Examples with JoinPredicate org.teiid.query.sql.lang.JoinPredicate used on opensource projects

Example 1 with JoinPredicate

use of org.teiid.query.sql.lang.JoinPredicate in project teiid by teiid.

the class TestJoinPredicate method testNonEquivalence2.

/**
 * Test a <code>JoinPredicate</code> object using <code>UnitTestUtil.helpTestEquivalence</code>.
 * <p>
 * This test ensures that two different <code>JoinPredicate</code> objects
 * constructed with the same join type but with different criteria evaluate
 * as not equal.
 * <p>
 * For example:
 * ... m.g1 FULL OUTER JOIN m.g2 ON ((m.g1.e1 = m.g2.e1) AND (m.g1.e2 = m.g2.e2))
 * ... m.g1 FULL OUTER JOIN m.g2 ON ((m.g1.e2 = m.g2.e2) AND (m.g1.e1 = m.g2.e1))
 */
public void testNonEquivalence2() {
    // $NON-NLS-1$ //$NON-NLS-2$
    JoinPredicate jp1 = example(JoinType.JOIN_LEFT_OUTER, "e1", "e2");
    // $NON-NLS-1$ //$NON-NLS-2$
    JoinPredicate jp2 = example(JoinType.JOIN_LEFT_OUTER, "e2", "e1");
    int equals = -1;
    UnitTestUtil.helpTestEquivalence(equals, jp1, jp2);
}

Example 2 with JoinPredicate

use of org.teiid.query.sql.lang.JoinPredicate in project teiid by teiid.

the class TestJoinPredicate method testEquals4.

/**
 * Test <code>equals()</code> method of <code>JoinPredicate</code> to
 * verify it properly evaluates the equality of two <code>JoinPredicate</code>
 * objects.
 * <p>
 * This test ensures that two different <code>JoinPredicate</code> objects
 * that were constructed with the same join type but with different
 * criteria evaluate as not equal.
 * <p>
 * For example:
 * ... m.g1 INNER JOIN m.g2 ON m.g1.e1 = m.g2.e1
 * ... m.g1 INNER JOIN m.g2 ON m.g1.e2 = m.g2.e2
 */
public void testEquals4() {
    // $NON-NLS-1$
    JoinPredicate jp1 = example(JoinType.JOIN_INNER, "e1");
    // $NON-NLS-1$
    JoinPredicate jp2 = example(JoinType.JOIN_INNER, "e2");
    // $NON-NLS-1$ //$NON-NLS-2$
    assertTrue("Different join predicate compare as equal: " + jp1 + ", " + jp2, !jp1.equals(jp2));
}

Example 3 with JoinPredicate

use of org.teiid.query.sql.lang.JoinPredicate in project teiid by teiid.

the class TestJoinPredicate method example.

// ################################## TEST HELPERS ################################
/**
 * Constructs an example <code>JoinPredicate</code> object that can be used
 * as join predicate in a query.
 *
 * @param joinType the type of join to be constructed
 * @param joinOnElement the element name to be used in the left and right
 * 						side criteria of the ON expression of the join
 * @return a join predicate object
 */
public static JoinPredicate example(JoinType joinType, String joinOnElement) {
    JoinPredicate jp = new JoinPredicate();
    // $NON-NLS-1$
    GroupSymbol g1 = new GroupSymbol("m.g1");
    // $NON-NLS-1$
    GroupSymbol g2 = new GroupSymbol("m.g2");
    FromClause lc = new UnaryFromClause(g1);
    FromClause rc = new UnaryFromClause(g2);
    // $NON-NLS-1$
    Expression le = new ElementSymbol("m.g1." + joinOnElement);
    // $NON-NLS-1$
    Expression re = new ElementSymbol("m.g2." + joinOnElement);
    Criteria c1 = new CompareCriteria(le, CompareCriteria.EQ, re);
    jp.setLeftClause(lc);
    jp.setRightClause(rc);
    jp.setJoinType(joinType != null ? joinType : JoinType.JOIN_LEFT_OUTER);
    jp.setJoinCriteria(Arrays.asList(new Object[] { c1 }));
    return jp;
}

Example 4 with JoinPredicate

use of org.teiid.query.sql.lang.JoinPredicate in project teiid by teiid.

the class TestJoinPredicate method testEquals3.

/**
 * Test <code>equals()</code> method of <code>JoinPredicate</code> to
 * verify it properly evaluates the equality of two <code>JoinPredicate</code>
 * objects.
 * <p>
 * This test ensures that two different <code>JoinPredicate</code> objects
 * that were constructed with different join types but with the same
 * compound criteria evaluate as not equal.
 * <p>
 * For example:
 * ... m.g1 LEFT OUTER JOIN m.g2 ON ((m.g1.e1 = m.g2.e1) AND (m.g1.e2 = m.g2.e2))
 * ... m.g1 RIGHT OUTER JOIN m.g2 ON ((m.g1.e1 = m.g2.e1) AND (m.g1.e2 = m.g2.e2))
 */
public void testEquals3() {
    // $NON-NLS-1$ //$NON-NLS-2$
    JoinPredicate jp1 = example(JoinType.JOIN_LEFT_OUTER, "e1", "e2");
    // $NON-NLS-1$ //$NON-NLS-2$
    JoinPredicate jp2 = example(JoinType.JOIN_RIGHT_OUTER, "e1", "e2");
    // $NON-NLS-1$ //$NON-NLS-2$
    assertTrue("Different join predicate compare as equal: " + jp1 + ", " + jp2, !jp1.equals(jp2));
}

Example 5 with JoinPredicate

use of org.teiid.query.sql.lang.JoinPredicate in project teiid by teiid.

the class TestJoinPredicate method testEquals1.

// ################################## ACTUAL TESTS ################################
/**
 * Test <code>equals()</code> method of <code>JoinPredicate</code> to
 * verify it properly evaluates the equality of two <code>JoinPredicate</code>
 * objects.
 * <p>
 * This test ensures that two different <code>JoinPredicate</code> objects
 * that were constructed with the same join type and with the same criteria
 * evaluate as equal.
 * <p>
 * For example:
 * ... m.g1 LEFT OUTER JOIN m.g2 ON m.g1.e1 = m.g2.e1
 */
public void testEquals1() {
    // $NON-NLS-1$
    JoinPredicate jp1 = example(JoinType.JOIN_LEFT_OUTER, "e1");
    // $NON-NLS-1$
    JoinPredicate jp2 = example(JoinType.JOIN_LEFT_OUTER, "e1");
    // $NON-NLS-1$ //$NON-NLS-2$
    assertTrue("Equivalent join predicate don't compare as equal: " + jp1 + ", " + jp2, jp1.equals(jp2));
}