Examples of com.vaadin.data.util.filter.SimpleStringFilter

com.vaadin.data.util.filter.SimpleStringFilter
Simple string filter for matching items that start with or contain a specified string. The matching can be case-sensitive or case-insensitive. This filter also directly supports in-memory filtering. When performing in-memory filtering, values of other types are converted using toString(), but other (lazy container) implementations do not need to perform such conversions and might not support values of different types. Note that this filter is modeled after the pre-6.6 filtering mechanisms, and might not be very efficient e.g. for database filtering. TODO this might still change @since 6.6

  }


  @Test
  public final void testAddFilter()
  {
    final Filter filter = new SimpleStringFilter("title", "abc", true, false);
    container.addContainerFilter(filter);
    
    Set<ContainerFilter> filters = container.getContainerFilters();
    assertTrue(filters.size() == 1); // lame

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                // Remove old filter
                if (filter != null) {
                    f.removeContainerFilter(filter);
                }
                // Set new filter for the "Name" column
                filter = new SimpleStringFilter(colType, event.getText(), true /* ignoreCase */, false /* onlyMatchPrefix */);


                f.addContainerFilter(filter);
            }
        });

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    public boolean translatesFilter(Filter filter) {
        return filter instanceof SimpleStringFilter;
    }


    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        SimpleStringFilter ssf = (SimpleStringFilter) filter;
        // Create a Like filter based on the SimpleStringFilter and execute the
        // LikeTranslator
        String likeStr = ssf.isOnlyMatchPrefix() ? ssf.getFilterString() + "%"
                : "%" + ssf.getFilterString() + "%";
        Like like = new Like(ssf.getPropertyId().toString(), likeStr);
        like.setCaseSensitive(!ssf.isIgnoreCase());
        return new LikeTranslator().getWhereStringForFilter(like, sh);
    }

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    }


    public void addContainerFilter(Object propertyId, String filterString,
            boolean ignoreCase, boolean onlyMatchPrefix) {
        try {
            addFilter(new SimpleStringFilter(propertyId, filterString,
                    ignoreCase, onlyMatchPrefix));
        } catch (UnsupportedFilterException e) {
            // the filter instance created here is always valid for in-memory
            // containers
        }

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     * java.lang.String, boolean, boolean)
     */
    public void addContainerFilter(Object propertyId, String filterString,
            boolean ignoreCase, boolean onlyMatchPrefix) {
        try {
            addFilter(new SimpleStringFilter(propertyId, filterString,
                    ignoreCase, onlyMatchPrefix));
        } catch (UnsupportedFilterException e) {
            // the filter instance created here is always valid for in-memory
            // containers
        }

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        if (null != filterString && !"".equals(filterString)) {
            switch (filteringMode) {
            case FILTERINGMODE_OFF:
                break;
            case FILTERINGMODE_STARTSWITH:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, true);
                break;
            case FILTERINGMODE_CONTAINS:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, false);
                break;
            }
        }
        return filter;

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        if (null != filterString && !"".equals(filterString)) {
            switch (filteringMode) {
            case FILTERINGMODE_OFF:
                break;
            case FILTERINGMODE_STARTSWITH:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, true);
                break;
            case FILTERINGMODE_CONTAINS:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, false);
                break;
            }
        }
        return filter;

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    @Override
    public void addContainerFilter(Object propertyId, String filterString,
            boolean ignoreCase, boolean onlyMatchPrefix) {
        try {
            addFilter(new SimpleStringFilter(propertyId, filterString,
                    ignoreCase, onlyMatchPrefix));
        } catch (UnsupportedFilterException e) {
            // the filter instance created here is always valid for in-memory
            // containers
        }

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        return filter instanceof SimpleStringFilter;
    }


    @Override
    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        SimpleStringFilter ssf = (SimpleStringFilter) filter;
        // Create a Like filter based on the SimpleStringFilter and execute the
        // LikeTranslator
        String likeStr = ssf.isOnlyMatchPrefix() ? ssf.getFilterString() + "%"
                : "%" + ssf.getFilterString() + "%";
        Like like = new Like(ssf.getPropertyId().toString(), likeStr);
        like.setCaseSensitive(!ssf.isIgnoreCase());
        return new LikeTranslator().getWhereStringForFilter(like, sh);
    }

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        if (null != filterString && !"".equals(filterString)) {
            switch (filteringMode) {
            case OFF:
                break;
            case STARTSWITH:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, true);
                break;
            case CONTAINS:
                filter = new SimpleStringFilter(getItemCaptionPropertyId(),
                        filterString, true, false);
                break;
            }
        }
        return filter;

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