Examples with ExprVar org.apache.jena.sparql.expr.ExprVar used on opensource projects

Example 21 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class WhereClauseTest method testAddFilter.

@ContractTest
public void testAddFilter() throws ParseException {
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addFilter("?one<10");
    E_LessThan lt = new E_LessThan(new ExprVar(Var.alloc("one")), new NodeValueInteger(10));
    ElementFilter ef = new ElementFilter(lt);
    WhereValidator visitor = new WhereValidator(ef);
    builder.build().getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 22 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class SolutionModifierTest method testAddOrderByString.

@ContractTest
public void testAddOrderByString() {
    SolutionModifierClause<?> solutionModifier = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = solutionModifier.addOrderBy("foo");
    List<SortCondition> lst = builder.build().getOrderBy();
    Assert.assertEquals(1, lst.size());
    Assert.assertEquals(new SortCondition(new ExprVar(Var.alloc("foo")), Query.ORDER_DEFAULT), lst.get(0));
    builder = solutionModifier.addOrderBy("bar");
    lst = builder.build().getOrderBy();
    Assert.assertEquals(2, lst.size());
    Assert.assertEquals(new SortCondition(new ExprVar(Var.alloc("foo")), Query.ORDER_DEFAULT), lst.get(0));
    Assert.assertEquals(new SortCondition(new ExprVar(Var.alloc("bar")), Query.ORDER_DEFAULT), lst.get(1));
}

Example 23 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class SolutionModifierTest method testAddOrderByExprDescending.

@ContractTest
public void testAddOrderByExprDescending() {
    SolutionModifierClause<?> solutionModifier = getProducer().newInstance();
    Expr e = new E_Random();
    AbstractQueryBuilder<?> builder = solutionModifier.addOrderBy(e, Order.DESCENDING);
    Query query = builder.build();
    assertTrue(query.hasOrderBy());
    List<SortCondition> orderBy = query.getOrderBy();
    assertEquals(1, orderBy.size());
    assertEquals(Query.ORDER_DESCENDING, orderBy.get(0).getDirection());
    assertEquals(e, orderBy.get(0).getExpression());
    builder = solutionModifier.addOrderBy("bar");
    query = builder.build();
    assertTrue(query.hasOrderBy());
    orderBy = query.getOrderBy();
    assertEquals(2, orderBy.size());
    assertEquals(Query.ORDER_DESCENDING, orderBy.get(0).getDirection());
    assertEquals(e, orderBy.get(0).getExpression());
    assertEquals(Query.ORDER_DEFAULT, orderBy.get(1).getDirection());
    assertEquals(new ExprVar("bar"), orderBy.get(1).getExpression());
}

Example 24 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class SolutionModifierTest method testSetVarsHaving_Node_Variable.

@ContractTest
public void testSetVarsHaving_Node_Variable() throws ParseException {
    Node v = NodeFactory.createVariable("v");
    SolutionModifierClause<?> solutionModifier = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = solutionModifier.addHaving(v);
    List<Expr> exprs = builder.build().getHavingExprs();
    Assert.assertEquals(1, exprs.size());
    Assert.assertEquals(new ExprVar(Var.alloc(v)), exprs.get(0));
    builder.setVar(v, Var.alloc("v2"));
    exprs = builder.build().getHavingExprs();
    Assert.assertEquals(1, exprs.size());
    Assert.assertEquals(new ExprVar(Var.alloc("v2")), exprs.get(0));
}

Example 25 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class ExprFactoryTest method boundTest_ExprVar.

public void boundTest_ExprVar() {
    ExprVar ev = new ExprVar("hello");
    Expr e = factory.bound(ev);
    assertTrue(e instanceof E_Bound);
    assertEquals("?hello", e.getVarName());
}