public class AbstractExpressionVisitor extends Object implements ExpressionVisitor
| Constructor and Description |
|---|
AbstractExpressionVisitor() |
| Modifier and Type | Method and Description |
|---|---|
Object |
visit(Add expr,
Object extraData) |
Object |
visit(Divide expr,
Object extraData) |
Object |
visit(Function expr,
Object extraData) |
Object |
visit(Literal expr,
Object extraData) |
Object |
visit(Multiply expr,
Object extraData) |
Object |
visit(NilExpression expr,
Object extraData)
Used to visit a Expression.NIL, also called for
null where an expression is
expected. |
Object |
visit(PropertyName expr,
Object extraData) |
Object |
visit(Subtract expr,
Object extraData) |
public Object visit(NilExpression expr, Object extraData)
ExpressionVisitornull where an expression is
expected.
This is particularly useful when doing data transformations, as an example when using a StyleSymbolizer Expression.NIL can be used to represent the default stroke color.
visit in interface ExpressionVisitorpublic Object visit(Add expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(Divide expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(Function expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(Literal expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(Multiply expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(PropertyName expr, Object extraData)
visit in interface ExpressionVisitorpublic Object visit(Subtract expr, Object extraData)
visit in interface ExpressionVisitorCopyright © 1996–2021 Geotools. All rights reserved.