Examples of org.apache.derby.impl.sql.GenericPreparedStatement

org.apache.derby.impl.sql.GenericPreparedStatement
Basic implementation of prepared statement. relies on implementation of ResultDescription and Statement that are also in this package.
These are both dependents (of the schema objects and prepared statements they depend on) and providers. Prepared statements that are providers are cursors that end up being used in positioned delete and update statements (at present).
This is impl with the regular prepared statements; they will never have the cursor info fields set.
Stored prepared statements extend this implementation

    Cacheable cachedItem = statementCache.find(statement);


    CachedStatement cs = (CachedStatement) cachedItem;




    GenericPreparedStatement ps = cs.getPreparedStatement();


    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();


        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }


        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
        // user code is impossible to manage. E.g. an open ResultSet would hold onto

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        Cacheable cachedItem = statementCache.find(statement);


        CachedStatement cs = (CachedStatement) cachedItem;




        GenericPreparedStatement ps = cs.getPreparedStatement();


        synchronized (ps) {
            if (ps.upToDate()) {
                GeneratedClass ac = ps.getActivationClass();


                // Check to see if the statement was prepared before some change
                // in the class loading set. If this is the case then force it to be invalid
                int currentClasses =
                        getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


                if (ac.getClassLoaderVersion() != currentClasses) {
                    ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
                }


                // note that the PreparedStatement is not kept in the cache. This is because
                // having items kept in the cache that ultimately are held onto by
                // user code is impossible to manage. E.g. an open ResultSet would hold onto

View Full Code Here

    if (statementCache != null) {
      final Collection values = statementCache.values();
      data = new Vector(values.size());
      for (Iterator i = values.iterator(); i.hasNext(); ) {
        final CachedStatement cs = (CachedStatement) i.next();
        final GenericPreparedStatement ps =
          (GenericPreparedStatement) cs.getPreparedStatement();
        data.add(ps);
      }
    }
  }

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          double optimizerEstimatedRowCount,
          double optimizerEstimatedCost) 
    throws StandardException
  {
    super(a, resultSetNumber, optimizerEstimatedRowCount, optimizerEstimatedCost);
    final GenericPreparedStatement gp =
      (GenericPreparedStatement)a.getPreparedStatement();
    final Object[] saved = gp.getSavedObjects();


    scoci = (StaticCompiledOpenConglomInfo)saved[scociItem];
    TransactionController tc = activation.getTransactionController();
    dcoci = tc.getDynamicCompiledConglomInfo(conglomId);
        this.source = source;

View Full Code Here




        CachedItem ci = (CachedItem) e.nextElement();
        CachedStatement cs = (CachedStatement) ci.getEntry();


        GenericPreparedStatement ps = (GenericPreparedStatement) cs.getPreparedStatement();


        data.addElement(ps);
      }
    }

View Full Code Here

  /**
  */
  public Cacheable setIdentity(Object key) {


    identity = key;
    ps = new GenericPreparedStatement((GenericStatement) key);
    ps.setCacheHolder(this);


    return this;
  }

View Full Code Here

    Cacheable cachedItem = statementCache.find(statement);


    CachedStatement cs = (CachedStatement) cachedItem;




    GenericPreparedStatement ps = cs.getPreparedStatement();


    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();


        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }


        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
        // user code is impossible to manage. E.g. an open ResultSet would hold onto

View Full Code Here

    Cacheable cachedItem = statementCache.find(statement);


    CachedStatement cs = (CachedStatement) cachedItem;




    GenericPreparedStatement ps = cs.getPreparedStatement();


    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();


        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }


        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
        // user code is impossible to manage. E.g. an open ResultSet would hold onto

View Full Code Here

    Cacheable cachedItem = statementCache.find(statement);


    CachedStatement cs = (CachedStatement) cachedItem;




    GenericPreparedStatement ps = cs.getPreparedStatement();


    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();


        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }


        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
        // user code is impossible to manage. E.g. an open ResultSet would hold onto

View Full Code Here

    Cacheable cachedItem = statementCache.find(statement);


    CachedStatement cs = (CachedStatement) cachedItem;




    GenericPreparedStatement ps = cs.getPreparedStatement();


    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();


        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();


        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }


        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
        // user code is impossible to manage. E.g. an open ResultSet would hold onto

View Full Code Here

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