Package net.sf.saxon.functions
Class StandardFunction.Entry
- java.lang.Object
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- net.sf.saxon.functions.StandardFunction.Entry
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- All Implemented Interfaces:
java.io.Serializable
- Enclosing class:
- StandardFunction
public static class StandardFunction.Entry extends java.lang.Object implements java.io.Serializable
An entry in the table describing the properties of a function- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description SequenceType[]
argumentTypes
An array holding the types of the arguments to the functionint
cardinality
The cardinality of the result of the functionjava.lang.Class
implementationClass
The class containing the implementation of this function (always a subclass of SystemFunction)ItemType
itemType
The item type of the result of the functionint
maxArguments
The maximum number of arguments permittedint
minArguments
The minimum number of arguments requiredjava.lang.String
name
The name of the function: a local name in the case of functions in the standard library, or a name with the conventional prefix "saxon:" in the case of Saxon extension functionsint
opcode
Some classes support more than one function.Value[]
resultIfEmpty
An array holding, for each declared argument, the value that is to be returned if an empty sequence as the value of this argument allows the result to be determined irrespective of the values of the other arguments; null if there is no such calculation possible
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Constructor Summary
Constructors Constructor Description Entry()
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Field Detail
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name
public java.lang.String name
The name of the function: a local name in the case of functions in the standard library, or a name with the conventional prefix "saxon:" in the case of Saxon extension functions
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implementationClass
public java.lang.Class implementationClass
The class containing the implementation of this function (always a subclass of SystemFunction)
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opcode
public int opcode
Some classes support more than one function. In these cases the particular function is defined by an integer opcode, whose meaning is local to the implementation class.
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minArguments
public int minArguments
The minimum number of arguments required
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maxArguments
public int maxArguments
The maximum number of arguments permitted
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itemType
public ItemType itemType
The item type of the result of the function
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cardinality
public int cardinality
The cardinality of the result of the function
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argumentTypes
public SequenceType[] argumentTypes
An array holding the types of the arguments to the function
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resultIfEmpty
public Value[] resultIfEmpty
An array holding, for each declared argument, the value that is to be returned if an empty sequence as the value of this argument allows the result to be determined irrespective of the values of the other arguments; null if there is no such calculation possible
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