Package org.teiid.query.optimizer.capabilities

Examples of org.teiid.query.optimizer.capabilities.SourceCapabilities.supportsCapability()

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        }

        // Find capabilities
        SourceCapabilities caps = getCapabilities(modelID, metadata, capFinder);
 
        return caps.supportsCapability(Capability.QUERY_FROM_JOIN_SELFJOIN) &&
                caps.supportsCapability(Capability.QUERY_FROM_GROUP_ALIAS);
    }

    public static boolean supportsGroupAliases(Object modelID, QueryMetadataInterface metadata, CapabilitiesFinder capFinder)
        throws QueryMetadataException, TeiidComponentException {
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        // Find capabilities
        SourceCapabilities caps = getCapabilities(modelID, metadata, capFinder);
 
        return caps.supportsCapability(Capability.QUERY_FROM_JOIN_SELFJOIN) &&
                caps.supportsCapability(Capability.QUERY_FROM_GROUP_ALIAS);
    }

    public static boolean supportsGroupAliases(Object modelID, QueryMetadataInterface metadata, CapabilitiesFinder capFinder)
        throws QueryMetadataException, TeiidComponentException {
        return supports(Capability.QUERY_FROM_GROUP_ALIAS, modelID, metadata, capFinder);
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        // Find capabilities
        SourceCapabilities caps = getCapabilities(modelID, metadata, capFinder);

        if (!joinType.isOuter()) {
          return caps.supportsCapability(Capability.QUERY_FROM_JOIN_INNER);
        }
       
        if(! caps.supportsCapability(Capability.QUERY_FROM_JOIN_OUTER)) {
            return false;
        }
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        if (!joinType.isOuter()) {
          return caps.supportsCapability(Capability.QUERY_FROM_JOIN_INNER);
        }
       
        if(! caps.supportsCapability(Capability.QUERY_FROM_JOIN_OUTER)) {
            return false;
        }
       
        return !joinType.equals(JoinType.JOIN_FULL_OUTER) || caps.supportsCapability(Capability.QUERY_FROM_JOIN_OUTER_FULL);
    }
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        if(! caps.supportsCapability(Capability.QUERY_FROM_JOIN_OUTER)) {
            return false;
        }
       
        return !joinType.equals(JoinType.JOIN_FULL_OUTER) || caps.supportsCapability(Capability.QUERY_FROM_JOIN_OUTER_FULL);
    }

    public static boolean supportsAggregates(List groupCols, Object modelID, QueryMetadataInterface metadata, CapabilitiesFinder capFinder)
    throws QueryMetadataException, TeiidComponentException {
       
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        // Find capabilities
        SourceCapabilities caps = getCapabilities(modelID, metadata, capFinder);
       
        if (groupCols != null && !groupCols.isEmpty()) {
          if (!caps.supportsCapability(Capability.QUERY_GROUP_BY)) {
            return false;
          }
            boolean supportsFunctionsInGroupBy = caps.supportsCapability(Capability.QUERY_FUNCTIONS_IN_GROUP_BY);

            // Also verify that if there is a function that we can support pushdown of functions in group by
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        if (groupCols != null && !groupCols.isEmpty()) {
          if (!caps.supportsCapability(Capability.QUERY_GROUP_BY)) {
            return false;
          }
            boolean supportsFunctionsInGroupBy = caps.supportsCapability(Capability.QUERY_FUNCTIONS_IN_GROUP_BY);

            // Also verify that if there is a function that we can support pushdown of functions in group by
            Iterator colIter = groupCols.iterator();
            while(colIter.hasNext()) {
                Expression col = (Expression) colIter.next();
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        // Check particular function
        Type func = aggregate.getAggregateFunction();
        switch (func) {
        case COUNT:
            if(aggregate.getExpression() == null) {
                if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_COUNT_STAR)) {
                    return false;
                }
            } else {
                if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_COUNT)) {
                    return false;
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            if(aggregate.getExpression() == null) {
                if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_COUNT_STAR)) {
                    return false;
                }
            } else {
                if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_COUNT)) {
                    return false;
                }               
            }
            break;
        case SUM:
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                    return false;
                }               
            }
            break;
        case SUM:
            if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_SUM)) {
                return false;
            }
            break;
        case AVG:
            if(! caps.supportsCapability(Capability.QUERY_AGGREGATES_AVG)) {
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