Package noaa.coastwatch.util.expression

Class ExpressionParserFactory

java.lang.Object

noaa.coastwatch.util.expression.ExpressionParserFactory

public class ExpressionParserFactory
extends Object

The ExpressionParserFactory class creates standard instances of a ExpressionParser that follow either the legacy expression syntax or Java expression syntax. See the cwmath documentation for details on the legacy versus Java expression language features.

Since:

3.2.1

Author:

Peter Hollemans

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ExpressionParserFactory.ParserStyle	The various styles of parsers.

Method Summary

Modifier and Type	Method	Description
ExpressionParser	create()	Creates a new expression parser in the default style.
ExpressionParser	create(ExpressionParserFactory.ParserStyle style)	Creates a new expresion parser.
static ExpressionParserFactory	getFactoryInstance()	Gets the singleton instance of this class.
static org.nfunk.jep.JEP	getInstance()	Deprecated.
void	setDefaultStyle(ExpressionParserFactory.ParserStyle style)	Sets the default style of expression parser to create.

Methods inherited from class java.lang.Object

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

Method Details

getFactoryInstance

public static ExpressionParserFactory getFactoryInstance()

Gets the singleton instance of this class.

getInstance

@Deprecated
public static org.nfunk.jep.JEP getInstance()

Deprecated.

setDefaultStyle

public void setDefaultStyle(ExpressionParserFactory.ParserStyle style)

Sets the default style of expression parser to create.

Parameters:

style - the style of parser to create.

create

public ExpressionParser create()

Creates a new expression parser in the default style.

create

public ExpressionParser create(ExpressionParserFactory.ParserStyle style)

Creates a new expresion parser.

Parameters:

style - the style of parser to create.

Returns:

the parser configured with the specified style, or null if no appropriate parser could be created.