com.satline.expr
Class SubstrFunctionTerm

java.lang.Object
  com.satline.expr.FunctionCall
      com.satline.expr.SubstrFunctionTerm

All Implemented Interfaces:

Expression, java.io.Serializable

public class SubstrFunctionTerm
extends FunctionCall

This class defines a substring function term within an expression.

Author:

Teubner

See Also:

Serialized Form

Constructor Summary

SubstrFunctionTerm()
Default constructor.

SubstrFunctionTerm(Expression str, Expression start)
Construct from field values.

SubstrFunctionTerm(Expression str, Expression start, Expression length)
Construct from field values.

Method Summary

<E,F> E

greet(ExpressionWalker<E,F> visitor, F arg) Handle visit of ExpressionWalker.

Methods inherited from class com.satline.expr.FunctionCall

addArgument, equals, getArguments, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

SubstrFunctionTerm

public SubstrFunctionTerm()

Default constructor.

SubstrFunctionTerm

public SubstrFunctionTerm(Expression str,
                          Expression start)

Construct from field values.

Parameters:

str - the string

start - starting position

length - length of substring

SubstrFunctionTerm

public SubstrFunctionTerm(Expression str,
                          Expression start,
                          Expression length)

Construct from field values.

Parameters:

str - the string

start - starting position

length - length of substring

Method Detail

greet

public <E,F> E greet(ExpressionWalker<E,F> visitor,
                     F arg)
        throws ExpressionException

Handle visit of ExpressionWalker.

Parameters:

visitor - - the ExpressionWalker visiting this object

arg - - implementation dependent argument

Returns:

implementation dependent value

Throws:

ExpressionException