Examples with IdentificationVariable org.eclipse.persistence.jpa.jpql.parser.IdentificationVariable used on opensource projects

Example 11 with IdentificationVariable

use of org.eclipse.persistence.jpa.jpql.parser.IdentificationVariable in project eclipselink by eclipse-ee4j.

the class AbstractSemanticValidator method validateIdentificationVariables.

/**
 * Validates the identification variables:
 * <ul>
 * <li>Assures those used throughout the query have been defined in the <code><b>FROM</b></code>
 * clause in the current subquery or in a superquery.</li>
 * <li>They have been defined only once.</li>
 * </ul>
 */
protected void validateIdentificationVariables() {
    // Collect the identification variables from the Declarations
    Map<String, List<IdentificationVariable>> identificationVariables = new HashMap<>();
    helper.collectLocalDeclarationIdentificationVariables(identificationVariables);
    // Check for duplicate identification variables
    for (Map.Entry<String, List<IdentificationVariable>> entry : identificationVariables.entrySet()) {
        List<IdentificationVariable> variables = entry.getValue();
        // More than one identification variable was used in a declaration
        if (variables.size() > 1) {
            for (IdentificationVariable variable : variables) {
                addProblem(variable, IdentificationVariable_Invalid_Duplicate, variable.getText());
            }
        }
    }
    // Now collect the identification variables from the parent queries
    identificationVariables.clear();
    helper.collectAllDeclarationIdentificationVariables(identificationVariables);
    // Check for undeclared identification variables
    for (IdentificationVariable identificationVariable : usedIdentificationVariables) {
        String variableName = identificationVariable.getText();
        if (ExpressionTools.stringIsNotEmpty(variableName) && !identificationVariables.containsKey(variableName.toUpperCase(Locale.ROOT))) {
            addProblem(identificationVariable, IdentificationVariable_Invalid_NotDeclared, variableName);
        }
    }
}

Example 12 with IdentificationVariable

use of org.eclipse.persistence.jpa.jpql.parser.IdentificationVariable in project eclipselink by eclipse-ee4j.

the class JPQLExpressionTest1_0 method testGetExpression_3.

@Test
public void testGetExpression_3() {
    String query = "SELECT e FROM Employee e";
    JPQLExpression jpqlExpression = JPQLQueryBuilder.buildQuery(query, getGrammar(), true);
    Expression expression = jpqlExpression.getExpression(query, 8);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof IdentificationVariable);
    expression = jpqlExpression.getExpression(query, 6);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof SelectClause);
}