Package org.eclipse.persistence.internal.sessions

Examples of org.eclipse.persistence.internal.sessions.AbstractRecord$KeySet

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                        if ((!hasJoining() || !getJoinedAttributeManager().hasJoinedAttributeExpressions()) && (!hasPartialAttributeExpressions()) && (!hasAsOfClause()) && (!hasNonDefaultFetchGroup()) && (getHintString() == null) && wasDefaultLockMode() && shouldIgnoreBindAllParameters() && (!hasFetchGroup()) && (getFetchGroupName() == null) && shouldUseDefaultFetchGroup()) {
                            if ((getSelectionKey() != null) || (getSelectionObject() != null)) {// Must be primary key.
                                setIsCustomQueryUsed(true);
                            } else {           
                                if (getSelectionCriteria() != null) {
                                    AbstractRecord primaryKeyRow = getDescriptor().getObjectBuilder().extractPrimaryKeyRowFromExpression(getSelectionCriteria(), translationRow, session);
               
                                    // Only execute the query if the selection criteria has the primary key fields set
                                    if (primaryKeyRow != null) {
                                        setIsCustomQueryUsed(true);
                                    }
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                setExecutionTime(System.currentTimeMillis());
                return returnValue;
            }
        }
       
        AbstractRecord row = null;
        AbstractSession session = getSession();
        // If using 1-m joins, must select all rows.
        if (hasJoining() && getJoinedAttributeManager().isToManyJoin()) {
            List rows = getQueryMechanism().selectAllRows();
            if (rows.size() > 0) {
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        UnitOfWorkImpl unitOfWork = (UnitOfWorkImpl)getSession();
        DatabaseAccessor accessor = (DatabaseAccessor)unitOfWork.getAccessor();
        DatabasePlatform platform = accessor.getPlatform();
        DatabaseCall call = (DatabaseCall)getCall().clone();
        call.setQuery(this);
        AbstractRecord translationRow = getTranslationRow();
        call.translate(getTranslationRow(), null, unitOfWork);
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        boolean exceptionOccured = false;
        try {
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        customReadQuery.setShouldUseWrapperPolicy(shouldUseWrapperPolicy());
        // CR... was missing some values, execution could cause infinite loop.
        customReadQuery.setQueryId(getQueryId());
        customReadQuery.setExecutionTime(getExecutionTime());
        customReadQuery.setShouldLoadResultIntoSelectionObject(shouldLoadResultIntoSelectionObject());
        AbstractRecord primaryKeyRow;
        if (getSelectionObject() != null) {
            // CR#... Must also set the selection object as may be loading into the object (refresh)
            customReadQuery.setSelectionObject(getSelectionObject());
            // The translation/primary key row will be set in prepareForExecution.
        } else if (getSelectionKey() != null) {
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        DatabaseCall call = null;
        if (shouldPrepare) {
            call = query.getConcreteSubclassCalls().get(query.getReferenceClass());
        }
        if (call == null) {
            AbstractRecord translationRow = query.getTranslationRow();
            if (shouldPrepare) {
                query.setTranslationRow(null);
            }
            setSQLStatement(buildConcreteSelectStatement());
            // Must also build the call.
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        while (true) {
            if (isClosed()) {
                return null;
            }

            AbstractRecord row = getAccessor().cursorRetrieveNextRow(getFields(), getResultSet(), getExecutionSession());

            if (row == null) {
                if (!(this instanceof ScrollableCursor)) {
                    close();
                }
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        while (true) {
            if (isClosed()) {
                return null;
            }

            AbstractRecord row = getAccessor().cursorRetrievePreviousRow(getFields(), getResultSet(), getExecutionSession());

            if (row == null) {
                if (!(this instanceof ScrollableCursor)) {
                    close();
                }
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     */
    public void prepareForExecution() throws QueryException {
        super.prepareForExecution();
        DatabaseCall databaseCall = this.getCall();
        if ( databaseCall !=null && databaseCall.shouldIgnoreFirstRowMaxResultsSettings() ){
            AbstractRecord parameters = this.getTranslationRow();
            if (parameters.isEmpty()){
                parameters = new DatabaseRecord();
            }
            parameters.add(DatabaseCall.FIRSTRESULT_FIELD, this.getFirstResult());
            parameters.add(DatabaseCall.MAXROW_FIELD, session.getPlatform().computeMaxRowsForSQL(this.getFirstResult(), this.getMaxRows()));
            this.setTranslationRow(parameters);
        }
    }
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     * INTERNAL:
     * Return if this is a read query.
     */
    public Object remoteExecute(AbstractSession session) throws DatabaseException {
        if (shouldCacheQueryResults()) {
            AbstractRecord arguments = new DatabaseRecord();
            if (translationRow != null){
                arguments = translationRow;
            }
            Object queryResults = getQueryResults(session, arguments, true);
            if (queryResults != null) {
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    public Object executeDatabaseQuery() throws DatabaseException {
        // Get the required fields for does exist check.
        DatabaseField field = getDoesExistField();

        // Get row from database
        AbstractRecord databaseRow = getQueryMechanism().selectRowForDoesExist(field);

        // Null means no row was returned.
        return new Boolean(databaseRow != null);
    }
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