Package io.deephaven.time

Class TimeLiteralReplacedExpression

java.lang.Object

io.deephaven.time.TimeLiteralReplacedExpression

public class TimeLiteralReplacedExpression
extends Object

TimeLiteralReplacedExpression is a query expression with time, period, and datetime literals replaced by instance variables. This contains the converted formula, instance variable declarations, and a map of types of the instance variables.

Method Summary

Modifier and Type	Method	Description
static TimeLiteralReplacedExpression	convertExpression(String expression)	Converts a query expression to a TimeLiteralReplacedExpression, where the time, period, and datetime literals are replaced by instance variables.
String	getConvertedFormula()	Gets the formula after replacing time, period, and datetime literals with variables.
String	getInstanceVariablesString()	An expression that declares new instance variables.
HashMap<String,Class<?>>	getNewVariables()	Gets a map of names and types of new instance variables.

Methods inherited from class java.lang.Object

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

Method Details

getConvertedFormula

public String getConvertedFormula()

Gets the formula after replacing time, period, and datetime literals with variables.

Returns:

formula after replacing time, period, and datetime literals with variables.

getInstanceVariablesString

public String getInstanceVariablesString()

An expression that declares new instance variables.

Returns:

expression that declares new instance variables.

getNewVariables

public HashMap<String,Class<?>> getNewVariables()

Gets a map of names and types of new instance variables.

Returns:

a map of names and types of new instance variables.

convertExpression

public static TimeLiteralReplacedExpression convertExpression(String expression)
                                                       throws Exception

Converts a query expression to a TimeLiteralReplacedExpression, where the time, period, and datetime literals are replaced by instance variables.

Parameters:

expression - query expression to convert.

Returns:

a TimeLiteralReplacedExpression where time, period, and datetime literals have been replaced by instance variables.

Throws:

Exception - If any error occurs or a literal value cannot be parsed.