local.tomas.expr
Class SubstrFunctionTerm

java.lang.Object
  local.tomas.expr.FunctionCall
      local.tomas.expr.SubstrFunctionTerm

All Implemented Interfaces:

Serializable, Expression

public class SubstrFunctionTerm
extends FunctionCall
implements Expression

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 local.tomas.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

Description copied from interface: Expression

Handle visit of ExpressionWalker.

Specified by:

greet in interface Expression

Parameters:

visitor - the ExpressionWalker visiting this object

arg - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException