Examples of org.geotools.filter.ExpressionDOMParser.expression()

Class org.geotools.filter.ExpressionDOMParser

Examples of org.geotools.filter.ExpressionDOMParser.expression()

org.geotools.filter.ExpressionDOMParser.expression()
parses an expression for a filter. @param root the root node to parse, should be an filter expression. @return the geotools representation of the expression held in the node.

                sti.add(getFirstChildValue(child));
            } else if (childName.equalsIgnoreCase("Rule")) {
                rules.add(parseRule(child));
            } else if (childName.equalsIgnoreCase("Transformation")) {
                ExpressionDOMParser parser = new ExpressionDOMParser(CommonFactoryFinder.getFilterFactory2(null));
                Expression tx = parser.expression(getFirstNonTextChild(child));
                ft.setTransformation(tx);
            }
        }


        if (sti.size() > 0) {

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     * SLD graphic parameters. A "mixed" element-content model is used with textual substitution for
     * values.
     */
    Expression parseParameterValueExpression(Node root, boolean mixedText) {
        ExpressionDOMParser parser = new ExpressionDOMParser((FilterFactory2) ff);
        Expression expr = parser.expression(root); // try the provided node first
        if (expr != null)
            return expr;
        NodeList children = root.getChildNodes();
        // if there is only one CharacterData node - we can make a literal out of it
        if (children.getLength() == 1 && root.getFirstChild() instanceof CharacterData) {

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                    String text = child.getNodeValue();
                    Expression childExpr = ff.literal(text);
                    expressionList.add(childExpr);
                }
            } else {
                Expression childExpr = parser.expression(child);
                if (childExpr != null) {
                    expressionList.add(childExpr);
                }
            }
        }

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      } else if (childName.equalsIgnoreCase("Rule")) {
        rules.add(parseRule(child));
      } else if (childName.equalsIgnoreCase("Transformation")) {
        ExpressionDOMParser parser = new ExpressionDOMParser(
            CommonFactoryFinder.getFilterFactory2(null));
        Expression tx = parser.expression(getFirstNonTextChild(child));
        ft.setTransformation(tx);
      }
    }


    if (sti.size() > 0) {

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   * model is used with textual substitution for values.
   */
  Expression parseParameterValueExpression(Node root, boolean mixedText) {
    ExpressionDOMParser parser = new ExpressionDOMParser(
        (FilterFactory2) ff);
    Expression expr = parser.expression(root); // try the provided node
                          // first
    if (expr != null)
      return expr;
    NodeList children = root.getChildNodes();
    // if there is only one CharacterData node - we can make a literal out

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          String text = child.getNodeValue();
          Expression childExpr = ff.literal(text);
          expressionList.add(childExpr);
        }
      } else {
        Expression childExpr = parser.expression(child);
        if (childExpr != null) {
          expressionList.add(childExpr);
        }
      }
    }

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