Package org.faktorips.codegen.dthelpers.joda

Class BaseJodaDatatypeHelper

java.lang.Object

org.faktorips.codegen.dthelpers.AbstractDatatypeHelper

org.faktorips.codegen.dthelpers.AbstractTimeHelper

org.faktorips.codegen.dthelpers.joda.BaseJodaDatatypeHelper

All Implemented Interfaces:

BaseDatatypeHelper<JavaCodeFragment>, DatatypeHelper

Direct Known Subclasses:

LocalDateHelper, LocalDateTimeHelper, LocalTimeHelper, MonthDayHelper

public class BaseJodaDatatypeHelper
extends AbstractTimeHelper

Base class for Joda-Time DatatypeHelper implementations

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ORG_FAKTORIPS_UTIL_JODA_UTIL
protected static final String	ORG_JODA_TIME_FORMAT_ISO_DATE_TIME_FORMAT

Fields inherited from interface org.faktorips.codegen.DatatypeHelper

BIG_DECIMAL, BOOLEAN, DECIMAL, INTEGER, LONG, MONEY, PRIMITIVE_BOOLEAN, PRIMITIVE_INTEGER, STRING

Constructor Summary

Constructors

Constructor	Description
BaseJodaDatatypeHelper(String className, String parseMethod)
BaseJodaDatatypeHelper(Datatype datatype, String className, String parseMethod)

Method Summary

Modifier and Type	Method	Description
protected void	appendToStringParameter(JavaCodeFragment fragment)	Allows subclasses to add parameters to the toString() method.
String	getJavaClassName()	Returns the qualified Java class name the datatype represents.
JavaCodeFragment	getToStringExpression(String fieldName)	Returns a JavaCodeFragment containing the code for converting the value (of the given field) to a string representation with respect to its data type.
JavaCodeFragment	nullExpression()	Returns "null".
protected JavaCodeFragment	valueOfExpression(String expression)	This method is supposed to be overridden by subclasses.

Methods inherited from class org.faktorips.codegen.dthelpers.AbstractTimeHelper

newInstance

Methods inherited from class org.faktorips.codegen.dthelpers.AbstractDatatypeHelper

createCastExpression, getDatatype, getRangeJavaClassName, newEnumValueSetInstance, newEnumValueSetInstance, newInstanceFromExpression, newInstanceFromExpression, newRangeInstance, newSafeCopy, referenceOrSafeCopyIfNeccessary, setDatatype

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.faktorips.codegen.DatatypeHelper

getValueSetJavaClassName, newEnumValueSetInstance, newValueInstance

Field Details

ORG_FAKTORIPS_UTIL_JODA_UTIL

public static final String ORG_FAKTORIPS_UTIL_JODA_UTIL

See Also:

• Constant Field Values

ORG_JODA_TIME_FORMAT_ISO_DATE_TIME_FORMAT

protected static final String ORG_JODA_TIME_FORMAT_ISO_DATE_TIME_FORMAT

See Also:

• Constant Field Values

Constructor Details

BaseJodaDatatypeHelper

public BaseJodaDatatypeHelper(Datatype datatype,
 String className,
 String parseMethod)

BaseJodaDatatypeHelper

public BaseJodaDatatypeHelper(String className,
 String parseMethod)

Method Details

getJavaClassName

public String getJavaClassName()

Description copied from interface: DatatypeHelper

Returns the qualified Java class name the datatype represents.

valueOfExpression

protected JavaCodeFragment valueOfExpression(String expression)

Description copied from class: AbstractDatatypeHelper

This method is supposed to be overridden by subclasses.

It is used within the newInstanceFromExpression(String) method. It returns a JavaCodeFragment with sourcecode that creates an instance of the datatype's Java class with the given expression.

If the expression is null the fragment's sourcecode is either the String "null" or the sourcecode to get an instance of the appropriate null object. Preconditions: Expression may not be null or empty. When evaluated the expression must return a String.

Specified by:

valueOfExpression in class AbstractDatatypeHelper

getToStringExpression

public JavaCodeFragment getToStringExpression(String fieldName)

Description copied from interface: DatatypeHelper

Returns a JavaCodeFragment containing the code for converting the value (of the given field) to a string representation with respect to its data type. The String must be built so that it can be read using the valueOf-Expression. If the value is null, the toString-code will yield null as a result.

The default implementation will call the values toString() method or return null . The default implementation for generic (extensible) data types will call the method defined using setToStringMethodName(). Custom DatatypeHelpers may override.

Specified by:

getToStringExpression in interface BaseDatatypeHelper<JavaCodeFragment>

Specified by:

getToStringExpression in interface DatatypeHelper

Overrides:

getToStringExpression in class AbstractDatatypeHelper

Parameters:

fieldName - the name of the field in the generated class that should be converted to a string

Returns:

a JavaCodeFragment containing the toString() code.

appendToStringParameter

protected void appendToStringParameter(JavaCodeFragment fragment)

Allows subclasses to add parameters to the toString() method.

Parameters:

fragment - the fragment to append to

nullExpression

public JavaCodeFragment nullExpression()

Description copied from class: AbstractDatatypeHelper

Returns "null". Returns a JavaCodeFragment with sourcecode that is either the String "null" or the sourcecode to get an instance of the appropriate null object.

Specified by:

nullExpression in interface BaseDatatypeHelper<JavaCodeFragment>

Specified by:

nullExpression in interface DatatypeHelper

Overrides:

nullExpression in class AbstractDatatypeHelper