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MetadataPossible values
outputmode (important)
  • "INPUT"
    • read element wil not be modified
  • "MODIFIED_INPUT" (default)
    • read element will be modified
  • "NEW_ELEMENT"
    • operator creates a new element
persistent
  • true
    • operator will be automatically added to operator framework of Odysseus after each start of Odysseus
  • false (default)
minInputPorts
  • Integer-Value
    • Minimal number of ports that the operator needs
maxInputPorts
  • Integer-Value
    • Maximum number of ports that the operator needs

Please look at the LogicalOperator-Interface of Odysseus for more available metadata (e.g. doc, url, category).

Parameter

You need to define parameters if the operator should be configurable while building a continuous query. A parameter can be optional and consists of a data type and a name. Note that not every data type can be used for a parameter because each data type must have a corresponding parameter class in Odysseus. The following table shows the available data types:

Data typeParameter class
String

StringParameter

FileNameParameter

HttpStringParameter

BooleanBooleanParameter
ByteByteParameter
IntegerIntegerParameter
DoubleDoubleParameter
LongLongParameter
Resource

ResourceParameter

AccessAOSourceParameter

AggregateItem

AggregateItemParameter

BitVector

BitVectorParameter

RenameAttribute

CreateAndRenameSDFAttributeParameter

SDFAttribute

CreateSDFAttributeParameter

ResolvedSDFAttributeParameter

File

ValidatedFileNameParameter

IMetaAttribute

MetaAttributeParameter

IPhysicalOperator

PhysicalOperatorParameter

IPredicate

PredicateParameter

NamedExpression

SDFExpressionParameter

AccessAO

SourceParameter

TimeValueItem

TimeParameter