Package org.geotools.filter.function
Class DefaultFunctionFactory
- Object
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- DefaultFunctionFactory
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- All Implemented Interfaces:
FunctionFactory
public class DefaultFunctionFactory extends Object implements FunctionFactory
Filter function factory that uses the service provider interface (SPI) lookup mechanism to create functions.DefaultFunctionFactory is responsible for collection
FunctionExpression
implementations into a FunctionFactory.- Author:
- Justin Deoliveira, OpenGeo
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Constructor Summary
Constructors Constructor Description DefaultFunctionFactory()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Function
function(String name, List<Expression> parameters, Literal fallback)
Returns a function with the specified name.Function
function(Name name, List<Expression> parameters, Literal fallback)
Returns a function with the specified name.List<FunctionName>
getFunctionNames()
Returns the list of function names the factory provides.
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Method Detail
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getFunctionNames
public List<FunctionName> getFunctionNames()
Description copied from interface:FunctionFactory
Returns the list of function names the factory provides.- Specified by:
getFunctionNames
in interfaceFunctionFactory
- Returns:
- A list of function names, possibly empty, never null.
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function
public Function function(String name, List<Expression> parameters, Literal fallback)
Description copied from interface:FunctionFactory
Returns a function with the specified name.- Specified by:
function
in interfaceFunctionFactory
- Parameters:
name
- The name of the functionparameters
- Variable list of expression arguments for the function.fallback
- A fallback literal to use in cases where the function does not exist or can not be created. This argument may benull
.
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function
public Function function(Name name, List<Expression> parameters, Literal fallback)
Description copied from interface:FunctionFactory
Returns a function with the specified name.- Specified by:
function
in interfaceFunctionFactory
- Parameters:
name
- The name of the functionparameters
- Variable list of expression arguments for the function.fallback
- A fallback literal to use in cases where the function does not exist or can not be created. This argument may benull
.
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