction_parseBoolean, FilterFunction_parseDouble, FilterFunction_parseInt, FilterFunction_parseLong, FilterFunction_pointN, FilterFunction_pow, FilterFunction_property, FilterFunction_random, FilterFunction_relate, FilterFunction_relatePattern, FilterFunction_rint, FilterFunction_round, FilterFunction_round_2, FilterFunction_roundDouble, FilterFunction_sdonn, FilterFunction_setCRS, FilterFunction_sin, FilterFunction_sqrt, FilterFunction_startAngle, FilterFunction_startPoint, FilterFunction_strCapitalize, FilterFunction_strConcat, FilterFunction_strEndsWith, FilterFunction_strEqualsIgnoreCase, FilterFunction_strIndexOf, FilterFunction_strLastIndexOf, FilterFunction_strLength, FilterFunction_strMatches, FilterFunction_strPosition, FilterFunction_strReplace, FilterFunction_strStartsWith, FilterFunction_strSubstring, FilterFunction_strSubstringStart, FilterFunction_strToLowerCase, FilterFunction_strToUpperCase, FilterFunction_strTrim, FilterFunction_strTrim2, FilterFunction_symDifference, FilterFunction_tan, FilterFunction_toDegrees, FilterFunction_toRadians, FilterFunction_touches, FilterFunction_toWKT, FilterFunction_union, FilterFunction_vertices, FilterFunction_within, FunctionExpressionImpl, IDFunction, IDFunctionExpression, JenksNaturalBreaksFunction, LengthFunction, MaxFunction, MinFunction, PaletteFunction, PiFunction, PropertyExistsFunction, QuantileFunction, StandardDeviationFunction, UniqueIntervalFunction

Deprecated. use Function

public interface FunctionExpression
extends Expression, Factory, Function

Interface for a function expression implementation

Author:

James Macgill, PSU

Field Summary

Fields inherited from interface ExpressionType

ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_LONG, LITERAL_STRING, LITERAL_UNDECLARED, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT

Fields inherited from interface Expression

NIL

Method Summary

int	getArgCount() Deprecated. Returns the number of arguments this requires.
Expression[]	getArgs() Deprecated. use Function.getParameters()
String	getName() Deprecated. Gets the name of this function.
short	getType() Deprecated. Gets the type of this expression.
void	setArgs(Expression[] args) Deprecated. use setParameters(List)
void	setParameters(List<Expression> parameters) Deprecated. Sets the paramters for the function.

Methods inherited from interface Expression

accept, evaluate, getValue

Methods inherited from interface Factory

getImplementationHints

Methods inherited from interface Function

getFallbackValue, getFunctionName, getParameters

Methods inherited from interface Expression

accept, evaluate, evaluate

Method Detail

getArgCount

int getArgCount()

Deprecated.

Returns the number of arguments this requires. For example [arg1][arg2]. This function must have EXACTLY 2 arguments, so this function would return 2. The parser might use this information to ensure validity, and its also for reporting capabilities. NOTE: this was previously javadoc-ed incorrectly, please note the new definition. NOTE: you cannot have a function with a variable number of arguments.

Returns:

the number of args required by this function.

getType

short getType()

Deprecated.

Gets the type of this expression.

Returns:

the short representation of a function expression.

getArgs

Expression[] getArgs()

Deprecated. use Function.getParameters()

Gets the arguments to be evaluated by this function.

Returns:

an array of the args to be evaluated.

getName

String getName()

Deprecated.

Gets the name of this function.

Specified by:

getName in interface Function

Returns:

the name of the function.

setArgs

void setArgs(Expression[] args)

Deprecated. use setParameters(List)

Sets the arguments to be evaluated by this function.

Parameters:

args - an array of expressions to be evaluated.

setParameters

void setParameters(List<Expression> parameters)

Deprecated.

Sets the paramters for the function.