Examples of org.teiid.query.sql.symbol.ElementSymbol

org.teiid.query.sql.symbol.ElementSymbol

This is a subclass of Symbol representing a single element. An ElementSymbol also is an expression and thus has a type. Element symbols have a variety of attributes that determine how they are displayed - a flag for displaying fully qualified and an optional vdb name.

The "isExternalReference" property indicates whether the element symbol refers to an element from a group outside the current command. Typically this is set to false. Common uses when this is set to true are for variables used within a command, correlated elements within a command, etc.


    /*
     * 1 batch all in memory
     */
    private void helpTestBasicSort(List[] expected, Mode mode) throws Exception {
        ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);


        ElementSymbol es2 = new ElementSymbol("e2"); //$NON-NLS-1$
        es2.setType(DataTypeManager.DefaultDataClasses.STRING);
        
        List elements = new ArrayList();
        elements.add(es1);
        elements.add(es2);

View Full Code Here

        
        helpTestSort(elements, data, sortElements, sortTypes, expected, mode);
    }
    
    private void helpTestAllSorts(int batches) throws Exception {
        ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);


        List elements = new ArrayList();
        elements.add(es1);
        
        int rows = batches * BATCH_SIZE;

View Full Code Here

    @Test public void testAllSort() throws Exception {
        helpTestAllSorts(1);
    }       
    
    @Test public void testDupRemove() throws Exception {
      ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
        BufferManager bm = BufferManagerFactory.getStandaloneBufferManager();
        TupleBuffer tsid = bm.createTupleBuffer(Arrays.asList(es1), "test", TupleSourceType.PROCESSOR); //$NON-NLS-1$
        tsid.addTuple(Arrays.asList(1));
      SortUtility su = new SortUtility(tsid.createIndexedTupleSource(), Arrays.asList(es1), Arrays.asList(Boolean.TRUE), Mode.DUP_REMOVE, bm, "test", tsid.getSchema()); //$NON-NLS-1$
      TupleBuffer out = su.sort();

View Full Code Here

    public void helpTestDuplicateFilter(Object[] input, Class dataType, int expected) throws TeiidComponentException, TeiidProcessingException {
        BufferManager mgr = BufferManagerFactory.getStandaloneBufferManager();
        
        SortingFilter filter = new SortingFilter(new Count(), mgr, "test", true); //$NON-NLS-1$
        filter.initialize(dataType, dataType);
        ElementSymbol element = new ElementSymbol("val"); //$NON-NLS-1$
        element.setType(dataType);
        filter.setElements(Arrays.asList(element));
        filter.reset();
        
        // Add inputs
        for(int i=0; i<input.length; i++) {

View Full Code Here

            final Expression expr = item.getSymbol();
            int index = topCols.indexOf(expr);
            if (index < 0) {
              continue;
            }
            ElementSymbol symbol = symbolOrder.get(index);
            if (!outputElements.contains(symbol)) {
                outputElements.add(symbol);
            }
        }
        return outputElements;

View Full Code Here

    @Test public void testDefect18832_2() {
        String sql = "SELECT a.*, b.* from (SELECT null as a, e1 FROM pm1.g1) a, (SELECT e1 FROM pm1.g1) b"; //$NON-NLS-1$
        Command c = helpResolve(sql);
        List projectedSymbols = c.getProjectedSymbols();
        for(int i=0; i< projectedSymbols.size(); i++) {
            ElementSymbol symbol = (ElementSymbol)projectedSymbols.get(i);
            assertTrue(!symbol.getType().equals(DataTypeManager.DefaultDataClasses.NULL));           
        }
    }

View Full Code Here

        List projected = proc.getProjectedSymbols();
        
        assertEquals(2, projected.size());
        
        for (Iterator i = projected.iterator(); i.hasNext();) {
            ElementSymbol symbol = (ElementSymbol)i.next();
            assertNotNull(symbol.getGroupSymbol());
        }
    }

View Full Code Here

    public List<ElementSymbol> getResultSetColumns(){
        SPParameter resultSetParameter = getResultSetParameter();
        if(resultSetParameter != null){
            List<ElementSymbol> result = new LinkedList<ElementSymbol>();
            for (Iterator<ElementSymbol> i = resultSetParameter.getResultSetColumns().iterator(); i.hasNext();) {
                ElementSymbol symbol = (ElementSymbol)i.next().clone();
                symbol.setGroupSymbol(getGroup());
                result.add(symbol);
            }
          return result;
      }
      return Collections.emptyList();

View Full Code Here

      return result;
    }
    //add out/inout parameter symbols
    for (SPParameter parameter : mapOfParameters.values()) {
      if(parameter.getParameterType() == ParameterInfo.RETURN_VALUE){
                ElementSymbol symbol = parameter.getParameterSymbol();
                symbol.setGroupSymbol(this.getGroup());
                result.add(0, symbol);
          } else if(parameter.getParameterType() == ParameterInfo.INOUT || parameter.getParameterType() == ParameterInfo.OUT){
                ElementSymbol symbol = parameter.getParameterSymbol();
                symbol.setGroupSymbol(this.getGroup());
            result.add(symbol);
          }
    }
    return result;
  }

View Full Code Here

            for (int expr = 0; expr < critElements.length; expr++) {
                //simplifying assumption that there will be a single element on the dependent side
                if (critElements[expr].size() != 1) {
                    continue;
                }
                ElementSymbol elem = critElements[expr].iterator().next();
                if (!dependentGroupToSourceMap.containsKey(elem.getGroupSymbol())) {
                    continue;
                }
                //this is also a simplifying assumption.  don't consider criteria that can't be pushed
                if (containsFunctionsThatCannotBePushed(expr==0?compareCriteria.getRightExpression():compareCriteria.getLeftExpression())) {
                    continue;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.teiid.query.sql.symbol.ElementSymbol

org.teiid.common.buffer.TestSTree

org.teiid.common.buffer.TestTupleBuffer

org.teiid.dqp.internal.datamgr.TestElementImpl

org.teiid.query.mapping.xml.MappingSourceNode

org.teiid.query.optimizer.relational.rules.FrameUtil

org.teiid.query.optimizer.relational.rules.NewCalculateCostUtil

org.teiid.query.optimizer.relational.rules.RuleDecomposeJoin

org.teiid.query.optimizer.relational.rules.RulePushAggregates

org.teiid.query.optimizer.relational.rules.TestCapabilitiesUtil

org.teiid.query.optimizer.relational.rules.TestFrameUtil

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.