org.javarosa.core.model

Class DataBinding

java.lang.Object

org.javarosa.core.model.DataBinding

All Implemented Interfaces:

Externalizable

public class DataBinding
extends Object
implements Externalizable

A data binding is an object that represents how a data element is to be used in a form entry interaction.

It contains a reference to where the data should be retreived and stored, as well as the preload parameters, and the conditional logic for the question.

The class relies on any Data References that are used in a form to be registered with the FormDefRMSUtility's prototype factory in order to properly deserialize.

Author:

Drew Roos

Field Summary

Fields

Modifier and Type	Field and Description
Triggerable	calculate
IConditionExpr	constraint
String	constraintMessage
boolean	readonlyAbsolute
Triggerable	readonlyCondition
Triggerable	relevancyCondition
boolean	relevantAbsolute
boolean	requiredAbsolute
Triggerable	requiredCondition

Constructor Summary

Constructors

Constructor and Description
DataBinding()

Method Summary

Modifier and Type	Method and Description
List<TreeElement>	getAdditionalAttributes()
int	getDataType()
String	getId()
String	getPreload()
String	getPreloadParams()
IDataReference	getReference()
void	readExternal(DataInputStream in, PrototypeFactory pf)
void	setAdditionalAttribute(String namespace, String name, String value)
void	setDataType(int dataType)
void	setId(String id)
void	setPreload(String preload)
void	setPreloadParams(String preloadParams)
void	setReference(IDataReference ref)
void	writeExternal(DataOutputStream out)

Methods inherited from class java.lang.Object

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

Field Detail

relevancyCondition

public Triggerable relevancyCondition

relevantAbsolute

public boolean relevantAbsolute

requiredCondition

public Triggerable requiredCondition

requiredAbsolute

public boolean requiredAbsolute

readonlyCondition

public Triggerable readonlyCondition

readonlyAbsolute

public boolean readonlyAbsolute

constraint

public IConditionExpr constraint

calculate

public Triggerable calculate

constraintMessage

public String constraintMessage

Constructor Detail

DataBinding

public DataBinding()

Method Detail

getReference

public IDataReference getReference()

Returns:

The data reference

setReference

public void setReference(IDataReference ref)

Parameters:

ref - the reference to set

getId

public String getId()

Returns:

the id

setId

public void setId(String id)

Parameters:

id - the id to set

getDataType

public int getDataType()

Returns:

the dataType

setDataType

public void setDataType(int dataType)

Parameters:

dataType - the dataType to set

getPreload

public String getPreload()

Returns:

the preload

setPreload

public void setPreload(String preload)

Parameters:

preload - the preload to set

getPreloadParams

public String getPreloadParams()

Returns:

the preloadParams

setPreloadParams

public void setPreloadParams(String preloadParams)

Parameters:

preloadParams - the preloadParams to set

setAdditionalAttribute

public void setAdditionalAttribute(String namespace,
                                   String name,
                                   String value)

getAdditionalAttributes

public List<TreeElement> getAdditionalAttributes()

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