eworks.eRQL.model
Class Junction

java.lang.Object
  eworks.eRQL.model.ModelComponent
      eworks.eRQL.model.Value
          eworks.eRQL.model.Junction

Direct Known Subclasses:

Conjunction, Disjunction

public abstract class Junction

extends Value

Abstract base class for combining operators like a conjunction or a disjunction.

Version:

1.00 (2003-11-03)

Author:

Fabian Wleklinski (fabian@wleklinski.de)

Field Summary

protected Value[]

values The operands that are associated with this junction.

Constructor Summary

Junction()
Creates a new and empty junction.

Junction(Value value)
Creates a new junction and initializes it with a single value.

Junction(Value[] values)
Creates a new junction and initializes it with some values.

Junction(Value value1, Value value2)
Creates a new junction and initializes it with two single values.

Method Summary

void	add(Value value) Adds a new value to this junction.
Value	compact() Compacts this junction and returns the result.
String	toString() Returns a string representation of this junction.

Methods inherited from class eworks.eRQL.model.Value

query

Methods inherited from class java.lang.Object

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

Field Detail

values

protected Value[] values

The operands that are associated with this junction.

Constructor Detail

Junction

public Junction()

Creates a new and empty junction.

Junction

public Junction(Value[] values)

Creates a new junction and initializes it with some values.

Parameters:

values - The values for the initialization of the junction.

Junction

public Junction(Value value)

Creates a new junction and initializes it with a single value.

Parameters:

value - The value for the initialization of the junction.

Junction

public Junction(Value value1,
                Value value2)

Creates a new junction and initializes it with two single values.

Parameters:

value1 - The first value for the initialization of the junction.

value2 - The first value for the initialization of the junction.

Method Detail

add

public void add(Value value)

Adds a new value to this junction.

Parameters:

value - The first value for the initialization of the junction.

compact

public Value compact()

Compacts this junction and returns the result.

Overrides:

compact in class Value

Returns:

the compacted junction.

toString

public String toString()

Returns a string representation of this junction.

Overrides:

toString in class ModelComponent

Returns:

a string representation of this junction.