Package io.deephaven.api.expression

Class ExpressionParser<TYPE>

java.lang.Object

io.deephaven.api.expression.ExpressionParser<TYPE>

Type Parameters:

TYPE - The expected type of the parsed expression

public class ExpressionParser<TYPE>
extends Object

A parser that will try a set of ExpressionFactorys and attempt to parse the expression until one of them succeeds.

Constructor Summary

Constructors

Constructor	Description
ExpressionParser()

Method Summary

Modifier and Type	Method	Description
TYPE	parse(String expression, Object... args)	Attempt to process the expression using the configured factories
void	registerFactory(ExpressionFactory<TYPE> expressionFactory)	Add an expression factory to the list of possible parsers for an expression.

Methods inherited from class java.lang.Object

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

Constructor Details

ExpressionParser

public ExpressionParser()

Method Details

parse

public TYPE parse(String expression,
 Object... args)

Attempt to process the expression using the configured factories

Parameters:

expression - the expression to parse

Returns:

The result of the parsing

Throws:

ExpressionException - if there is a problem parsing the expression, or no parsers accepted the expression.

registerFactory

public void registerFactory(ExpressionFactory<TYPE> expressionFactory)

Add an expression factory to the list of possible parsers for an expression.

Parameters:

expressionFactory - the factory