Examples of org.eclipse.nebula.widgets.nattable.util.ICalculator

Package org.eclipse.nebula.widgets.nattable.util

Examples of org.eclipse.nebula.widgets.nattable.util.ICalculator

org.eclipse.nebula.widgets.nattable.util.ICalculator
Interface that is used by the CalculatedValueCache to calculate values in a background process. In a modern world this would be better implemented as a function/lambda, but as we need to work with Java 6, there are no lambdas yet and so we need to work with anonymous inner classes. @author Dirk Fauth @see CalculatedValueCache

                children = getElementsInGroup(groupByObject);
                final List<T> c = children;
                return this.valueCache.getCalculatedValue(columnPosition,
                        rowPosition, new GroupByValueCacheKey(columnPosition,
                                rowPosition, groupByObject), true,
                        new ICalculator() {
                            @Override
                            public Object executeCalculation() {
                                return summaryProvider.summarize(
                                        columnPosition, c);
                            }

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                            final List<T> children = getElementsInGroup(groupByObject);
                            final int col = j;
                            this.valueCache.getCalculatedValue(j, i,
                                    new GroupByValueCacheKey(j, i,
                                            groupByObject), false,
                                    new ICalculator() {
                                        @Override
                                        public Object executeCalculation() {
                                            return summaryProvider.summarize(
                                                    col, children);
                                        }

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        @Override
        public Object getDataValue(final int colIndex, final int rowIndex) {
            if (colIndex == 3) {
                Object result = this.valueCache.getCalculatedValue(colIndex,
                        rowIndex, true, new ICalculator() {
                            @Override
                            public Object executeCalculation() {
                                // calculate the sum
                                int colTwo = (Integer) getDataValue(1, rowIndex);
                                int colThree = (Integer) getDataValue(2,
                                        rowIndex);
                                // add some delay
                                try {
                                    Thread.sleep(500);
                                } catch (InterruptedException e) {}
                                return colTwo + colThree;
                            }
                        });


                return result == null ? 0 : result;
            } else if (colIndex == 4) {
                Object result = this.valueCache.getCalculatedValue(colIndex,
                        rowIndex, true, new ICalculator() {
                            @Override
                            public Object executeCalculation() {
                                // calculate the percentage
                                int colOne = (Integer) getDataValue(0, rowIndex);
                                int colTwo = (Integer) getDataValue(1, rowIndex);

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        // rows are added or
        // removed because the value cache takes into account column and row
        // position for caching.
        return this.valueCache.getCalculatedValue(columnPosition,
                getSummaryRowPosition(), calculateInBackground,
                new ICalculator() {


                    @Override
                    public Object executeCalculation() {
                        LabelStack labelStack = getConfigLabelsByPositionWithoutTransformation(
                                columnPosition, getSummaryRowPosition());

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org.eclipse.nebula.widgets.nattable.examples._800_Integration._803_CachedCalculatingGridExample$CachedValueCalculatingDataProvider

org.eclipse.nebula.widgets.nattable.extension.glazedlists.groupBy.GroupByDataLayer

org.eclipse.nebula.widgets.nattable.summaryrow.SummaryRowLayer

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