Package org.faktorips.codegen.dthelpers

Class BigDecimalHelper

java.lang.Object

org.faktorips.codegen.dthelpers.AbstractDatatypeHelper

org.faktorips.codegen.dthelpers.BigDecimalHelper

All Implemented Interfaces:

BaseDatatypeHelper<JavaCodeFragment>, DatatypeHelper

public class BigDecimalHelper
extends AbstractDatatypeHelper

DatatypeHelper for BigDecimalDatatype.

Author:

Jan Ortmann

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
BigDecimalHelper()
BigDecimalHelper(BigDecimalDatatype datatype)

Method Summary

Modifier and Type	Method	Description
String	getJavaClassName()	Returns the qualified Java class name the datatype represents.
String	getRangeJavaClassName(boolean useTypesafeCollections)	Returns the qualified Java class name of the range class of the datatype this is a helper for.
JavaCodeFragment	newInstance(String value)	Returns a JavaCodeFragment with sourcecode that creates an instance of the datatype's Java class with the given value.
JavaCodeFragment	newRangeInstance(JavaCodeFragment lowerBoundExp, JavaCodeFragment upperBoundExp, JavaCodeFragment stepExp, JavaCodeFragment containsNullExp, boolean useTypesafeCollections)	Returns a JavaCodeFragment containing the source code to create a new instance of a type specific range.
protected JavaCodeFragment	valueOfExpression(String expression)	This method is supposed to be overridden by subclasses.

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

createCastExpression, getDatatype, getToStringExpression, newEnumValueSetInstance, newEnumValueSetInstance, newInstanceFromExpression, newInstanceFromExpression, newSafeCopy, nullExpression, 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

Constructor Details

BigDecimalHelper

public BigDecimalHelper()

BigDecimalHelper

public BigDecimalHelper(BigDecimalDatatype datatype)

Method Details

getJavaClassName

public String getJavaClassName()

Description copied from interface: DatatypeHelper

Returns the qualified Java class name the datatype represents.

newInstance

public JavaCodeFragment newInstance(String value)

Description copied from interface: DatatypeHelper

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.

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

getRangeJavaClassName

public String getRangeJavaClassName(boolean useTypesafeCollections)

Description copied from interface: DatatypeHelper

Returns the qualified Java class name of the range class of the datatype this is a helper for.

Specified by:

getRangeJavaClassName in interface DatatypeHelper

Overrides:

getRangeJavaClassName in class AbstractDatatypeHelper

newRangeInstance

public JavaCodeFragment newRangeInstance(JavaCodeFragment lowerBoundExp,
 JavaCodeFragment upperBoundExp,
 JavaCodeFragment stepExp,
 JavaCodeFragment containsNullExp,
 boolean useTypesafeCollections)

Description copied from interface: DatatypeHelper

Returns a JavaCodeFragment containing the source code to create a new instance of a type specific range.

Specified by:

newRangeInstance in interface DatatypeHelper

Overrides:

newRangeInstance in class AbstractDatatypeHelper

Parameters:

lowerBoundExp - the lower bound expression of the range. Can be null to indicate that the lower bound is open

upperBoundExp - the upper bound expression of the range. Can be null to indicate that the upper bound is open.

stepExp - the minimum increment expression for values within the lower and upper bounds. Can be null to indicate that this is a continuous range.

containsNullExp - the containsNull expression

Returns:

the code fragment to create a new range instance. Can be null to indicate that a range is not supported.