Examples of javax.jdo.Transaction.begin()

javax.jdo.Transaction.begin()
Begin a transaction. The type of transaction is determined by the setting of the Optimistic flag. @see #setOptimistic @see #getOptimistic @throws JDOUserException if transactions are managed by a containerin the managed environment, or if the transaction is already active.

        char charValue = '\u0000';
        int numInsert = 10;
        
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            for (int i = 1; i <= numInsert; i++ ) {
                if (i%2 == 1) {
                    bFlag = true;
                    strValue = "Odd" + i;
                    charValue = 'O';

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     */
    protected void compile(String assertion, 
            Query query, String queryText, boolean positive) {
        PersistenceManager pm = getPM();
        Transaction tx = pm.currentTransaction();
        tx.begin();
        try {
            query.compile();
            if (!positive) {
                fail(assertion, 
                        "Query compilation must throw JDOUserException: " +

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            String singleStringQuery, boolean hasOrdering,
            Object parameters, Object expectedResult, boolean positive) {
        Object result = null;
        PersistenceManager pm = getPM();
        Transaction tx = pm.currentTransaction();
        tx.begin();
        try {
            try {
                if (parameters == null) {
                    result = query.execute();
                } else if (parameters instanceof Object[]) {

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            String singleStringQuery, Object parameters, 
            long expectedNrOfDeletedObjects) {
        boolean positive = expectedNrOfDeletedObjects >= 0;
        PersistenceManager pm = getPM();
        Transaction tx = pm.currentTransaction();
        tx.begin();
        try {
            try {
                long nr;
                if (parameters == null) {
                    nr = query.deletePersistentAll();

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    /** */
    private void runTestDeclareParameters01(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
    
            Query query = pm.newQuery();
            query.setClass(PCPoint.class);
            query.setCandidates(pm.getExtent(PCPoint.class, false));
            query.declareParameters("Integer param");

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    /** */
    private void runTestDeclareParameters02(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            
            Query query = pm.newQuery();
            query.setClass(PCPoint.class);
            query.setCandidates(pm.getExtent(PCPoint.class, false));
            query.declareParameters("Integer param1, Integer param2");

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    /** */
    void runTestDeclareParameters03(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            Query query = pm.newQuery();
            query.setClass(PCPoint.class);
            query.setCandidates(pm.getExtent(PCPoint.class, false));
            query.declareParameters("int a, int b");

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    }


    private void runTestDeclareImports01(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            Query query = pm.newQuery();
            query.setClass(PCPoint.class);
            query.setCandidates(pm.getExtent(PCPoint.class, false));
            query.declareImports("import java.lang.Integer");

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    /** */
    private void runTestDeclareImports02(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            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");

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    /** */
    private void runTestDeclareImports03(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            Query query = pm.newQuery();
            query.setClass(Company.class);
            query.setCandidates(pm.getExtent(Company.class, false));
            query.declareImports("import org.apache.jdo.tck.pc.company.Employee; import org.apache.jdo.tck.pc.company.Department");

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