Package org.apache.phoenix.expression

Examples of org.apache.phoenix.expression.KeyValueColumnExpression

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    public static Expression constantComparison(CompareOp op, Expression e, Object o) {
        return  new ComparisonExpression(op, Arrays.asList(e, LiteralExpression.newConstant(o)));
    }

    public static Expression columnComparison(CompareOp op, PColumn c1, PColumn c2) {
        return  new ComparisonExpression(op, Arrays.<Expression>asList(new KeyValueColumnExpression(c1), new KeyValueColumnExpression(c2)));
    }
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            };

        PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
        StatementContext context = new StatementContext(new PhoenixStatement(pconn), null, new Scan());
        AggregationManager aggregationManager = context.getAggregationManager();
        SumAggregateFunction func = new SumAggregateFunction(Arrays.<Expression>asList(new KeyValueColumnExpression(new PLongColumn() {
            @Override
            public PName getName() {
                return SINGLE_COLUMN_NAME;
            }
            @Override
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    public static BigDecimal computeAverage(long sum, long count) {
        return BigDecimal.valueOf(sum).divide(BigDecimal.valueOf(count), PDataType.DEFAULT_MATH_CONTEXT);
    }

    public static Expression constantComparison(CompareOp op, PColumn c, Object o) {
        return  new ComparisonExpression(op, Arrays.<Expression>asList(new KeyValueColumnExpression(c), LiteralExpression.newConstant(o)));
    }
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    public static Expression constantComparison(CompareOp op, PColumn c, Object o) {
        return  new ComparisonExpression(op, Arrays.<Expression>asList(new KeyValueColumnExpression(c), LiteralExpression.newConstant(o)));
    }

    public static Expression kvColumn(PColumn c) {
        return new KeyValueColumnExpression(c);
    }
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        ByteArrayInputStream stream = new ByteArrayInputStream(specificArrayIdx);
        try {
            DataInputStream input = new DataInputStream(stream);
            int arrayKVRefSize = WritableUtils.readVInt(input);
            for (int i = 0; i < arrayKVRefSize; i++) {
                KeyValueColumnExpression kvExp = new KeyValueColumnExpression();
                kvExp.readFields(input);
                arrayKVRefs.add(kvExp);
            }
            int arrayKVFuncSize = WritableUtils.readVInt(input);
            Expression[] arrayFuncRefs = new Expression[arrayKVFuncSize];
            for (int i = 0; i < arrayKVFuncSize; i++) {
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                // The size of both the arrays would be same?
                // Using KeyValueSchema to set and retrieve the value
                // collect the first kv to get the row
                KeyValue rowKv = result.get(0);
                for (int i = 0; i < arrayKVRefs.size(); i++) {
                    KeyValueColumnExpression kvExp = arrayKVRefs.get(i);
                    if (kvExp.evaluate(tuple, ptr)) {
                        for (int idx = tuple.size() - 1; idx >= 0; idx--) {
                            KeyValue kv = tuple.getValue(idx);
                            if (Bytes.equals(kvExp.getColumnFamily(), kv.getFamily())
                                    && Bytes.equals(kvExp.getColumnName(), kv.getQualifier())) {
                                // remove the kv that has the full array values.
                                result.remove(idx);
                                break;
                            }
                        }
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    public static BigDecimal computeAverage(long sum, long count) {
        return BigDecimal.valueOf(sum).divide(BigDecimal.valueOf(count), PDataType.DEFAULT_MATH_CONTEXT);
    }

    public static Expression constantComparison(CompareOp op, PColumn c, Object o) {
        return  new ComparisonExpression(op, Arrays.<Expression>asList(new KeyValueColumnExpression(c), LiteralExpression.newConstant(o)));
    }
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    public static Expression constantComparison(CompareOp op, PColumn c, Object o) {
        return  new ComparisonExpression(op, Arrays.<Expression>asList(new KeyValueColumnExpression(c), LiteralExpression.newConstant(o)));
    }

    public static Expression kvColumn(PColumn c) {
        return new KeyValueColumnExpression(c);
    }
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        if (dataColumns != null && dataColumns.length != 0) {
            KeyValueSchema keyValueSchema = deserializeLocalIndexJoinSchemaFromScan(scan);
            KeyValueColumnExpression[] keyValueColumns = new KeyValueColumnExpression[dataColumns.length];
            for (int i = 0; i < dataColumns.length; i++) {
                ColumnReference dataColumn = dataColumns[i];
                KeyValueColumnExpression dataColumnExpr = new KeyValueColumnExpression(keyValueSchema.getField(i), dataColumn.getFamily(), dataColumn.getQualifier());
                keyValueColumns[i] = dataColumnExpr;
            }
            return new TupleProjector(keyValueSchema, keyValueColumns);
        }
        return null;
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        ByteArrayInputStream stream = new ByteArrayInputStream(specificArrayIdx);
        try {
            DataInputStream input = new DataInputStream(stream);
            int arrayKVRefSize = WritableUtils.readVInt(input);
            for (int i = 0; i < arrayKVRefSize; i++) {
                KeyValueColumnExpression kvExp = new KeyValueColumnExpression();
                kvExp.readFields(input);
                arrayKVRefs.add(kvExp);
            }
            int arrayKVFuncSize = WritableUtils.readVInt(input);
            Expression[] arrayFuncRefs = new Expression[arrayKVFuncSize];
            for (int i = 0; i < arrayKVFuncSize; i++) {
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Related Classes of org.apache.phoenix.expression.KeyValueColumnExpression

  • org.apache.hadoop.hbase.KeyValue
  • org.apache.phoenix.coprocessor.ScanRegionObserver
  • org.apache.phoenix.iterate.AggregateResultScannerTest
  • org.apache.phoenix.schema.ColumnRef
  • org.apache.phoenix.util.IndexUtil
  • org.apache.phoenix.util.TestUtil
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