com.sapportals.wcm.repository

Class Selector

java.lang.Object
  com.sapportals.wcm.repository.Selector

public final class Selector

extends Object

Copyright SAP AG 2004

Since:

EP5, SP6, Patch1, Hotfix1; EP6, SP2_CP Selector allows to specify hierarchical queries to define which set of resources should be retrieved from the repository framework. A selector might hold a list of other selector instances as well as PropertySelectorItem instances. Its type constants define how selection instances are combined.

Field Summary

static com.sapportals.wcm.repository.Selector.Type	SELECTOR_AND
static com.sapportals.wcm.repository.Selector.Type	SELECTOR_OR
static int	SELECTOR_TYPE_AND
static int	SELECTOR_TYPE_OR

Constructor Summary

Selector()
standard constructor - will create a new class instance with selectortype SELECTOR_AND.

Selector(com.sapportals.wcm.repository.Selector.Type type)
creates a new class instance with the specified selectortype.

Method Summary

void	addSelector(boolean include, IProperty property) creates a new PropertySelectorItem using the specified parameters
void	addSelector(PropertySelectorItem selector)
void	addSelector(Selector selector)
boolean	check(IPropertyMap properties) checks, if the provided map of properties will pass all PropertySelectorItem instances defined within this class.
PropertyNameList	getPropertyNameList()
com.sapportals.wcm.repository.Selector.Type	getSelectorType()
boolean	isEmpty()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

SELECTOR_TYPE_AND

public static final int SELECTOR_TYPE_AND

See Also:

Constant Field Values

SELECTOR_TYPE_OR

public static final int SELECTOR_TYPE_OR

See Also:

Constant Field Values

SELECTOR_AND

public static final com.sapportals.wcm.repository.Selector.Type SELECTOR_AND

SELECTOR_OR

public static final com.sapportals.wcm.repository.Selector.Type SELECTOR_OR

Constructor Detail

Selector

public Selector(com.sapportals.wcm.repository.Selector.Type type)

creates a new class instance with the specified selectortype.

Selector

public Selector()

standard constructor - will create a new class instance with selectortype SELECTOR_AND.

Method Detail

addSelector

public void addSelector(boolean include,
                        IProperty property)

creates a new PropertySelectorItem using the specified parameters

Parameters:

include - the include mode for the PropertySelectorItem

property - the property for the PropertySelectorItem - must not be null

addSelector

public void addSelector(PropertySelectorItem selector)

Parameters:

selector - is added to the list of selectors - must not be null

addSelector

public void addSelector(Selector selector)

Parameters:

selector - is added to the list of selectors - must not be null

getSelectorType

public com.sapportals.wcm.repository.Selector.Type getSelectorType()

isEmpty

public boolean isEmpty()

Returns:

flag, stating, if any Selector or PropertySelectorItem has been added to this class. If not, the method will return true.

getPropertyNameList

public PropertyNameList getPropertyNameList()

Returns:

a list containing all the names of the properties that are used within the PropertySelectorItem instances that have been added to this instance. Also the Property names of PropertySelectorItem instances that are included in the Selector instances added to this instance are added. The current implmentation does not check for duplicates within the list.
Might return an empty list, but never null

toString

public String toString()

check

public boolean check(IPropertyMap properties)
              throws ResourceException

checks, if the provided map of properties will pass all PropertySelectorItem instances defined within this class. Depending on the combination of these instances and other Selector instances within this class, not all tests will be executed to calculate the result of this method. If, for example, already the first test fails and the Selector.Type of this class is set to SELECTOR_AND, the method will return false without evaluating further properties

Parameters:

properties - the properties to check, must not be null, but might be empty

Returns:

flag, stating if the properties passed this check or not

Throws:

ResourceException