| Package | Description | 
|---|---|
| com.pervasive.datarush.aggregations | |
| com.pervasive.datarush.analytics.functions | 
 Provides various statistics functions. 
 | 
| com.pervasive.datarush.analytics.stats | 
 Provides various statistics, Data Summarizer, and Data Quality Analyzer. 
 | 
| com.pervasive.datarush.functions | 
 Provides classes and interfaces related to defining functions on records. 
 | 
| com.pervasive.datarush.matching.functions | 
 Provides functions related to approximate matching. 
 | 
| com.pervasive.datarush.operators.assertion | 
 Provides operators for making assertions on flows and files. 
 | 
| com.pervasive.datarush.operators.group | 
 Provides data aggregation components. 
 | 
| com.pervasive.datarush.operators.join | 
 Provides operators for joining together two data sets into a single one. 
 | 
| com.pervasive.datarush.operators.record | 
 Provides operators for manipulating record structure. 
 | 
| com.pervasive.datarush.operators.select | 
 Provides operators for selecting a subset of the data set. 
 | 
| com.pervasive.datarush.operators.source | 
 Provides operators for generating data tokens in various ways. 
 | 
| com.pervasive.datarush.ports.physical | 
 Provides classes and interfaces for accessing and producing the data flowing
 between operators in a dataflow graph. 
 | 
| Class and Description | 
|---|
| FunctionDescription
 A description of a function, including its name, description, and argument names. 
 | 
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| FunctionProvider
 A provider of registered classes for the  
FunctionRegistry. | 
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| SimpleFunctionProvider
 Convenient base class for implementations of  
FunctionProvider. | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ArgumentConverter
 An ArgumentConverter is used by the  
DefaultFunctionInvoker to convert
 ScalarValuedFunction arguments to the correct type. | 
| ConstantArgumentConverter
 An abstract argument converter for converting String constants to the
 correct object type. 
Child classes should implement the convert(String) object to produce an object.  | 
| DateTime.DateTimeValue
 Definitions of date and time values that can be extracted from date and timestamp types. 
 | 
| DateTime.Granularity
 The desired granularity of the output. 
 | 
| EvaluationContext
 An object describing the context in which a subexpression of a
 larger expression is being evaluated. 
 | 
| EvaluatorFactory
 A factory used to construct evaluators for  
ScalarValuedFunctions. | 
| FunctionContext
 Information about the context in which a function is
 evaluated. 
 | 
| FunctionDescription
 A description of a function, including its name, description, and argument names. 
 | 
| FunctionEvaluator
 An executor of a function. 
 | 
| FunctionInvoker
 A FunctionInvoker is used by the FunctionRegistry to invoke a function method and by
 the AggregationInvoker to invoke an aggregation method. 
The implementing class essentially translates an array of ScalarValuedFunction arguments into the proper format for a given function method. A function method can specify its invoker using the Invoker annotation.  | 
| FunctionProvider
 A provider of registered classes for the  
FunctionRegistry. | 
| FunctionRegistry
 Stores a list of functions registered by the FunctionTypeResoultionProvider, and
 provides a method for calling those functions. 
 | 
| FunctionTyper
 Determines the upper bound and result type of a
  
ScalarValuedFunction. | 
| MappedEvaluatorFactory
 A base class for factories which choose an evaluator based on a
 token type. 
 | 
| MappedEvaluatorFactory.Mapping
 Defines a mapping between data type and an evaluator class. 
 | 
| ScalarFunctionDescriptor.SubexpressionBound
 Specifies a bound on subexpressions used as arguments to a function. 
 | 
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| SimpleFunctionProvider
 Convenient base class for implementations of  
FunctionProvider. | 
| Strings.NullConcatenation
 Specifies behavior of null values for string concatenation. 
 | 
| Class and Description | 
|---|
| FunctionProvider
 A provider of registered classes for the  
FunctionRegistry. | 
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| SimpleFunctionProvider
 Convenient base class for implementations of  
FunctionProvider. | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
| Class and Description | 
|---|
| ScalarValuedFunction
 The description of a function taking record data and producing a scalar result. 
 | 
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