Package org.faktorips.fl.operations

Class CompareToComparableDatatype

java.lang.Object

org.faktorips.fl.operations.AbstractBinaryOperation<org.faktorips.codegen.JavaCodeFragment>

org.faktorips.fl.operations.AbstractBinaryJavaOperation

org.faktorips.fl.operations.CompareToComparableDatatype

All Implemented Interfaces:

BinaryOperation<org.faktorips.codegen.JavaCodeFragment>

public class CompareToComparableDatatype
extends AbstractBinaryJavaOperation

This is a generic operation for comparable datatypes to. It allows to use greater than, greater or equal, less than and less or equal, according to the operator. Important for this generic operation is, that the given operator is the same as it is used in java code! It is simply transformed to be used with the Comparable.compareTo(Object) method comparing zero.

Example:
For the operator '<' we simply generate (lhs.compareTo(rhs) < 0)'

Field Summary

Fields inherited from interface org.faktorips.fl.BinaryOperation

DIVIDE, EQUAL, GREATER_THAN, GREATER_THAN_OR_EQUAL, LESSER_THAN, LESSER_THAN_OR_EQUAL, MINUS, MULTIPLY, NOT_EQUAL, PLUS

Constructor Summary

Constructors

Constructor	Description
CompareToComparableDatatype(String operator, org.faktorips.datatype.Datatype type)

Method Summary

Modifier and Type	Method	Description
CompilationResultImpl	generate(CompilationResultImpl lhs, CompilationResultImpl rhs)	Overridden method.

Methods inherited from class org.faktorips.fl.operations.AbstractBinaryJavaOperation

generate

Methods inherited from class org.faktorips.fl.operations.AbstractBinaryOperation

getCompiler, getLhsDatatype, getOperator, getRhsDatatype, setCompiler

Methods inherited from class java.lang.Object

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

Constructor Details

CompareToComparableDatatype

public CompareToComparableDatatype(String operator,
 org.faktorips.datatype.Datatype type)

Method Details

generate

public CompilationResultImpl generate(CompilationResultImpl lhs,
 CompilationResultImpl rhs)

Overridden method.

Specified by:

generate in class AbstractBinaryJavaOperation

Parameters:

lhs - the left hand side operand

rhs - the right hand side operand

Returns:

the given operands combined with this operation's operator

See Also:

• AbstractBinaryJavaOperation.generate(org.faktorips.fl.CompilationResultImpl, org.faktorips.fl.CompilationResultImpl)