Examples with PrimaryExpression org.datanucleus.query.expression.PrimaryExpression used on opensource projects

Example 71 with PrimaryExpression

use of org.datanucleus.query.expression.PrimaryExpression in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterExplicitParameter.

/**
 * Test for use of an explicit parameter in the filter.
 */
public void testFilterExplicitParameter() {
    // 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());
    }
    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 72 with PrimaryExpression

use of org.datanucleus.query.expression.PrimaryExpression in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterComparisonWithAndOr.

/**
 * Tests for filter with field-literal comparison AND another comparison, and ORed with
 * another set of expressions.
 */
public void testFilterComparisonWithAndOr() {
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "(statusId == 2 && 100.0 > price) || (price >= 50 && price <= 95)", null, null, null, null, null, null, null, null);
        compilation = compiler.compile(null, 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("Compiled expression should have been DyadicExpression but wasnt", expr instanceof DyadicExpression);
    DyadicExpression dyExpr = (DyadicExpression) expr;
    assertTrue("Compiled left expression should be DyadicExpression but isnt", dyExpr.getLeft() instanceof DyadicExpression);
    assertTrue("Compiled right expression should be DyadicExpression but isnt", dyExpr.getRight() instanceof DyadicExpression);
    DyadicExpression dyExpr1 = (DyadicExpression) dyExpr.getLeft();
    DyadicExpression dyExpr2 = (DyadicExpression) dyExpr.getRight();
    assertEquals("Operator between left and right is incorrect", Expression.OP_OR, dyExpr.getOperator());
    assertTrue("Compiled left(left) expression should be DyadicExpression but isnt", dyExpr1.getLeft() instanceof DyadicExpression);
    assertTrue("Compiled left(right) expression should be DyadicExpression but isnt", dyExpr1.getRight() instanceof DyadicExpression);
    DyadicExpression dyExpr1a = (DyadicExpression) dyExpr1.getLeft();
    DyadicExpression dyExpr1b = (DyadicExpression) dyExpr1.getRight();
    // 1a : statusId == 2
    assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr1a.getLeft() instanceof PrimaryExpression);
    assertTrue("Compiled right expression should be Literal but isnt", dyExpr1a.getRight() instanceof Literal);
    assertEquals("Operator between left (left and right) is incorrect", Expression.OP_EQ, dyExpr1a.getOperator());
    PrimaryExpression leftExpr1a = (PrimaryExpression) dyExpr1a.getLeft();
    assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr1a.getTuples().size());
    assertEquals("Compiled left expression 'id' is incorrect", "statusId", leftExpr1a.getId());
    Literal rightExpr1a = (Literal) dyExpr1a.getRight();
    assertTrue("Compiled right expression literal is of incorrect type", rightExpr1a.getLiteral() instanceof Long);
    assertEquals("Compiled right expression literal has incorrect value", 2, ((Long) rightExpr1a.getLiteral()).longValue());
    // 1b : 100.0 > price
    assertTrue("Compiled right expression should be PrimaryExpression but isnt", dyExpr1b.getRight() instanceof PrimaryExpression);
    assertTrue("Compiled left expression should be Literal but isnt", dyExpr1b.getLeft() instanceof Literal);
    assertEquals("Operator between right (left and right) is incorrect", Expression.OP_GT, dyExpr1b.getOperator());
    PrimaryExpression rightExpr1b = (PrimaryExpression) dyExpr1b.getRight();
    assertEquals("Compiled left expression has incorrect number of tuples", 1, rightExpr1b.getTuples().size());
    assertEquals("Compiled left expression 'id' is incorrect", "price", rightExpr1b.getId());
    Literal leftExpr1b = (Literal) dyExpr1b.getLeft();
    // TODO Why BigDecimal and not Double??
    assertTrue("Compiled right expression literal is of incorrect type", leftExpr1b.getLiteral() instanceof BigDecimal);
    assertEquals("Compiled right expression literal has incorrect value", 100.0, ((BigDecimal) leftExpr1b.getLiteral()).longValue(), 0.1);
    assertTrue("Compiled right(left) expression should be DyadicExpression but isnt", dyExpr2.getLeft() instanceof DyadicExpression);
    assertTrue("Compiled right(right) expression should be DyadicExpression but isnt", dyExpr2.getRight() instanceof DyadicExpression);
    DyadicExpression dyExpr2a = (DyadicExpression) dyExpr2.getLeft();
    DyadicExpression dyExpr2b = (DyadicExpression) dyExpr2.getRight();
    // 2a : price >= 50
    assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr2a.getLeft() instanceof PrimaryExpression);
    assertTrue("Compiled right expression should be Literal but isnt", dyExpr2a.getRight() instanceof Literal);
    assertEquals("Operator between right (left and right) is incorrect", Expression.OP_GTEQ, dyExpr2a.getOperator());
    PrimaryExpression leftExpr2a = (PrimaryExpression) dyExpr2a.getLeft();
    assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr2a.getTuples().size());
    assertEquals("Compiled left expression 'id' is incorrect", "price", leftExpr2a.getId());
    Literal rightExpr2a = (Literal) dyExpr2a.getRight();
    assertTrue("Compiled right expression literal is of incorrect type " + rightExpr2a.getLiteral().getClass().getName(), rightExpr2a.getLiteral() instanceof Long);
    assertEquals("Compiled right expression literal has incorrect value", 50.0, ((Long) rightExpr2a.getLiteral()).longValue(), 0.1);
    // 2b : price >= 50
    assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr2b.getLeft() instanceof PrimaryExpression);
    assertTrue("Compiled right expression should be Literal but isnt", dyExpr2b.getRight() instanceof Literal);
    assertEquals("Operator between right (left and right) is incorrect", Expression.OP_LTEQ, dyExpr2b.getOperator());
    PrimaryExpression leftExpr2b = (PrimaryExpression) dyExpr2b.getLeft();
    assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr2b.getTuples().size());
    assertEquals("Compiled left expression 'id' is incorrect", "price", leftExpr2b.getId());
    Literal rightExpr2b = (Literal) dyExpr2b.getRight();
    assertTrue("Compiled right expression literal is of incorrect type", rightExpr2b.getLiteral() instanceof Long);
    assertEquals("Compiled right expression literal has incorrect value", 95.0, ((Long) rightExpr2b.getLiteral()).longValue(), 0.1);
}

Example 73 with PrimaryExpression

use of org.datanucleus.query.expression.PrimaryExpression in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterWithStringIndexOfLiteral.

/**
 * Tests for "String.indexOf(Literal, int)" in filter.
 */
public void testFilterWithStringIndexOfLiteral() {
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "name.indexOf(\"nd\", 3)", 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("Compiled expression should have been InvokeExpression but wasnt", expr instanceof InvokeExpression);
    InvokeExpression invExpr = (InvokeExpression) expr;
    assertTrue("InvokeExpression should have been invoked on PrimaryExpression but wasnt", invExpr.getLeft() instanceof PrimaryExpression);
    assertEquals("Name of field upon which we invoke the method was wrong", "name", ((PrimaryExpression) invExpr.getLeft()).getId());
    assertEquals("Name of invoked method was wrong", "indexOf", invExpr.getOperation());
    assertEquals("Number of parameters is wrong", 2, invExpr.getArguments().size());
    Object param1 = invExpr.getArguments().get(0);
    assertTrue("Parameter1 to indexOf() is of wrong type", param1 instanceof Literal);
    Literal param1Lit = (Literal) param1;
    assertEquals("Parameter1 to indexOf() has wrong value", "nd", param1Lit.getLiteral());
    Object param2 = invExpr.getArguments().get(1);
    assertTrue("Parameter2 to indexOf() is of wrong type", param2 instanceof Literal);
    Literal param2Lit = (Literal) param2;
    assertEquals("Parameter2 to indexOf() has wrong value", new Long(3), param2Lit.getLiteral());
}

Example 74 with PrimaryExpression

use of org.datanucleus.query.expression.PrimaryExpression in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterWithCast.

/**
 * Tests for "(cast)expr" in filter.
 */
public void testFilterWithCast() {
    JavaQueryCompiler compiler = null;
    QueryCompilation compilation = null;
    try {
        compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "((Book)this).author == 'Tolkien'", 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 DyadicExpression but is " + expr, expr instanceof DyadicExpression);
    DyadicExpression dyExpr = (DyadicExpression) expr;
    Expression leftExpr = dyExpr.getLeft();
    assertTrue("Left side should be PrimaryExpression but is " + leftExpr, leftExpr instanceof PrimaryExpression);
    PrimaryExpression primExpr = (PrimaryExpression) leftExpr;
    assertTrue("PrimaryExpression should have left of CastExpression but is " + primExpr.getLeft(), primExpr.getLeft() instanceof DyadicExpression);
    DyadicExpression castDyExpr = (DyadicExpression) primExpr.getLeft();
    assertTrue("Cast DyadicExpression left should be PrimaryExpression", castDyExpr.getLeft() instanceof PrimaryExpression);
    assertTrue("Cast DyadicExpression right should be PrimaryExpression", castDyExpr.getRight() instanceof Literal);
    assertEquals("Cast class is incorrect", "Book", ((Literal) castDyExpr.getRight()).getLiteral());
    PrimaryExpression castPrimExpr = (PrimaryExpression) castDyExpr.getLeft();
    assertEquals("Expression being cast is incorrect", "this", castPrimExpr.getId());
    assertEquals("PrimaryExpression off cast is incorrect", "author", primExpr.getId());
    Expression rightExpr = dyExpr.getRight();
    assertTrue("Right side should be Literal but is " + rightExpr, rightExpr instanceof Literal);
    assertEquals("Right side literal value is incorrect", "Tolkien", ((Literal) rightExpr).getLiteral());
}

Example 75 with PrimaryExpression

use of org.datanucleus.query.expression.PrimaryExpression 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());
}