OpenTestSystem.Otx.Core.Terms Namespace Reference

Lists all Terms defined in the Core. More...

Classes
class	AbsoluteValue
	Gets the value of the operand without regard to its sign More...
class	Add
	Sum of all operands More...
class	BitwiseAnd
	Bitwise AND Operation More...
class	BitwiseNot
	Bitwise NOT Operation More...
class	BitwiseOr
	Bitwise OR Operation More...
class	BitwiseXor
	Bitwise XOR Operation More...
class	BooleanLiteral
	Literal of type Boolean More...
class	BooleanTerm
	BooleanTerm returns a Boolean value More...
class	BooleanValue
	Reading Boolean value More...
class	ByteFieldGetSize
	Number of Bytes in a Bytefields More...
class	ByteFieldLiteral
	Literal of type ByteField More...
class	ByteFieldTerm
	ByteFieldTerm returns a ByteField value More...
class	ByteFieldValue
	Reading ByteField value More...
class	CollectionTerm
	CollectionTerm returns collection values More...
class	DecodeInteger
	Decodes an Integer More...
class	Divide
	Division of two operands More...
class	EncodeInteger
	Encodes an Integer More...
class	ExceptionTerm
	ExceptionTerm returns a Exception value More...
class	ExceptionValue
	Reading Exception value More...
class	FloatLiteral
	Literal of type Float More...
class	FloatTerm
	FloatTerm returns a Float value More...
class	FloatValue
	Reading Float value More...
class	GetBit
	Gets bit from a byte field More...
class	GetExceptionOriginatorNode
	Node that triggered the Exception More...
class	GetExceptionQualifier
	Qualifier of Exception More...
class	GetExceptionText
	Text of Exception More...
class	GetStackTrace
	Procedure call stack for an exception More...
class	IntegerLiteral
	Literal of type Integer More...
class	IntegerTerm
	IntegerTerm returns a Integer value More...
class	IntegerValue
	Reading Integer value More...
class	IsEqual
	Test for equality More...
class	IsGreater
	Checks the left value is greater than the right value More...
class	IsGreaterOrEqual
	Checks the left value is greater or equal than the right value More...
class	IsLess
	Checks the left value is less than the right value More...
class	IsLessOrEqual
	Checks the left value is less or equal than the right value More...
class	IsNotEqual
	Tests for inequality More...
class	IsValid
	Allows testing a validity for its truth value with respect to the current context More...
class	ListContainsValue
	Checks if an item is in the list More...
class	ListCopy
	Copy of a list. More...
class	ListCreate
	Create a List. More...
class	ListGetLength
	Number of list items More...
class	ListItems
	Wrapper element for the literal List items More...
class	ListLiteral
	Literal of type List More...
class	ListTerm
	ListTerm returns a List value. More...
class	ListValue
	Reading List value. More...
class	LogicAnd
	Logical AND-operation More...
class	LogicNot
	Logical NOT-operation More...
class	LogicOr
	Logical OR-operation More...
class	LogicXor
	Logical XOR-operation More...
class	MapContainsKey
	Checks a key in a Map More...
class	MapContainsValue
	Checks a value in a Map More...
class	MapCopy
	Copy of all items of a map More...
class	MapCreate
	Create a Map More...
class	MapGetKeyList
	Returns the key list of a map. More...
class	MapGetSize
	Number of elements in a map More...
class	MapGetValueList
	Returns value list in a map. More...
class	MapItem
	Represents key/value pair items in the map literal More...
class	MapItems
	Wrapper element for the literal Map items More...
class	MapLiteral
	Literal of type Map More...
class	MapTerm
	MapTerm returns a Map value More...
class	MapValue
	Reading Map value More...
class	Modulo
	Gets the remainder of a division More...
class	Multiply
	Product of all operands More...
class	Negate
	Gets the value of the operand with inverted sign More...
class	NumericTerm
	NumericTerm returns a Integer or a Float value More...
class	Round
	Gets the rounded integer value of the operand More...
class	RoundToNearest
	Gets the rounded to the nearest integer value of the operand. More...
class	SimpleTerm
	SimpleTerm returns simple values More...
class	StringLiteral
	Literal of type String More...
class	StringTerm
	StringTerm returns a String value More...
class	StringValue
	Reading String value More...
class	SubByteField
	Returns part of ByteField More...
class	Subtract
	Subtraction of two operands More...
class	Term
	Represent syntactic expressions which can be evaluated in order to yield a value. More...
class	ToBoolean
	Convert expression to Boolean More...
class	ToByteField
	Convert expression to ByteField More...
class	ToFloat
	Convert expression to Float More...
class	ToInteger
	Convert expression to Integer More...
class	ToString
	Convert expression to String More...
class	UserExceptionCreate
	Creates an Exception More...
class	UserExceptionLiteral
	UserException Literal More...

Detailed Description

Lists all Terms defined in the Core.

OTX terms represent syntactic expressions which can be evaluated in order to yield a value. The resulting value of a term can be a simple value (e.g. an integer in the OTX Integer case) or a reference to complex data (e.g. a reference to a list in the OTX List case). Terms are required in various places in the data model, when a value needs to be computed which is then e.g. assigned to a variable, used as an input parameter for a procedure call, or used as the condition truth value in a branch, etc.

Every OTX term is categorized according to its return type. The OTX syntax prescribes a term hierarchy; the leaf term categories correspond directly to the OTX data types, e.g. every StringTerm will return a String value. The higher level term categories bundle other term categories – e.g. all terms returning an Integer (IntegerTerm) and terms returning a Float (FloatTerm) are in the category NumericTerm. The higher level categories are used in places where more then one data type is allowed, e.g. in a ForEachLoop, the collection over which the loop iterates may be a List or a Map, so the CollectionTerm is used which bundles both MapTerm and ListTerm. There is also the high-level term SimpleTerm which serves to separate terms returning simple values from terms returning references.

There are also concrete terms derived directly from a higher level category; this is required for terms where the returned data type is determined according to the term argument data types, e.g. the Add term which is a NumericTerm because it returns an Integer value if all summand arguments are Integer, but it returns a Float value if all summand arguments are Float, etc.

Note

OTX terms never have side-effects – this means that the arguments of a term will not be changed by term evaluation.

The abstract OTX Core terms are extensible. This means that OTX extensions may derive new terms from any of the abstract term categories defined in the OTX Core.