types/selectors/BaseSelectorContainer.php
This is the base class for selectors that can contain other selectors.
- Author
- Bruce Atherton (Ant)
- Package
- phing.types.selectors
\BaseSelectorContainer
This is the base class for selectors that can contain other selectors.
This class handles the common description attribute and provides a default implementation for reference handling and checking for circular references that is appropriate for types that can not be nested inside elements of the same type (i.e. patternset but not path)
- Parent(s)
- \SelectorContainer < \DataType < \ProjectComponent
- Children
- \OrSelector
- \AndSelector
- \NoneSelector
- \MajoritySelector
- Author
- Bruce Atherton (Ant)
- Version
- $Id$
Properties

boolean
$checked= 'true'
Are we sure we don't hold circular references?
Inherited from: \DataType::$$checked\BaseSelector::$$checkedSubclasses are responsible for setting this value to false if we'd need to investigate this condition (usually because a child element has been added that is a subclass of DataType).
trueDetails- Type
- boolean
- Inherited_from
- \DataType::$$checked
- Inherited_from
- \BaseSelector::$$checked

$description= 'null'
The descriptin the user has set.
Inherited from: \DataType::$$description\BaseSelector::$$descriptionnullDetails- Type
- n/a
- Inherited_from
- \DataType::$$description
- Inherited_from
- \BaseSelector::$$description

$errmsg= 'null'
nullDetails- Type
- n/a
- Inherited_from
- \BaseSelector::$$errmsg

\Project
$project= 'null'
Holds a reference to the project that a project component (a task, a target, etc.) belongs to
A reference to the current project instanceInherited from: \ProjectComponent::$$project\DataType::$$project\BaseSelector::$$projectnullDetails- Type
- \Project
- Inherited_from
- \ProjectComponent::$$project
- Inherited_from
- \DataType::$$project
- Inherited_from
- \BaseSelector::$$project

$ref= 'null'
Value to the refid attribute. Type of Reference
Inherited from: \DataType::$$ref\BaseSelector::$$refnullDetails- Type
- n/a
- Inherited_from
- \DataType::$$ref
- Inherited_from
- \BaseSelector::$$ref
Methods

appendSelector(
\selector $selector
)
:
\theAdd a new selector into this container.
| Name | Type | Description |
|---|---|---|
| $selector | \selector | the new selector to add |
| Type | Description |
|---|---|
| \the | selector that was added |

circularReference(
)
:
voidCreates an exception that indicates the user has generated a loop of data types referencing each other.
Inherited from: \DataType::circularReference()\BaseSelector::circularReference()
dieOnCircularReference(
$stk, $p
)
:
voidCheck to see whether any DataType we hold references to is included in the Stack (which holds all DataType instances that directly or indirectly reference this instance, including this instance itself).
Inherited from: \DataType::dieOnCircularReference()\BaseSelector::dieOnCircularReference()If one is included, throw a BuildException created by circularReference
This implementation is appropriate only for a DataType that cannot hold other DataTypes as children.
The general contract of this method is that it shouldn't do anything if checked is true and set it to true on exit.
| Name | Type | Description |
|---|---|---|
| $stk | ||
| $p |

getCheckedRef(
$requiredClass, $dataTypeName
)
:
voidPerforms the check for circular references and returns the referenced object.
Inherited from: \DataType::getCheckedRef()\BaseSelector::getCheckedRef()| Name | Type | Description |
|---|---|---|
| $requiredClass | ||
| $dataTypeName |

getDescription(
)
:
voidReturn the description for the current data type.
Inherited from: \DataType::getDescription()\BaseSelector::getDescription()
getProject(
)
:
\ProjectReturns a reference to current project
Inherited from: \ProjectComponent::getProject()\DataType::getProject()\BaseSelector::getProject()| Type | Description |
|---|---|
| \Project | Reference to current porject object |

getSelectors(
$p
)
:
voidReturns a copy of the selectors as an array.
| Name | Type | Description |
|---|---|---|
| $p |

isReference(
)
:
voidHas the refid attribute of this element been set?
Inherited from: \DataType::isReference()\BaseSelector::isReference()
log(
string $msg, integer $level
=
Project::MSG_INFO
)
:
voidLogs a message with the given priority.
Inherited from: \ProjectComponent::log()\DataType::log()\BaseSelector::log()| Name | Type | Description |
|---|---|---|
| $msg | string | The message to be logged. |
| $level | integer | The message's priority at this message should have |

noChildrenAllowed(
)
:
voidCreates an exception that indicates that this XML element must not have child elements if the refid attribute is set.
Inherited from: \DataType::noChildrenAllowed()\BaseSelector::noChildrenAllowed()
parsingComplete(
)
:
voidTemplate method being called when the data type has been parsed completely.
Inherited from: \DataType::parsingComplete()\BaseSelector::parsingComplete()
setDescription(
$desc
)
:
voidSets a description of the current data type. It will be useful in commenting what we are doing.
Inherited from: \DataType::setDescription()\BaseSelector::setDescription()| Name | Type | Description |
|---|---|---|
| $desc |

setError(
\msg $msg
)
:
voidAllows all selectors to indicate a setup error. Note that only the first error message is recorded.
Inherited from: \BaseSelector::setError()| Name | Type | Description |
|---|---|---|
| $msg | \msg | The error message any BuildException should throw. |

setProject(
\Project $project
)
:
voidReferences the project to the current component.
Inherited from: \ProjectComponent::setProject()\DataType::setProject()\BaseSelector::setProject()| Name | Type | Description |
|---|---|---|
| $project | \Project | The reference to the current project |

setRefid(
\Reference $r
)
:
voidSet the value of the refid attribute.
Inherited from: \DataType::setRefid()\BaseSelector::setRefid()Subclasses may need to check whether any other attributes have been set as well or child elements have been created and thus override this method. if they do they must call parent::setRefid()
| Name | Type | Description |
|---|---|---|
| $r | \Reference |

toString(
)
:
\commaConvert the Selectors within this container to a string. This will just be a helper class for the subclasses that put their own name around the contents listed here.
| Type | Description |
|---|---|
| \comma | separated list of Selectors contained in this one |

tooManyAttributes(
)
:
voidCreates an exception that indicates that refid has to be the only attribute if it is set.
Inherited from: \DataType::tooManyAttributes()\BaseSelector::tooManyAttributes()
validate(
)
:
voidThis implementation validates the container by calling verifySettings() and then validates each contained selector provided that the selector implements the validate interface.
Ordinarily, this will validate all the elements of a selector container even if the isSelected() method of some elements is never called. This has two effects:
- Validation will often occur twice.
- Since it is not required that selectors derive from BaseSelector, there could be selectors in the container whose error conditions are not detected if their isSelected() call is never made.

verifySettings(
)
:
voidSubclasses can override this method to provide checking of their state. So long as they call validate() from isSelected(), this will be called automatically (unless they override validate()).
Implementations should check for incorrect settings and call setError() as necessary.
Inherited from: \BaseSelector::verifySettings()