org.geotools.catalog.defaults
Interface AST

public interface AST

Use the visitor pattern to traverse the AST

Since:

0.6

Author:

David Zwiers, Refractions Research

Field Summary

static int	AND
static int	LITERAL
static int	NOT
static int	OR

Method Summary

boolean	accept(java.lang.String datum)
AST	getLeft() may be null
AST	getRight() may be null
int	type()

Field Detail

AND

public static final int AND

See Also:

Constant Field Values

OR

public static final int OR

See Also:

Constant Field Values

NOT

public static final int NOT

See Also:

Constant Field Values

LITERAL

public static final int LITERAL

See Also:

Constant Field Values

Method Detail

accept

public boolean accept(java.lang.String datum)

type

public int type()

getLeft

public AST getLeft()

may be null

Returns:

DOCUMENT ME!

getRight

public AST getRight()

may be null

Returns:

DOCUMENT ME!