Examples of org.opengis.filter.expression.Expression.accept()

Class org.opengis.filter.expression.Expression

Examples of org.opengis.filter.expression.Expression.accept()

org.opengis.filter.expression.Expression.accept()
Accepts a visitor. Subclasses must implement with a method whose content is the following:
```
return visitor. {@linkplain ExpressionVisitor#visit visit}(this, extraData);
```

            output.append(":\"IsWithin(");
            e2.accept(visitor, extraData);
            output.append(")\"");
        } else if (filter instanceof Intersects) {
            output.append(":\"Intersects(");
            e2.accept(visitor, extraData);
            output.append(")\"");
        } else if (filter instanceof Contains) {
            output.append(":\"Contains(");
            e2.accept(visitor, extraData);
            output.append(")\"");

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            output.append(":\"Intersects(");
            e2.accept(visitor, extraData);
            output.append(")\"");
        } else if (filter instanceof Contains) {
            output.append(":\"Contains(");
            e2.accept(visitor, extraData);
            output.append(")\"");
        } else {
            throw new RuntimeException("Unsupported filter type " + filter.getClass());
        }

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        out.write(">=");
        lowerbounds.accept(this, context);
        out.write(") AND (");
        expr.accept(this, extraData);
        out.write("<=");
        upperbounds.accept(this, context);
        out.write("))");


        return extraData;
    }

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        }


        String type = (String) extraData;
        left.accept(this, leftContext);
        out.write(" " + type + " ");
        right.accept(this, rightContext);
    }


    public Object visit(PropertyName expression, Object extraData) throws RuntimeException {
        AttributeDescriptor attribute = null;
        try {

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                return null;
            }


            // Same deal again...
            upperBound.accept(this, null);


            if (i < postStack.size()) {
                // post process it
                postStack.pop(); // upperBound.accept()'s bum filter
                preStack.pop(); // expr.accept()'s success

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        if (leftGeometry == null || rightGeometry == null) {
            postStack.push(filter);
            return;
        }
        leftGeometry.accept(this, null);


        if (i < postStack.size()) {
            postStack.pop();
            postStack.push(filter);

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            postStack.push(expression);


            return;
        }


        rightValue.accept(this, null);


        if (i < postStack.size()) {
            preStack.pop(); // left
            postStack.pop();
            postStack.push(expression);

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    private Object buildIN(Or filter, Object extraData) {
        StringBuilder output = FilterToTextUtil.asStringBuilder(extraData);
        List<Filter> children = filter.getChildren();
        PropertyIsEqualTo first = (PropertyIsEqualTo) filter.getChildren().get(0);
        Expression left = first.getExpression1();
        left.accept(expressionVisitor,  output );
        output.append(" IN (");
        for (Iterator<Filter> i = children.iterator(); i.hasNext();) {
            PropertyIsEqualTo child = (PropertyIsEqualTo) i.next();
            Expression right = child.getExpression2();
            right.accept(expressionVisitor,  output );

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        left.accept(expressionVisitor,  output );
        output.append(" IN (");
        for (Iterator<Filter> i = children.iterator(); i.hasNext();) {
            PropertyIsEqualTo child = (PropertyIsEqualTo) i.next();
            Expression right = child.getExpression2();
            right.accept(expressionVisitor,  output );
            if (i.hasNext()) {
                output.append(",");
            }
        }
        output.append(")");

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        Expression arg2 = parameters.get(1);
        Literal arg3 = (Literal) parameters.get(2);
        
        arg1.accept(expressionVisitor, output );
        output.append(",");
        arg2.accept(expressionVisitor, output );
        output.append(",");
        output.append( arg3.getValue() );
        output.append( ")" );
        return output;
    }

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