Package org.faktorips.codegen.dthelpers

Class ArrayOfValueDatatypeHelper

java.lang.Object

org.faktorips.codegen.dthelpers.AbstractDatatypeHelper

org.faktorips.codegen.dthelpers.ArrayOfValueDatatypeHelper

All Implemented Interfaces:

BaseDatatypeHelper<JavaCodeFragment>, DatatypeHelper

public class ArrayOfValueDatatypeHelper
extends AbstractDatatypeHelper

A helper class for ArrayOfValueDatatype. ValueOf and newInstance expressions are not supported by this helper. A call to these method returns a "null" fragment.

Author:

Peter Erzberger

Field Summary

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
ArrayOfValueDatatypeHelper(ArrayOfValueDatatype datatype, DatatypeHelper elementDatatypeHelper)

Method Summary

Modifier and Type	Method	Description
ArrayOfValueDatatype	getDatatype()	Returns the datatype this is a helper for.
String	getJavaClassName()	Returns the qualified Java class name the datatype represents.
JavaCodeFragment	newInstance(String value)	Returns a "null" fragment.
void	setDatatype(Datatype datatype)	Sets the datatype this is a helper for.
protected JavaCodeFragment	valueOfExpression(String expression)	Returns a "null" fragment.

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

createCastExpression, getRangeJavaClassName, getToStringExpression, newEnumValueSetInstance, newEnumValueSetInstance, newInstanceFromExpression, newInstanceFromExpression, newRangeInstance, newSafeCopy, nullExpression, referenceOrSafeCopyIfNeccessary

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

Constructor Details

ArrayOfValueDatatypeHelper

public ArrayOfValueDatatypeHelper(ArrayOfValueDatatype datatype,
 DatatypeHelper elementDatatypeHelper)

Method Details

setDatatype

public void setDatatype(Datatype datatype)

Description copied from interface: DatatypeHelper

Sets the datatype this is a helper for. Introduced to enable setter based dependency injection, needed for example for Eclipse's extension point mechanism.

Specified by:

setDatatype in interface BaseDatatypeHelper<JavaCodeFragment>

Specified by:

setDatatype in interface DatatypeHelper

Overrides:

setDatatype in class AbstractDatatypeHelper

getDatatype

public ArrayOfValueDatatype getDatatype()

Description copied from interface: DatatypeHelper

Returns the datatype this is a helper for.

Specified by:

getDatatype in interface BaseDatatypeHelper<JavaCodeFragment>

Specified by:

getDatatype in interface DatatypeHelper

Overrides:

getDatatype in class AbstractDatatypeHelper

getJavaClassName

public String getJavaClassName()

Description copied from interface: DatatypeHelper

Returns the qualified Java class name the datatype represents.

valueOfExpression

protected JavaCodeFragment valueOfExpression(String expression)

Returns a "null" fragment. 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

newInstance

public JavaCodeFragment newInstance(String value)

Returns a "null" fragment. Returns a JavaCodeFragment with sourcecode that creates an instance of the datatype's Java class with the given value. If the value is null the fragment's sourcecode is either the String "null" or the sourcecode to get an instance of the appropriate null object.