org.springmodules.validation.valang.predicates
Class AbstractCompareTestPredicate

java.lang.Object
  org.springmodules.validation.valang.predicates.AbstractPropertyPredicate
      org.springmodules.validation.valang.predicates.AbstractCompareTestPredicate

All Implemented Interfaces:

org.apache.commons.collections.Predicate

Direct Known Subclasses:

GreaterThanOrEqualTestPredicate, GreaterThanTestPredicate, LessThanOrEqualTestPredicate, LessThanTestPredicate

public abstract class AbstractCompareTestPredicate
extends AbstractPropertyPredicate

Base class for comparing less than and greater than comparisons.

Author:

David Winterfeldt

Constructor Summary

AbstractCompareTestPredicate(Function leftFunction, Operator operator, Function rightFunction, int line, int column, String operatorSymbol)
Constructor taking two functions and an operator.

Method Summary

protected abstract boolean	doEvaluate(BigDecimal leftValue, BigDecimal rightValue) Evaluates a BigDecimal and is called by evaluate.
protected abstract boolean	doEvaluate(Date leftValue, Date rightValue) Evaluates a Date and is called by evaluate.
boolean	evaluate(Object target) The evaluate method takes the result of both functions and tests with the operator.

Methods inherited from class org.springmodules.validation.valang.predicates.AbstractPropertyPredicate

getArray, getColumn, getIterator, getLeftFunction, getLine, getOperator, getRightFunction

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCompareTestPredicate

public AbstractCompareTestPredicate(Function leftFunction,
                                    Operator operator,
                                    Function rightFunction,
                                    int line,
                                    int column,
                                    String operatorSymbol)

Constructor taking two functions and an operator.

Parameters:

leftFunction - the left function

operator - the operator.

Method Detail

evaluate

public final boolean evaluate(Object target)

The evaluate method takes the result of both functions and tests with the operator.

Specified by:

evaluate in interface org.apache.commons.collections.Predicate

Specified by:

evaluate in class AbstractPropertyPredicate

Parameters:

target - The target bean.

Returns:

boolean Whether or not the test passed.

doEvaluate

protected abstract boolean doEvaluate(BigDecimal leftValue,
                                      BigDecimal rightValue)

Evaluates a BigDecimal and is called by evaluate.

doEvaluate

protected abstract boolean doEvaluate(Date leftValue,
                                      Date rightValue)

Evaluates a Date and is called by evaluate.