org.javarosa.core.model

Class ItemsetBinding

java.lang.Object

org.javarosa.core.model.ItemsetBinding

All Implemented Interfaces:

Localizable, Externalizable

public class ItemsetBinding
extends Object
implements Externalizable, Localizable

Field Summary

Fields

Modifier and Type	Field and Description
TreeReference	contextRef
IConditionExpr	copyExpr
boolean	copyMode
TreeReference	copyRef
IConditionExpr	labelExpr
boolean	labelIsItext
TreeReference	labelRef
IConditionExpr	nodesetExpr
TreeReference	nodesetRef note that storing both the ref and expr for everything is kind of redundant, but we're forced to since it's nearly impossible to convert between the two w/o having access to the underlying xform/xpath classes, which we don't from the core model project
boolean	randomize
XPathNumericLiteral	randomSeedNumericExpr
XPathPathExpr	randomSeedPathExpr
IConditionExpr	valueExpr
TreeReference	valueRef

Constructor Summary

Constructors

Constructor and Description
ItemsetBinding()

Method Summary

Modifier and Type	Method and Description
List<SelectChoice>	getChoices(FormDef formDef, TreeReference curQRef) Returns a list of SelectChoice objects based on the data in the model.
TreeReference	getDestRef()
IConditionExpr	getRelativeValue()
void	initReferences(QuestionDef q)
void	localeChanged(String locale, Localizer localizer) Updates the current object with the locate given.
void	readExternal(DataInputStream in, PrototypeFactory pf)
void	writeExternal(DataOutputStream out)

Methods inherited from class java.lang.Object

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

Field Detail

nodesetRef

public TreeReference nodesetRef

note that storing both the ref and expr for everything is kind of redundant, but we're forced to since it's nearly impossible to convert between the two w/o having access to the underlying xform/xpath classes, which we don't from the core model project

nodesetExpr

public IConditionExpr nodesetExpr

contextRef

public TreeReference contextRef

labelRef

public TreeReference labelRef

labelExpr

public IConditionExpr labelExpr

labelIsItext

public boolean labelIsItext

copyMode

public boolean copyMode

copyExpr

public IConditionExpr copyExpr

copyRef

public TreeReference copyRef

valueRef

public TreeReference valueRef

valueExpr

public IConditionExpr valueExpr

randomize

public boolean randomize

randomSeedNumericExpr

public XPathNumericLiteral randomSeedNumericExpr

randomSeedPathExpr

public XPathPathExpr randomSeedPathExpr

Constructor Detail

ItemsetBinding

public ItemsetBinding()

Method Detail

getChoices

public List<SelectChoice> getChoices(FormDef formDef,
                                     TreeReference curQRef)

Returns a list of SelectChoice objects based on the data in the model. If any of the itemset expression triggers or the random seed have changed since the last request, a new list will be computed which may be time consuming. Otherwise, a cached list is returned. SIDE EFFECT: any item currently selected as part of the current question's answer that is no longer part of the new filtered list is removed and the new answer is saved back to the model.

localeChanged

public void localeChanged(String locale,
                          Localizer localizer)

Description copied from interface: Localizable

Updates the current object with the locate given.

Specified by:

localeChanged in interface Localizable

getDestRef

public TreeReference getDestRef()

getRelativeValue

public IConditionExpr getRelativeValue()

initReferences

public void initReferences(QuestionDef q)

readExternal

public void readExternal(DataInputStream in,
                         PrototypeFactory pf)
                  throws IOException,
                         DeserializationException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

DeserializationException

writeExternal

public void writeExternal(DataOutputStream out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException