Directory

jOOQ for Vaadin

Integrates Vaadin with jOOQ to run type safe SQL queries.

What is jOOQ?

jOOQ generates Java code from your database and lets you build type-safe SQL queries through its fluent API.

RecordGrid

The RecordGrid uses the table fields generated by jOOQ to create Vaadin Grid. It contains a Builder that can be used to create the Grid.

Example

RecordGrid<VEmployeeRecord> grid = 
        new RecordGrid.Builder<>(V_EMPLOYEE, dslContext)
            .withColumns(V_EMPLOYEE.EMPLOYEE_ID, V_EMPLOYEE.EMPLOYEE_NAME, V_EMPLOYEE.DEPARTMENT_NAME)
            .withSort(Map.of(V_EMPLOYEE.EMPLOYEE_NAME, true))
            .build();

For a fully integrated example, look at the showcase project.

VaadinJooqUtil

The VaadinJooqUtil class provides a convenient method to convert sort orders from a Vaadin DataProvider to OrderFields that can be used in a orderBy clause with jOOQ.

Example

dataProvider = new CallbackDataProvider<VEmployeeRecord, Condition>(
    query -> dsl
        .selectFrom(V_EMPLOYEE)
        .where(query.getFilter().orElse(DSL.noCondition()))
        .orderBy(orderFields(V_EMPLOYEE, query)) // usage of VaadinJooUtil
        .offset(query.getOffset())
        .limit(query.getLimit())
        .fetchStream(),
    
    query -> dsl
        .selectCount()
        .from(V_EMPLOYEE)
        .where(query.getFilter().orElse(DSL.noCondition()))
        .fetchOneInto(Integer.class),
        
    VEmployeeRecord::getEmployeeId)
        
    .withConfigurableFilter();

Sample code

RecordGrid<VEmployeeRecord> grid = 
        new RecordGrid.Builder<>(V_EMPLOYEE, dslContext)
            .withColumns(V_EMPLOYEE.EMPLOYEE_ID, V_EMPLOYEE.EMPLOYEE_NAME, V_EMPLOYEE.DEPARTMENT_NAME)
            .withSort(Map.of(V_EMPLOYEE.EMPLOYEE_NAME, true))
            .build();

dataProvider = new CallbackDataProvider<VEmployeeRecord, Condition>(
    query -> dsl
        .selectFrom(V_EMPLOYEE)
        .where(query.getFilter().orElse(DSL.noCondition()))
        .orderBy(orderFields(V_EMPLOYEE, query)) // usage of VaadinJooUtil
        .offset(query.getOffset())
        .limit(query.getLimit())
        .fetchStream(),
    
    query -> dsl
        .selectCount()
        .from(V_EMPLOYEE)
        .where(query.getFilter().orElse(DSL.noCondition()))
        .fetchOneInto(Integer.class),
        
    VEmployeeRecord::getEmployeeId)
        
    .withConfigurableFilter();

Links

• View on GitHub

Compatibility