Examples of javax.jdo.Query.declareVariables()

javax.jdo.Query.declareVariables()
Declare the unbound variables to be used in the query. Variables might be used in the filter, and these variables must be declared with their type. The unbound variable declaration is a String containing one or more unbound variable declarations separated with semicolons. It follows the syntax for local variables in the Java language. @param variables the variables separated by semicolons.

            query.declareParameters( "int projectGroupId" );


            query.setFilter(
                "this.id == projectGroupId && this.buildDefinitions.contains(buildDef) && buildDef.defaultForProject == true" );


            query.declareVariables( "BuildDefinition buildDef" );


            query.setResult( "buildDef" );


            List<BuildDefinition> result = (List<BuildDefinition>) query.execute( projectGroupId );

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            query.declareParameters( "int projectId" );


            query.setFilter(
                "project.id == projectId && project.buildDefinitions.contains(this) && this.defaultForProject == true" );


            query.declareVariables( "Project project" );


            query.setResult( "this" );


            List<BuildDefinition> result = (List<BuildDefinition>) query.execute( projectId );

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        query.setUnique(false);
        query.setResult(null);
        query.setResultClass(null);
        query.setClass(FullTimeEmployee.class);
        query.setFilter(null);
        query.declareVariables(null);
        query.declareParameters(null);
        query.declareImports(null);
        query.setGrouping(null);
        query.setOrdering(null);
        query.setRange(null);

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            tx.begin();
            Query query = pm.newQuery();
            query.setClass(clazz);
            query.setCandidates(pm.getExtent(clazz, false));
            try {
                query.declareVariables( "org.apache.jdo.tck.pc.company.Person reviewers;" );
                query.setFilter( "reviewers.contains(reviewers)" );
                Object results = query.execute();
                fail(ASSERTION_FAILED,
                     "Variable declaration \"Person reviewers\" did not hide field Person.reviewers");
            }

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        try {
            tx.begin();
            Query query = pm.newQuery();
            query.setClass(clazz);
            query.setCandidates(pm.getExtent(clazz, false));
            query.declareVariables( "org.apache.jdo.tck.pc.company.Person reviewers;" );
            query.setFilter( "this.reviewers.contains(reviewers) && reviewers.firstname==\"brazil\"" );
            Object results = query.execute();
        } 
        finally {
            if (tx.isActive())

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                null, expectedResult[index], true);
        
        // replace variable declaration
        index++;
        query = VALID_QUERIES[index].getAPIQuery(getPM());
        query.declareVariables("Employee e");
        executeJDOQuery(ASSERTION_FAILED, query, VALID_QUERIES[index].toString(), false, 
                null, expectedResult[index], true);
        query = VALID_QUERIES[index].getSingleStringQuery(getPM());
        query.declareVariables("Employee e");
        executeJDOQuery(ASSERTION_FAILED, query, VALID_QUERIES[index].toString(), false,

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        query = VALID_QUERIES[index].getAPIQuery(getPM());
        query.declareVariables("Employee e");
        executeJDOQuery(ASSERTION_FAILED, query, VALID_QUERIES[index].toString(), false, 
                null, expectedResult[index], true);
        query = VALID_QUERIES[index].getSingleStringQuery(getPM());
        query.declareVariables("Employee e");
        executeJDOQuery(ASSERTION_FAILED, query, VALID_QUERIES[index].toString(), false, 
                null, expectedResult[index], true);
    }
    
    /**

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                        "p.budget > limit";
        query.setFilter(filter);
        String imports = "import org.apache.jdo.tck.pc.company.Project; " +
                         "import java.math.BigDecimal;";
        query.declareImports(imports);
        query.declareVariables("Project p");
        query.declareParameters("BigDecimal limit");
        query.setOrdering("firstname ASCENDING, lastname ASCENDING");
        query.setRange(0, 5);
        String singleStringQuery = 
            "SELECT DISTINCT firstname, lastname " +

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            tx.begin();
            Query query = pm.newQuery();
            Class clazz = org.apache.jdo.tck.pc.company.Project.class;
            query.setClass(clazz);
            query.setCandidates(pm.getExtent(clazz, false));
            query.declareVariables("org.apache.jdo.tck.pc.company.Person a; org.apache.jdo.tck.pc.company.Person b" );
            query.setFilter("reviewers.contains(a) && a.firstname==\"brazil\" || reviewers.contains(b) && b.firstname==\"brazil\"" );
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ObjectOutputStream oos = new ObjectOutputStream(baos);
            oos.writeObject(query);
            ObjectInputStream ois =

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            Query query = pm.newQuery();
            query.setClass(Department.class);
            query.setCandidates(pm.getExtent(Department.class, false));
            query.declareImports("import org.apache.jdo.tck.pc.company.Employee");
            query.declareVariables("Employee e" );
            query.setFilter("employees.contains(e) && e.firstname==\"Michael\"" );
            Object results = query.execute();


            // Just check whether query with import declaration compiles

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