CN102073663B - A Method and Device for Quickly Processing XML Compressed Data - Google Patents

Abstract

The invention provides a method and connector for rapidly reading XML (Extensible Markup Language) compressed data. XML compressed data are converted into hybrid data type objects to generate a message sequence including the hybrid data type objects, wherein the hybrid data type adopts a mode of data type marks and data storage part. Correspondingly, the invention provides a method and device for rapidly processing the XML compressed data. The method comprises the steps of: generating a message sequence comprising the hybrid data type objects through converting the XML compressed data into the hybrid data type objects; searching corresponding data processing logic according to the read hybrid data type objects in the message sequence and converting hybrid data, and transmitting the converted data to the searched data processing logic. Through the hybrid data types and the flow read interface, for the XML structure information and some types of data, the read original compressed data are directly transmitted, thus the operation consumption and the storage consumption caused by character string operation are saved.

Description

A Method and Device for Quickly Processing XML Compressed Data

technical field

The invention relates to the field of XML data processing, in particular to a method and device for rapidly processing XML compressed data.

Background technique

Among the existing XML data compression methods, there are many compression methods based on XML structure and data characteristics processing methods, such as XGRIND, XPRESS and so on. In these methods, on the one hand, avoid using the original XML container to represent the structure, and directly save the XML structure information in the compressed data, so as to realize the direct query of the compressed data; Types or data with similar characteristics are compressed together to achieve a higher data compression ratio. When reading information from this kind of compressed data that separates the structure and data, the usual practice is to first decompress the original XML data, and then use the known XML parsing method to parse. For related content, please refer to the patent number US 7,013,425B2 The US patent "Data processing method, and encoder, decoder and xml parser for encoding and decoding an xml document" and the US patent application with publication number US 2004/0225754A1 "Method of compressing xml data and method of decompressing compressed xmldata".

For example, in the XGRIND compression method, different compression methods are adopted for metadata representing XML structures (in the form of XML tags and attributes), enumerated attribute values, and general element/attribute values. Specifically, for metadata, each start tag is encoded with a character "T" plus a uniquely assigned element ID, all end tags are encoded with a character "/", and attribute names are encoded with a character "A" plus A uniquely assigned attribute ID encoding; for enumerated attribute values, use dictionary encoding; for general element/attribute values, use Huffman encoding (see http://dsl.serc.iisc.ernet.in/pub /xgrindicde02.pdf ). When reading the structural information in XGRIND compressed data according to the existing method, the program first needs to read the characters and numbers representing the XML structural information, and convert them into string representations of start tags, end tags or attribute names in a certain way, Then, the XML data in the form of a character string is parsed by using a known XML parsing method, so as to analyze the XML structure information. When reading the XML data, it is first decompressed into a string representation, and then the XML data represented by the string is parsed. During the entire reading process, the additional computer resource consumption includes the operation consumption of processing the XML structure information and XML data into a character string conforming to the XML form during the decompression process, and after decompression, the additional computer resource consumption includes The storage consumption of XML data, the operation consumption of string comparison and search in the XML parsing method, and the operation consumption of parsing XML data in the form of strings. The consumption of these computer resources has caused the reduction of program operating efficiency.

For another example, in the XPRESS compression method, different compression methods are adopted for tags and different types of data values. Specifically, for tag compression, the path of elements is encoded as a certain interval in [0.0, 1.0], and the path expression is estimated using the containment relationship between these intervals. For the compression of data values, specifically, for digital data values, differential encoding is used for integers, and f32 encoding is used for floating point numbers; for string data values, dictionary encoding is used for enumeration types, and Huffman encoding is used for text data Coding (see http://islab.kaist.ac.kr/chungcw/InterConfPapers/sigmod2003_jkmin.pdf ) . When reading XPRESS compressed data according to the existing method, in addition to the above-mentioned problems, there is also a problem about the data of the floating point type. Specifically, as mentioned above, in XPRESS, XML data of type xsd:float is encoded with f32, and its data representation is the same as that of IEEE single-precision floating-point numbers, and it is recorded as 4 bytes in the compressed data . When reading this type of data according to the existing method, because the XML Schema specification stipulates that the data of type xsd:float must be expressed in decimal form, the decompression process of XML data involves the representation from IEEE single-precision floating-point number to the decimal system of floating-point number The conversion of string representation requires multiple floating-point number multiplication and floating-point addition operations; inside the application, the XML data generally corresponds to a floating-point number in the computer. In most computer systems, floating-point numbers The representation of the type value is the IEEE single-precision floating-point number representation. Therefore, the XML data parsing process involves converting the decimal string of the floating-point number into the IEEE single-precision floating-point number representation, which also requires multiple floating-point number multiplications and floating-point numbers. Addition operation. It can be seen that there are two redundant data representation conversions in the whole process, and for common computer architectures, the overhead of floating-point operations is relatively large.

For another example, in the US patent "System and method for schema-driven compression of extensible mark-uplanguage (XML) documents" with the patent number US 6,883,137B1, in the compression process, the input XML stream or DOM tree is first divided into structures There are two sub-streams of stream and data stream. Then, the structured stream is encoded into WBXML (WAP Binary XML) format, and the data stream is compressed using a traditional compression algorithm (eg, GZIP). In the process of reading compressed data, decode the coded structure stream, generate SAX events or build a DOM tree according to SAX analysis method or DOM analysis method to obtain XML structure information; decompress the compressed data stream to obtain XML data. In this method, the structured stream is encoded into a binary format without being converted into a string representation, and the structured stream in binary format is directly parsed into a SAX message sequence or a DOM tree structure. In this way, XML structure information can be used directly without string parsing. However, this method uses a traditional compression algorithm to compress the data stream. When reading, it must be decompressed into a string representation and then parsed. Therefore, there is still computational consumption caused by first decompressing and then parsing.

Contents of the invention

In order to solve the above-mentioned shortcomings in the existing XML compressed data reading method, the present invention provides a method and device for quickly processing XML compressed data, so as to reduce computer resource consumption when reading XML compressed data and improve program operation efficiency.

In order to achieve the above object, the present invention provides a method for quickly reading XML compressed data, the method generates a message sequence containing a mixed data type object by converting the XML compressed data into a mixed data type object, wherein the mixed data type The XML structure information and XML data in the XML compressed data are expressed in the way of "data type tag + data storage part".

In the mixed data type, the data type mark represents various data types, and the data storage part stores data. Specifically, for digital data, the original compressed data is directly stored in the data storage part, and for character string data, in the data storage part A pointer to the address of the string in computer memory is stored in the storage section.

Correspondingly, a method for quickly processing XML compressed data is provided, the method comprising: generating a message sequence containing mixed data type objects by converting the XML compressed data into mixed data type objects; type object to find the corresponding data processing logic; convert the data in the object into the type required by the data processing logic according to the mixed type object in the read message sequence, and transmit the converted data to the data processing logic .

The searching step includes: searching for the corresponding data processing logic by comparing the numbers in the mixed data type objects in the message transmitting the tag name and the attribute name.

The conversion step includes: judging whether the data type in the message matches the data type required by the data processing logic through the mixed data type object in the message of the transmitted data; for the value that can be directly represented by the mixed data type, The required data is stored in the mixed data type object without conversion; for the value that the mixed data type cannot represent, the original string value is stored in the mixed data type object, and the string value is converted to the The data type required by the data processing logic.

Correspondingly, a streaming read interface for quickly reading XML compressed data is provided, the interface generates a message sequence containing mixed data type objects by converting the XML compressed data into mixed data type objects.

Correspondingly, a device for rapidly processing XML compressed data is provided, the device comprising: a streaming read interface, which generates a message sequence containing a mixed data type object by converting the XML compressed data into a mixed data type object; the message sequence The processing unit searches for the corresponding data processing logic according to the mixed data type object in the message sequence read from the streaming read interface, and converts the mixed data in the mixed data type object into the data required by the data processing logic, and pass the transformed data to this data processing logic,

The message sequence processing unit performs the following operations: find the corresponding data processing logic by comparing the numbers in the mixed data type objects in the message that transmits the tag name and the attribute name; Whether the data type in the message matches the data type required by the data processing logic; for values that can be directly represented by the mixed data type, the required data is stored in the mixed data type object without conversion; for mixed data For values that cannot be represented by the type, the original string value is stored in the mixed data type object, and the string value is converted to the data type required by the data processing logic.

The invention provides a streaming read interface for XML compressed data through the mixed data type. In the mixed data type representation, for XML structure information and certain types of data, the original compressed data read is directly passed, thus saving the conversion of XML structure data and XML data to string representation, and saving the conversion of string representation parsing, and also save the storage consumption of decompressed XML data. In the process of processing mixed data type message sequences, the comparison and search operations of character strings in the prior art can be realized only by numerical comparison. Through these methods, the occupation of computer resources caused by string operations is reduced.

Description of drawings

FIG. 1A is a schematic diagram showing an implementation structure of a mixed data type in C language according to the present invention;

Fig. 1B is a schematic diagram of several common data types using a mixed data type representation method;

FIG. 2A is a schematic flowchart of a method for reading XML compressed data according to the prior art;

Fig. 2B is the schematic diagram according to the XML SAX message sequence processing method of prior art;

FIG. 3A is a schematic flow chart of a method for reading XML compressed data streams according to the present invention;

FIG. 3B is a schematic flowchart of a method for processing mixed data type message sequences according to the present invention.

Detailed ways

The present invention is mainly applied to XML compressed data that separates and compresses XML structure and data. When extracting XML compressed data, decompress it first and then parse the computer resource consumption caused by string operations in the process of parsing, and improve the efficiency of program operation. The method and device for processing XML compressed data according to the present invention will be described in detail below with reference to the drawings and embodiments.

In the present invention, a mixed data type is defined, and the XML structure information and XML data in the XML compressed data are represented by means of "data type mark + data", and multiple types of data are directly transmitted between program interfaces, reducing characters String type usage. Specifically, in the mixed data type, the data type mark represents various data types, and the data storage part stores data, specifically, for digital data, its original compressed data is directly stored in the data storage part, and for character string data , storing a pointer to the address of the string in computer memory in the data storage section.

FIG. 1A is a schematic diagram showing an implementation structure of a mixed data type in C language according to the present invention. As shown in Figure 1A, the entire mixed-type data structure is divided into two parts: 101 is a data type mark with a length of 1 byte, which can distinguish up to 256 different data types; 102 is a data storage part, several different sizes Concrete data types share 8 bytes of storage space.

Figure 1B lists several common data types that use mixed data types, as shown in Figure 1B: integer data uses N as the data type mark, and the integer value occupies 4 bytes of the data storage part; another example is double precision Floating-point data uses D as the data type mark and occupies 8 bytes of the data storage part; for string data, since the length of the string is not fixed, the data storage part only stores a 4-byte (32-bit operation) System) or 8-byte (64-bit operating system) pointer, pointing to the string data stored in another location in the computer memory.

It can be seen from FIG. 1A and FIG. 1B that the mixed data type is a piece of data with a fixed length in space, and it is faster to transfer a specific data type directly in time than to convert it into a character string first and then transfer it. Moreover, the mixed data types occupy very little computer resources when the program is running.

Using said mixed data type, the present invention provides a method for streaming XML compressed data, which converts XML compressed data into mixed data type objects, thereby generating a sequence of messages containing mixed data type objects.

The mixed data type message sequence is processed after the message sequence containing the mixed data type objects is read from the XML compressed data. Specifically include: according to the mixed data type object in the read message sequence, find the corresponding data processing logic, convert the mixed data into the data required by the corresponding data processing logic, and transmit the converted data to the data processing logic . In the process of searching, the corresponding data processing logic is found by comparing the numbers in the mixed data type objects in the message that transmits the tag name and attribute name, instead of comparing and searching strings as in the prior art, thus saving computer resource usage. In the conversion process, judge whether the data type in the message matches the data type required by the data processing logic through the mixed data type object in the message of the transmitted data. For the value that can be directly represented by the mixed data type, The required data is stored in the mixed data type object without conversion. For values that cannot be represented by the mixed data type, the original string value is stored in the mixed data type object, and the string is converted to the required data type. Conversion, thereby saving computer resources occupied by data type conversion operations.

Below, in order to describe the advantages of the present invention over the prior art in detail, an embodiment of the prior art is first described with reference to FIG. 2A and FIG. 2B , and then the XML compressed data processing method and its Improvements over existing technologies.

In Fig. 2A, 201, 202 are the tag name dictionary and the attribute name dictionary used by the XML compression method, using a number number corresponding to a tag name or attribute name in the original XML structure; 203 is the enumeration used by the XML compression method The enumerated value dictionary uses a number number corresponding to an enumeration value definition in XML; 204 is XML compressed data, and what is used in this embodiment is a compression format similar to XGrind, as shown in 204, T01 means that the number is 01 node, A01 represents the attribute numbered 01, and the subsequent data is the attribute value of string type; the value after A02 is a single-precision floating-point value directly written in the XML compressed file in the form of 4 bytes. Converted to a decimal floating-point number is 1234.99; similarly, T02 indicates the start of node number 02, E01 after A03 indicates the enumeration value of number 01, and the "/" in the next line indicates the end of node T02; string data after T03 It is the text data of the XML node, and the following two "/" respectively indicate the end of the node corresponding to T03 and T01.

Note that the XML compression method used in this embodiment does not compress the text data in the XML, and the method described in this embodiment is also applicable to the case where the text is compressed.

Step 205 is an XML decompression process, accepting 201, 202, 203, 204 as input data, and decompressing it into the XML data shown in 206. The specific process is:

Read T01 in 204, query the corresponding tag name according to 201, and convert it into a string "<Product>";

Read A01 in 204, query the corresponding attribute name according to 202, read the subsequent data, and convert it into a character string "Name="Some Product""; similarly, the following data in 204 is converted into a character string "Price="1234.99"", involves the conversion of single-precision floating-point value to decimal representation;

The conversion method of line T02 and line A01 in 204 is the same as line T01 and line A01;

Read A03 E01 in 204, query the corresponding attribute name according to 202, query the corresponding enumeration value according to 203, and then generate the string "Country="China"";

Read the / in 204 and convert it to the string "</Manufacturer>", because the T02 node only contains attribute values, so the end string of this node can also be omitted as "/>";

Read the data in line T03 and after in 204, and convert it into a node "<Detail s>Product introduction..." with text data;

The last two / in 204 correspond to the end of T03 and T01 nodes respectively, and are converted into "</Details>" and "</Product>".

Step 207 uses the existing XML SAX reading method to parse 206 into the SAX message sequence shown in 208. In 208, the values in all messages are transmitted in the form of character strings.

The processing method of the SAX message sequence in the prior art is shown in FIG. 2B .

Step 211 receives a SAX message, and assigns it to steps 212-214 for processing according to the message type; in steps 212, 213, and 214, string matching should be performed on tag names and attribute names to find the corresponding data processing logic; in step 215 , converting the value in the form of a string in 207 into the required data type, and then in step 216, the specific processing logic uses the converted data.

As can be seen from the description of Fig. 2A and Fig. 2B, the existing method for processing XML compressed data has the following deficiencies: the data format conversion in step 205, the computer resource occupation that character string operation brings; Occupation of resources; occupancy of computer resources for string comparison operations in 212, 213, and 214; occupancy of computer resources caused by transferring the string form to the required data type in 215.

In view of the deficiencies of the existing methods, the XML compressed data stream reading method of the present invention is described below with FIG. 3A and FIG. 3B , and the improvement of the present invention to the existing methods is analyzed.

FIG. 3A is a schematic flow chart of a method for streaming XML compressed data according to the present invention.

As shown in Figure 3A, input data only has the XML compressed data shown in 204, does not need the dictionary shown in 201,202 and 203; Output data 302 is similar to the SAX message sequence shown in 208 in Fig. 2 (existing method), However, the representation of the XML structure and value all adopts a mixed data type instead of the string form in 208.

Step 301 is the stream reading process of XML compressed data, directly read 204 as the message sequence shown in 302, the specific process is as follows:

T01 in 204 is directly converted into a startElement message, and the tag name is represented by a mixed data type object whose type is N and the value is 01; similarly, A01 in 204 and subsequent data are converted into an attribute message, and the attribute name Expressed as a mixed data type object whose type is N and whose value is 01, the attribute value is expressed as a mixed data type object whose type is S and whose value is the string "Some Product"; similarly, A02 in 204 and subsequent data conversion It is an attribute message, and its attribute value is expressed as a mixed data type object whose type is F and whose value is a single-precision floating-point number 0x449A5FAE. There is no need for data type conversion from floating-point numbers to strings; the enumeration value E01 in 204 is directly converted It is a mixed data type object whose type is E and a value of 01; the text data of the T03 node in 204 is converted into a mixed data type object whose type is S and whose value is the memory address of this segment character string in the computer; the last two characters in 204 One/converted into two endElement messages, and the tag name is also converted into a mixed data type representation.

It can be seen from the above that for the tag name and attribute name representing the XML structure information, it is not converted into a string representation, but converted into an integer type mixed data type object. In the integer type mixed data type object, the original compressed data is retained. That is the original digital number. In this way, the type of the structure information and the compressed structure information data are directly provided to the subsequent processing through the corresponding message, and the subsequent processing directly uses the XML structure information without parsing the XML string.

For basic data types in XML, such as integers, floating-point numbers, Boolean, dates, and other data types, as well as data types that have been specially processed by XML compression methods, such as enumeration types, after reading the compressed original data, no It is converted to a string representation, but directly converted to a mixed data type object. In the mixed data type object, the original compressed data is retained, that is, the original enumeration value is numbered. Subsequent processing does not go through string parsing, and directly uses the original data.

For string type data in XML, and non-predefined types that do not have special processing in the compression method, after reading the compressed original data, decompress it into a string representation, and convert it into a mixed data type, and the subsequent processing parses the characters by itself string data.

Fig. 3B is a schematic flowchart of a mixed data type message sequence processing method according to the present invention, as shown in Fig. 3B:

Step 311 receives a mixed data type message, and dispatches it to steps 312, 313, and 314 for processing according to the message type;

Since the tag names and attribute names in the message are expressed in digital form, steps 312, 313, and 314 are used to find the corresponding data processing logic by comparing the numbers in the mixed data type objects in the message that transmits the tag names and attribute names;

Step 315 judges whether the data type in the message matches the required data type through the mixed data type object in the message of the transmitted data. For the value that the mixed data type can directly represent, the value stored in the mixed data type For the data, this step does not do any processing, and the data is directly used in step 216; for the value that cannot be represented by the mixed data type, the original string value is stored in the mixed data type object, and the string value needs to be converted to all The data types required by the data processing logic;

The processing logic found in step 216 uses the transformed data.

It can be seen from the description of Fig. 3A and Fig. 3B that the improvement of the XML compressed data stream reading method of the present invention over the existing method lies in that: the data shown in 201, 202 and 203 are omitted; the data in step 205 is omitted Format conversion and string operation; omit the computer storage resource occupation of character string in 206; The character string comparison in steps 212, 213, 214 is improved to digital comparison, which saves computer resource occupation; for most data types, step 315 Comparing with step 215, the occupation of computer resources caused by data type conversion can be saved.

In addition, it can also be seen from the comparison of Fig. 3B and Fig. 2B that the mixed data type message sequence processing flow of the present invention is similar to the existing XML SAX message sequence processing flow, and the XML SAX message processing flow in the existing application program is easy to modify To use the XML streaming reading method of the present invention.

Correspondingly, the present invention provides a streaming reading interface. The stream reading interface converts XML compressed data into mixed data type objects to generate a message sequence containing mixed data type objects. The specific operation is the same as the stream reading method above, and its description is omitted.

Compared with the SAX interface in the known XML reading method, the improvement of the streaming reading interface for reading the XML structure information in the XML compressed data and XML data lies in: reading the structural information in the XML compressed data Afterwards, the type of the structural information and the compressed structural information data are directly provided to the user of the interface without being converted into a string representation, and the user of the interface directly uses the XML structural information without parsing the XML string; Basic data types in XML, such as integers, floating-point numbers, Boolean, dates, and other data types, as well as data types that have been specially processed by XML compression methods, such as enumeration types, after the program reads the compressed original data, it does not Converted to a string representation, but directly converted to a mixed data type, and provided to the user of the interface through the stream reading interface, the user of the interface directly uses the original data without string parsing; for XML String type data in , and non-predefined types that are not specially processed by the compression method. After the program reads the compressed original data, it decompresses it into a string representation and converts it into a mixed data type. Through the stream read The interface is provided to the user of the interface, and the user of the interface parses the string data by itself.

Accordingly, the present invention provides a device for rapidly processing XML compressed data. The device includes: a streaming read interface, which converts XML compressed data into a mixed data type object to generate a message sequence containing a mixed data type object; a message sequence processing unit, according to the message sequence read from the stream read interface. The mixed data type object, finds the corresponding data processing logic, converts the mixed data in the mixed data type object into the data required by the data processing logic, and transmits the converted data to the data processing logic. The operations of the stream reading interface and the message sequence processing unit are the same as the method steps described above with reference to FIG. 3A and FIG. 3B , and their descriptions are omitted.

It can be seen from the above description in conjunction with the embodiment that, compared with the existing method of reading XML compressed data, the XML structure information and certain types of data are directly transmitted through the mixed data type. The original compressed data saves the occupation of computer storage resources. Specifically in the following aspects:

Through the stream reading of the XML structure information, the conversion of the XML structure information to the string representation is saved, and the analysis of the XML structure information string by the XML parser is also saved; at the same time, the compressed structure information representation is generally Numerical type (number), the amount of calculation for numerical comparison is very small, which is conducive to the efficient implementation of XML parsers. This method can save computer time resource occupation when reading XML compressed data;

Through the stream reading of the XML compressed data, it is not necessary to first decompress it into an XML string representation, and the storage space occupied by the entire data reading process has nothing to do with the size of the XML data, saving the computer when reading the XML compressed data storage resource usage;

The described process of reading the basic data types in XML (for example, xsd:float type data in XPRESS) and the data types specially processed by the XML compression method saves the cost of multiple data representation conversions on computer resources. occupy;

The streaming reading method of the XML compressed data, its interface usage mode is similar to the SAX method in the known XML reading method, which can be easily compatible with the existing programs using the SAX parsing method; on this interface, it is convenient Realize DOM, XPath and other well-known XML reading method interfaces.

The present invention has been described above with reference to the embodiments. However, those skilled in the art should understand that the present invention is not limited to the disclosed embodiments, and any similar modification, replacement or deformation should be included in the protection scope of the present invention without departing from the basic principle of the present invention , The protection scope of the present invention is defined by the claims.

Claims (9)

1. a method that reads fast the XML packed data is characterized in that,

By being converted to the mixed data type object, the XML packed data produces the message sequence that comprises the mixed data type object,

Wherein, the mode of described mixed data type employing " data type mark+data store is divided " represents XML structural information and the XML data in the XML packed data; In described mixed data type, the data type mark represents various data types, and data store is divided the storage data.

2. method according to claim 1, it is characterized in that, for digital data, in data store is divided, directly store its original compression data, for string data, divide middle storage to point to the pointer of the address of this character string in calculator memory in data store.

3. the method for a fast processing XML packed data comprises:

By being converted to the mixed data type object, the XML packed data produces the message sequence that comprises the mixed data type object;

Search corresponding data process method according to the mixed data type object in the message sequence that reads;

According to the mixed type object in the message sequence that reads the data of this object are converted to the required data type of described data process method, and send the data of conversion to this data process method,

Wherein, the mode of described mixed data type employing " data type mark+data store is divided " represents XML structural information and the XML data in the XML packed data; In described mixed data type, the data type mark represents various data types, and data store is divided the storage data.

4. method according to claim 3, it is characterized in that, for digital data, in data store is divided, directly store its original compression data, for string data, divide middle storage to point to the pointer of the address of this character string in calculator memory in data store.

5. method according to claim 3 is characterized in that, described finding step comprises:

By the numeral in the mixed data type object in the message that compares Transport label name and attribute-name, search corresponding data process method.

6. method according to claim 3 is characterized in that, described switch process comprises:

Judge that by the mixed data type object in the message that transmits data whether the data type in this message is complementary with the required data type of described data process method;

For the value of mixed data type energy direct representation, what preserve in the mixed data type object is exactly required data, does not change;

For the value that mixed data type can not represent, being stored in the mixed data type object is original string value, and this string value is converted to the required data type of described data process method.

7. device that is used for fast processing XML packed data comprises:

The streaming fetch interface produces the message sequence that comprises the mixed data type object by the XML packed data is converted to the mixed data type object;

The message sequence processing unit, according to the mixed data type object the message sequence that reads from the streaming fetch interface, search corresponding data process method, blended data in this mixed data type object is converted to the required data of this data process method, and with the conversion data send this data process method to

Wherein, the mode of described mixed data type employing " data type mark+data store is divided " represents XML structural information and the XML data in the XML packed data; In described mixed data type, the data type mark represents various data types, and data store is divided the storage data.

8. device according to claim 7, it is characterized in that, for digital data, in data store is divided, directly store its original compression data, for string data, divide middle storage to point to the pointer of the address of this character string in calculator memory in data store.

9. device according to claim 7 is characterized in that, described message sequence processing unit is carried out following operation:

Relatively search corresponding data process method by the numeral in the mixed data type object in the message of Transport label name and attribute-name;

Judge that by the mixed data type object in the message that transmits data whether the data type in this message is complementary with the required data type of described data process method;

For the value of mixed data type energy direct representation, what preserve in the mixed data type object is exactly required data, does not change;

For the value that mixed data type can not represent, being stored in the mixed data type object is original string value, and this string value is converted to the required data type of described data process method.

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