ilAssLacCompositeBuilder Class Reference

Class CompositeBuilder. More...

Collaboration diagram for ilAssLacCompositeBuilder:

Public Member Functions
	__construct ()
	Construct requirements. More...
	create ($nodes)

Protected Attributes
	$operators = array('<=','<','=','>=','>','<>','&','|')

Private Member Functions
	getExpression (array $node, $index)
	Manufacure an expression from the delivered node and the index. More...

Detailed Description

Class CompositeBuilder.

Date: 27.03.13 Time: 12:18

Author

Thomas Joußen tjous.nosp@m.sen@.nosp@m.datab.nosp@m.ay.d.nosp@m.e

Definition at line 10 of file ilAssLacCompositeBuilder.php.

Constructor & Destructor Documentation

__construct()

ilAssLacCompositeBuilder::__construct

(

)

Construct requirements.

Definition at line 24 of file ilAssLacCompositeBuilder.php.

    {
        include_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacOperationManufacturer.php';
        include_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacExpressionManufacturer.php';
    }

Member Function Documentation

create()

ilAssLacCompositeBuilder::create

(

$nodes

)

Parameters

array

$nodes

Returns

array

Definition at line 35 of file ilAssLacCompositeBuilder.php.

References $i, $index, $key, $nodes, ilAssLacOperationManufacturer\_getInstance(), and getExpression().

    {
        if ($nodes['type'] == 'group') {
            foreach ($nodes['nodes'] as $key => $child) {
                $nodes['nodes'][$key] = $this->create($child);
            }

            foreach ($this->operators as $next_operator) {
                do {
                    $index = -1;
                    for ($i = 0; $i < count($nodes['nodes']); $i++) {
                        if (!is_object($nodes['nodes'][$i]) && $nodes['nodes'][$i]['type'] == 'operator' && $nodes['nodes'][$i]['value'] == $next_operator) {
                            $index = $i;
                            break;
                        }
                    }
                    if ($index >= 0) {
                        $operation_manufacture = ilAssLacOperationManufacturer::_getInstance();
                        $operator = $operation_manufacture->manufacture($nodes['nodes'][$index]['value']);

                        $operator->setNegated($nodes["negated"]);
                        $operator->addNode($this->getExpression($nodes, $index - 1));
                        $operator->addNode($this->getExpression($nodes, $index + 1));

                        $new_nodes = array_slice($nodes['nodes'], 0, $index - 1);
                        $new_nodes[] = $operator;
                        $nodes['nodes'] = array_merge($new_nodes, array_slice($nodes['nodes'], $index + 2));
                    }
                } while ($index >= 0);
            }
            return $nodes['nodes'][0];
        }
        return $nodes;
    }

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getExpression()

ilAssLacCompositeBuilder::getExpression ( array  $node,   $index  )

private

Manufacure an expression from the delivered node and the index.

If an expression already exist in the node for
for the delivered index, this function will return the existing expression

Parameters

array	$node
int	$index

Returns

ilAssLacCompositeInterface

Definition at line 79 of file ilAssLacCompositeBuilder.php.

References $index, and ilAssLacExpressionManufacturer\_getInstance().

Referenced by create().

    {
        $manufacturer = ilAssLacExpressionManufacturer::_getInstance();

        $expression = $node['nodes'][$index];
        if (!($expression instanceof ilAssLacAbstractComposite)) {
            $expression = $manufacturer->manufacture($node['nodes'][$index]['value']);
        }
        return $expression;
    }

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Field Documentation

$operators

ilAssLacCompositeBuilder::$operators = array('<=','<','=','>=','>','<>','&','|')

protected

Definition at line 19 of file ilAssLacCompositeBuilder.php.

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The documentation for this class was generated from the following file:

• Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/ilAssLacCompositeBuilder.php