| java.lang.Object com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin com.hp.hpl.jena.reasoner.rulesys.builtins.StrConcat
All known Subclasses: com.hp.hpl.jena.reasoner.rulesys.builtins.UriConcat,
StrConcat | public class StrConcat extends BaseBuiltin (Code) | | Builtin which concatenates a set of strings. It binds the last argument to
a plain literal which is the concatenation of all the preceeding arguments.
For a literal argument we use its lexcical form, for a URI argument its URI,
for a bNode argument its internal ID.
author: Dave Reynolds version: $Revision: 1.2 $ |
Method Summary | |
public boolean | bodyCall(Node[] args, int length, RuleContext context) This method is invoked when the builtin is called in a rule body. | public int | getArgLength() Return the expected number of arguments for this functor or 0 if the number is flexible. | public String | getName() Return a name for this builtin, normally this will be the name of the
functor that will be used to invoke it. | protected String | lex(Node n, RuleContext context) |
bodyCall | public boolean bodyCall(Node[] args, int length, RuleContext context)(Code) | | This method is invoked when the builtin is called in a rule body.
Parameters: args - the array of argument values for the builtin, this is an array of Nodes, some of which may be Node_RuleVariables. Parameters: length - the length of the argument list, may be less than the length of the args arrayfor some rule engines Parameters: context - an execution context giving access to other relevant data return true if the buildin predicate is deemed to have succeeded inthe current environment |
getArgLength | public int getArgLength()(Code) | | Return the expected number of arguments for this functor or 0 if the number is flexible.
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getName | public String getName()(Code) | | Return a name for this builtin, normally this will be the name of the
functor that will be used to invoke it.
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Fields inherited from com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin | final public static String BASE_URI(Code)(Java Doc)
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