Examples with JDOQLCompiler org.datanucleus.query.compiler.JDOQLCompiler used on opensource projects

Example 26 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLCompilerTest method testResultGroupingForMethods.

/**
 * Test use of result clauses, and presence in grouping.
 */
public void testResultGroupingForMethods() {
    JavaQueryCompiler compiler = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Person.class, null, null, null, null, "birthDate.getYear() AS YEAR", "birthDate.getYear()", null, null, null, null);
        compiler.compile(null, null);
    } catch (NucleusUserException ne) {
        NucleusLogger.GENERAL.error(">> Exception in compile()", ne);
        fail("Compile of query with grouping and result clause using method and alias failed : " + ne.getMessage());
    }
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Person.class, null, null, null, null, "birthDate.getYear()/10", "birthDate.getYear()/10", null, null, null, null);
        compiler.compile(null, null);
    } catch (NucleusUserException ne) {
        NucleusLogger.GENERAL.error(">> Exception in compile()", ne);
        fail("Compile of query with grouping and result clause using method and alias failed : " + ne.getMessage());
    }
}

Example 27 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterWithStringLiteralStartsWith.

/**
 * Tests for "StringLiteral.startsWith(var)" in filter.
 */
public void testFilterWithStringLiteralStartsWith() {
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "\"SomeString\".startsWith(name)", null, null, null, null, null, null, null, null);
        compilation = compiler.compile(new HashMap(), null);
    } catch (NucleusException ne) {
        NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
        fail("compilation of filter with valid field threw exception : " + ne.getMessage());
    }
    Expression expr = compilation.getExprFilter();
    assertTrue("Filter should be InvokeExpression but is " + expr, expr instanceof InvokeExpression);
    InvokeExpression invExpr = (InvokeExpression) expr;
    assertTrue("InvokeExpression should have been invoked on Literal but wasnt", invExpr.getLeft() instanceof Literal);
    assertEquals("Value of literal is wrong", "SomeString", ((Literal) invExpr.getLeft()).getLiteral());
    assertEquals("Name of invoked method was wrong", "startsWith", invExpr.getOperation());
    assertEquals("Number of parameters is wrong", 1, invExpr.getArguments().size());
    Object param1 = invExpr.getArguments().get(0);
    assertTrue("Parameter1 to startsWith() is of wrong type : " + param1, param1 instanceof PrimaryExpression);
    PrimaryExpression param1Expr = (PrimaryExpression) param1;
    assertEquals("Parameter1 expression has incorrect number of tuples", 1, param1Expr.getTuples().size());
    assertEquals("Parameter1 expression 'id' is incorrect", "name", param1Expr.getId());
}

Example 28 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLCompilerTest method testQueryCompilationSerializable.

/**
 * Test for serialisability of QueryCompilation.
 */
public void testQueryCompilationSerializable() {
    // Test use of implicit variable in filter
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "name == param1", null, null, null, null, null, "java.lang.String param1", null, null);
        compilation = compiler.compile(null, null);
    } catch (NucleusUserException ne) {
        // TODO Debatable if this should throw a JDOUserException since the "notaField" is not bound, nor typed
        NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
        fail("compilation of filter with valid field threw exception : " + ne.getMessage());
    }
    try {
        try {
            // Serialise the Expression
            FileOutputStream fileStream = new FileOutputStream("compilation.ser");
            ObjectOutputStream os = new ObjectOutputStream(fileStream);
            os.writeObject(compilation);
            os.close();
        } catch (Exception e) {
            NucleusLogger.GENERAL.error(">> Exception in serialise", e);
            fail("Failed to serialise " + StringUtils.toJVMIDString(compilation));
        }
        try {
            // Deserialise the Expression
            FileInputStream fileInputStream = new FileInputStream("compilation.ser");
            ObjectInputStream oInputStream = new ObjectInputStream(fileInputStream);
            Object obj = oInputStream.readObject();
            if (obj instanceof QueryCompilation) {
                QueryCompilation compilation1 = (QueryCompilation) obj;
                Expression expr1 = compilation1.getExprFilter();
                assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr1 instanceof DyadicExpression);
                DyadicExpression dyExpr1 = (DyadicExpression) expr1;
                assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr1.getLeft() instanceof PrimaryExpression);
                assertTrue("Compiled right expression should be ParameterExpression but isnt", dyExpr1.getRight() instanceof ParameterExpression);
                PrimaryExpression left1 = (PrimaryExpression) dyExpr1.getLeft();
                assertEquals("Primary expression name is wrong", left1.getId(), "name");
                ParameterExpression right1 = (ParameterExpression) dyExpr1.getRight();
                assertEquals("ParameterExpression has wrong value", "param1", right1.getId());
            } else {
                fail("Deserialised object is " + obj.getClass().getName() + " not QueryCompilation");
            }
            oInputStream.close();
        } catch (Exception e) {
            NucleusLogger.GENERAL.error(">> Exception in deserialise", e);
            fail("Failed to deserialise " + StringUtils.toJVMIDString(compilation));
        }
    } finally {
        // Delete the file
        File file = new File("compilation.ser");
        if (file.exists()) {
            file.delete();
        }
    }
}

Example 29 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterImplicitParameter.

/**
 * Test for use of an implicit parameter in the filter.
 */
public void testFilterImplicitParameter() {
    // Test use of implicit variable in filter
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "name == :param1", null, null, null, null, null, null, null, null);
        compilation = compiler.compile(null, null);
    } catch (NucleusUserException ne) {
        // TODO Debatable if this should throw a JDOUserException since the "notaField" is not bound, nor typed
        NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
        fail("compilation of filter with valid field threw exception : " + ne.getMessage());
    }
    Expression expr = compilation.getExprFilter();
    assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr instanceof DyadicExpression);
    DyadicExpression dyExpr = (DyadicExpression) expr;
    assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr.getLeft() instanceof PrimaryExpression);
    assertTrue("Compiled right expression should be ParameterExpression but isnt", dyExpr.getRight() instanceof ParameterExpression);
    PrimaryExpression left = (PrimaryExpression) dyExpr.getLeft();
    assertEquals("Primary expression name is wrong", left.getId(), "name");
    ParameterExpression right = (ParameterExpression) dyExpr.getRight();
    assertEquals("ParameterExpression has wrong value", "param1", right.getId());
}

Example 30 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLEvaluatorTest method testFilterMapContainsKeyNonPC.

/**
 * Test of filter with mapField.containsKey(nonPC).
 */
public void testFilterMapContainsKeyNonPC() {
    PersistenceManager pm = pmf.getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
        tx.begin();
        // Create some instances to query over
        List<MapHolder> instances = new ArrayList<>();
        MapHolder holder1 = new MapHolder("First");
        MapHolder holder2 = new MapHolder("Second");
        MapHolder holder3 = new MapHolder("Third");
        holder1.getJoinMapNonNon().put("First", "First Element");
        holder2.getJoinMapNonNon().put("First", "First Element");
        holder2.getJoinMapNonNon().put("Second", "Second Element");
        holder3.getJoinMapNonNon().put("Second", "Second Element");
        holder3.getJoinMapNonNon().put("Third", "Third Element");
        instances.add(holder1);
        instances.add(holder2);
        instances.add(holder3);
        // Compile the query
        JDOQuery q = (JDOQuery) pm.newQuery(MapHolder.class, "joinMapNonNon.containsKey('Third')");
        Query query = q.getInternalQuery();
        ClassLoaderResolver clr = query.getExecutionContext().getClassLoaderResolver();
        JavaQueryCompiler compiler = new JDOQLCompiler(query.getExecutionContext().getNucleusContext(), clr, null, query.getCandidateClass(), null, query.getFilter(), query.getParsedImports(), query.getOrdering(), query.getResult(), query.getGrouping(), query.getHaving(), query.getExplicitParametersDeclaration(), query.getExplicitVariablesDeclaration(), null);
        QueryCompilation compilation = compiler.compile(new HashMap(), null);
        // Execute the query
        JavaQueryInMemoryEvaluator eval = new JDOQLInMemoryEvaluator(query, instances, compilation, null, clr);
        List results = (List) eval.execute(true, true, true, true, true);
        assertEquals("Number of result instances was wrong", 1, results.size());
        MapHolder holder = (MapHolder) results.get(0);
        assertEquals("Result instance has wrong name", "Third", holder.getName());
        tx.commit();
    } catch (Exception e) {
        e.printStackTrace();
        fail("Exception thrown during query execution " + e.getMessage());
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        pm.close();
    }
}