com.fdsapi.arrays
Class ConditionalBase

java.lang.Object
  |
  +--com.fdsapi.arrays.ConditionalBase

All Implemented Interfaces:

Conditional

Direct Known Subclasses:

ConditionalBaseComparator, ConditionalEquals

public abstract class ConditionalBase

extends java.lang.Object

implements Conditional

Abstract base class for other Conditional objects. This interface is used in where clauses to return true if the row in the array should be kept in the resulting array.

View Code

Field Summary

protected int

col Column number to be used in the comparsison

Constructor Summary

ConditionalBase(int col)
A Constructor that takes the column to be compared in the decorator

ConditionalBase(int col, Conditional nextConditional)
Contructor that takes the column to be compared as well as the next conditional in the decorator chain.

Method Summary

protected java.lang.String	getConditionalString(java.lang.Object comparisonValue) Display a String representation of this Conditional.
protected Conditional	getNextConditional() This method gets the next Conditional object in the decorator chain
boolean	isTrue(java.lang.Object[] row) This method implements the Template design pattern.
protected abstract boolean	isTrueThis(java.lang.Object[] row) This method must be implemented in child classes to specify if the row matches the comparison value

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.fdsapi.arrays.Conditional

getType

Field Detail

col

protected int col

Column number to be used in the comparsison

Constructor Detail

ConditionalBase

public ConditionalBase(int col,
                       Conditional nextConditional)

Contructor that takes the column to be compared as well as the next conditional in the decorator chain.

ConditionalBase

public ConditionalBase(int col)

A Constructor that takes the column to be compared in the decorator

Method Detail

isTrue

public boolean isTrue(java.lang.Object[] row)

This method implements the Template design pattern. It takes the row as input and calls this classes logic as well as the next Conditional in the decorator chains isTrue(...) method. Any class that inherits from this one must implement the isTrueThis(...) method to determine if the passed in row should be kept.

Specified by:

isTrue in interface Conditional

isTrueThis

protected abstract boolean isTrueThis(java.lang.Object[] row)

This method must be implemented in child classes to specify if the row matches the comparison value

getNextConditional

protected Conditional getNextConditional()

This method gets the next Conditional object in the decorator chain

getConditionalString

protected java.lang.String getConditionalString(java.lang.Object comparisonValue)

Display a String representation of this Conditional.