Spring Data MongoDB - Spring Web Services - Parent - SpringSource

please define productname in your docbook file!Note that we derive the name of the input-collection from the ZipInfo-class passed as first parameterto the newAggregation-Method.This example demonstrates the use of simple arithmetic operations in the projection operation.class Product {String id;String name;double netPrice;int spaceUnits;}import static org.springframework.data.mongodb.core.aggregation.Aggregation.*;TypedAggregation agg = newAggregation(Product.class,project("name", "netPrice").and("netPrice").plus(1).as("netPricePlus1").and("netPrice").minus(1).as("netPriceMinus1").and("netPrice").multiply(1.19).as("grossPrice").and("netPrice").divide(2).as("netPriceDiv2").and("spaceUnits").mod(2).as("spaceUnitsMod2"));AggregationResults result = mongoTemplate.aggregate(agg, DBObject.class);List resultList = result.getMappedResults();Example 5.20 Aggregation Framework Example 4Note that we derive the name of the input-collection from the Product-class passed as first parameterto the newAggregation-Method.This example demonstrates the use of simple arithmetic operations derived from SpEL Expressions inthe projection operation.class Product {String id;String name;double netPrice;int spaceUnits;}import static org.springframework.data.mongodb.core.aggregation.Aggregation.*;TypedAggregation agg = newAggregation(Product.class,project("name", "netPrice").andExpression("netPrice + 1").as("netPricePlus1").andExpression("netPrice - 1").as("netPriceMinus1").andExpression("netPrice / 2").as("netPriceDiv2").andExpression("netPrice * 1.19").as("grossPrice").andExpression("spaceUnits % 2").as("spaceUnitsMod2").andExpression("(netPrice * 0.8 + 1.2) *1.19").as("grossPriceIncludingDiscountAndCharge"));AggregationResults result = mongoTemplate.aggregate(agg, DBObject.class);List resultList = result.getMappedResults();Example 5.21 Aggregation Framework Example 51.4.0.BUILD-SNAPSHOTSpring Data MongoDB -Reference Documentation 60