student.testingsupport

Class ObjectdrawFilter.BinaryOperator

java.lang.Object

student.testingsupport.ObjectdrawFilter.Operator

student.testingsupport.ObjectdrawFilter.BinaryOperator

Enclosing class:

ObjectdrawFilter

public abstract class ObjectdrawFilter.BinaryOperator
extends ObjectdrawFilter.Operator

A non-static subclass for binary operators that implicitly captures the outer filter to which it belongs, using it as the first/left argument to the operator.

Constructor Summary

Constructors

Constructor and Description
BinaryOperator()

Method Summary

Modifier and Type	Method and Description
protected ObjectdrawFilter	applySelfTo(ObjectdrawFilter otherFilter) Implements a composite filter based on a binary operation, where the "left"/"first" filter is the parent from which this class was created, and the "right"/"second" filter is the argument supplied to this operation.
protected abstract boolean	combine(boolean leftResult, boolean rightResult) Concrete subclasses must override this to implement the appropriate logic for combining the results of the two filters being combined.
protected abstract String	description(String leftDescription, String rightDescription) Concrete subclasses must override this to implement the appropriate logic for building a description of this filter based on the descriptions of the two filters being combined.
ObjectdrawFilter	not(ObjectdrawFilter otherFilter) The "not" operator for negating an existing filter, when you want to use parentheses to group its righthand argument.

Methods inherited from class student.testingsupport.ObjectdrawFilter.Operator

colorIs, heightIs, hiddenIs, isContainedWithin, isLocatedWithin, lineEndLocationIs, lineEndLocationIs, lineStartLocationIs, lineStartLocationIs, locationIs, sizeIs, sizeIsWithin, textIs, typeIs, widthIs, xLocationIs, yLocationIs

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryOperator

public BinaryOperator()

Method Detail

not

public ObjectdrawFilter not(ObjectdrawFilter otherFilter)

The "not" operator for negating an existing filter, when you want to use parentheses to group its righthand argument. This method is designed to be used in expressions like where.nameIs("abc").and.not(enabledIs(true).or.hasFocusIs(true)). If you wish to use the .not. notation instead, leaving off the parentheses, see not(student.testingsupport.ObjectdrawFilter).

Parameters:

otherFilter - The filter to negate

Returns:

A new filter that represents a combination of the left filter with "NOT otherFilter".

applySelfTo

protected ObjectdrawFilter applySelfTo(ObjectdrawFilter otherFilter)

Implements a composite filter based on a binary operation, where the "left"/"first" filter is the parent from which this class was created, and the "right"/"second" filter is the argument supplied to this operation.

Specified by:

applySelfTo in class ObjectdrawFilter.Operator

Parameters:

otherFilter - The argument to transform (second argument, for binary operators)

Returns:

A new compound filter that represents a combination of the first and second filters.

combine

protected abstract boolean combine(boolean leftResult,
                                   boolean rightResult)

Concrete subclasses must override this to implement the appropriate logic for combining the results of the two filters being combined.

Parameters:

leftResult - The boolean result of the left filter

rightResult - The boolean result of the right filter

Returns:

The result of this combined filter.

description

protected abstract String description(String leftDescription,
                                      String rightDescription)

Concrete subclasses must override this to implement the appropriate logic for building a description of this filter based on the descriptions of the two filters being combined.

Parameters:

leftDescription - The description of the left filter

rightDescription - The description of the right filter

Returns:

The description of this combined filter.