Examples of org.apache.pig.impl.util.UDFContext$UDFContextKey

org.apache.pig.impl.util.UDFContext
Class that acts as key for hashmap in UDFContext, it holds the class and args of the udf, and implements equals() and hashCode()

    }


    /** retrieve where clause for partition filter */
    private String getWhereClauseForPartitionFilter()
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(AbstractCassandraStorage.class);
        return property.getProperty(PARTITION_FILTER_SIGNATURE);
    }

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        return schema;
    }


    public void setPartitionFilter(Expression partitionFilter) throws IOException
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(AbstractCassandraStorage.class);
        property.setProperty(PARTITION_FILTER_SIGNATURE, partitionFilterToWhereClauseString(partitionFilter));
    }

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    }


    /** retrieve where clause for partition filter */
    private String getWhereClauseForPartitionFilter()
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(AbstractCassandraStorage.class);
        return property.getProperty(PARTITION_FILTER_SIGNATURE);
    }

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           pair.set(position, value);
    }


    private CfDef getCfDef(String signature)
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(CassandraStorage.class);
        return cfdefFromString(property.getProperty(signature));
    }

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        return cfdefFromString(property.getProperty(signature));
    }


    private List<IndexExpression> getIndexExpressions()
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(CassandraStorage.class);
        if (property.getProperty(PARTITION_FILTER_SIGNATURE) != null)
            return indexExpressionsFromString(property.getProperty(PARTITION_FILTER_SIGNATURE));
        else
            return null;
    }

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        return partitionKeys;
    }


    public void setPartitionFilter(Expression partitionFilter)
    {
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(CassandraStorage.class);
        property.setProperty(PARTITION_FILTER_SIGNATURE, indexExpressionsToString(filterToIndexExpressions(partitionFilter)));
    }

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    public void setPartitionFilter(Expression partitionFilter) throws IOException {
     // not implemented
    }
 
    private void storeInUDFContext(final String signature,final String key,final String value) {
        final UDFContext udfContext = UDFContext.getUDFContext();
        final Properties props = udfContext.getUDFProperties(this.getClass(), new String[]{signature});
        props.put(key, value);
    }

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        final Properties props = udfContext.getUDFProperties(this.getClass(), new String[]{signature});
        props.put(key, value);
    }
    
    private String getValueFromUDFContext(final String signature,final String key) {
        final UDFContext udfContext = UDFContext.getUDFContext();
        final Properties props = udfContext.getUDFProperties(this.getClass(), new String[]{signature});
        return props.getProperty(key);
    }

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     * Append newly specified schema 
     */
    @Override
    public void checkSchema(ResourceSchema s) throws IOException {
        AvroStorageLog.funcCall("Check schema");
        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(ResourceSchema.class);
        String prevSchemaStr = property.getProperty(AVRO_OUTPUT_SCHEMA_PROPERTY);
        AvroStorageLog.details("Previously defined schemas=" + prevSchemaStr);


        String key = getSchemaKey();
        Map<String, String> schemaMap = (prevSchemaStr != null)

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    @SuppressWarnings("rawtypes")
    @Override
    public OutputFormat getOutputFormat() throws IOException {
        AvroStorageLog.funcCall("getOutputFormat");


        UDFContext context = UDFContext.getUDFContext();
        Properties property = context.getUDFProperties(ResourceSchema.class);
        String allSchemaStr = property.getProperty(AVRO_OUTPUT_SCHEMA_PROPERTY);
        Map<String, String> map = (allSchemaStr != null)  ? parseSchemaMap(allSchemaStr) : null;


        String key = getSchemaKey();
        Schema schema = (map == null || !map.containsKey(key))  ? outputAvroSchema  : Schema.parse(map.get(key));

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