org.ucl.xpath.function
Class OpUnion

java.lang.Object
  org.ucl.xpath.function.Function
      org.ucl.xpath.function.OpUnion

public class OpUnion

extends Function

Support for Union operation.

Field Summary

Fields inherited from class org.ucl.xpath.function.Function

_arity, _fl, _name

Constructor Summary

OpUnion()
Constructor for OpUnion.

Method Summary

ResultSequence	evaluate(java.util.Collection args) Evaluate arguments.
static java.util.Collection	expected_args() Obtain a list of expected arguments.
static ResultSequence	op_union(java.util.Collection args) Op-Union operation.

Methods inherited from class org.ucl.xpath.function.Function

arity, convert_argument, convert_arguments, dynamic_context, name, set_function_library, signature, signature, signature, static_context

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OpUnion

public OpUnion()

Constructor for OpUnion.

Method Detail

evaluate

public ResultSequence evaluate(java.util.Collection args)
                        throws DynamicError

Evaluate arguments.

Specified by:

evaluate in class Function

Parameters:

args - argument expressions.

Returns:

Result of evaluation.

Throws:

DynamicError - Dynamic error.

op_union

public static ResultSequence op_union(java.util.Collection args)
                               throws DynamicError

Op-Union operation.

Parameters:

args - Result from the expressions evaluation.

Returns:

Result of operation.

Throws:

DynamicError - Dynamic error.

expected_args

public static java.util.Collection expected_args()

Obtain a list of expected arguments.

Returns:

Result of operation.