Examples with CallableStatementSupport org.hibernate.procedure.spi.CallableStatementSupport used on opensource projects

Example 1 with CallableStatementSupport

use of org.hibernate.procedure.spi.CallableStatementSupport in project hibernate-orm by hibernate.

the class ProcedureCallImpl method buildOutputs.

private ProcedureOutputsImpl buildOutputs() {
    // todo : going to need a very specialized Loader for this.
    // or, might be a good time to look at splitting Loader up into:
    // 1) building statement objects
    // 2) executing statement objects
    // 3) processing result sets
    // for now assume there are no resultClasses nor mappings defined..
    // TOTAL PROOF-OF-CONCEPT!!!!!!
    // todo : how to identify calls which should be in the form `{? = call procName...}` ??? (note leading param marker)
    // more than likely this will need to be a method on the native API.  I can see this as a trigger to
    // both: (1) add the `? = ` part and also (2) register a REFCURSOR parameter for DBs (Oracle, PGSQL) that
    // need it.
    final CallableStatementSupport callableStatementSupport = getSession().getJdbcServices().getJdbcEnvironment().getDialect().getCallableStatementSupport();
    this.call = callableStatementSupport.interpretCall(this);
    final Map<ProcedureParameter<?>, JdbcCallParameterRegistration> parameterRegistrations = new IdentityHashMap<>();
    final List<JdbcCallRefCursorExtractor> refCursorExtractors = new ArrayList<>();
    if (call.getFunctionReturn() != null) {
        parameterRegistrations.put(functionReturn, call.getFunctionReturn());
        final JdbcCallRefCursorExtractorImpl refCursorExtractor = call.getFunctionReturn().getRefCursorExtractor();
        if (refCursorExtractor != null) {
            refCursorExtractors.add(refCursorExtractor);
        }
    }
    final List<? extends ProcedureParameterImplementor<?>> registrations = getParameterMetadata().getRegistrationsAsList();
    final List<JdbcCallParameterRegistration> jdbcParameters = call.getParameterRegistrations();
    for (int i = 0; i < registrations.size(); i++) {
        final JdbcCallParameterRegistration jdbcCallParameterRegistration = jdbcParameters.get(i);
        parameterRegistrations.put(registrations.get(i), jdbcCallParameterRegistration);
        final JdbcCallRefCursorExtractorImpl refCursorExtractor = jdbcCallParameterRegistration.getRefCursorExtractor();
        if (refCursorExtractor != null) {
            refCursorExtractors.add(refCursorExtractor);
        }
    }
    LOG.debugf("Preparing procedure call : %s", call);
    final CallableStatement statement = (CallableStatement) getSession().getJdbcCoordinator().getStatementPreparer().prepareStatement(call.getSql(), true);
    // Register the parameter mode and type
    callableStatementSupport.registerParameters(procedureName, call, statement, parameterMetadata, getSession());
    // Apply the parameter bindings
    final JdbcParameterBindings jdbcParameterBindings = new JdbcParameterBindingsImpl(parameterRegistrations.size());
    for (Map.Entry<ProcedureParameter<?>, JdbcCallParameterRegistration> entry : parameterRegistrations.entrySet()) {
        final JdbcCallParameterRegistration registration = entry.getValue();
        if (registration.getParameterBinder() != null) {
            final ProcedureParameter<?> parameter = entry.getKey();
            final QueryParameterBinding<?> binding = getParameterBindings().getBinding(parameter);
            if (!binding.isBound()) {
                if (parameter.getPosition() == null) {
                    throw new IllegalArgumentException("The parameter named [" + parameter + "] was not set! You need to call the setParameter method.");
                } else {
                    throw new IllegalArgumentException("The parameter at position [" + parameter + "] was not set! You need to call the setParameter method.");
                }
            }
            jdbcParameterBindings.addBinding((JdbcParameter) registration.getParameterBinder(), new JdbcParameterBindingImpl((JdbcMapping) registration.getParameterType(), binding.getBindValue()));
        }
    }
    final JdbcCallRefCursorExtractor[] extractors = refCursorExtractors.toArray(new JdbcCallRefCursorExtractor[0]);
    final ExecutionContext executionContext = new ExecutionContext() {

        private final Callback callback = new CallbackImpl();

        @Override
        public SharedSessionContractImplementor getSession() {
            return ProcedureCallImpl.this.getSession();
        }

        @Override
        public QueryOptions getQueryOptions() {
            return new QueryOptionsAdapter() {

                @Override
                public Boolean isReadOnly() {
                    return false;
                }
            };
        }

        @Override
        public String getQueryIdentifier(String sql) {
            return sql;
        }

        @Override
        public QueryParameterBindings getQueryParameterBindings() {
            return QueryParameterBindings.NO_PARAM_BINDINGS;
        }

        @Override
        public Callback getCallback() {
            return callback;
        }
    };
    try {
        int paramBindingPosition = call.getFunctionReturn() == null ? 1 : 2;
        for (JdbcParameterBinder parameterBinder : call.getParameterBinders()) {
            parameterBinder.bindParameterValue(statement, paramBindingPosition, jdbcParameterBindings, executionContext);
            paramBindingPosition++;
        }
    } catch (SQLException e) {
        throw getSession().getJdbcServices().getSqlExceptionHelper().convert(e, "Error registering CallableStatement parameters", procedureName);
    }
    return new ProcedureOutputsImpl(this, parameterRegistrations, extractors, statement);
}