JCoRepository (SAP BTP SDK for the Neo environment)

All Known Subinterfaces:

JCoCustomRepository
```
public interface JCoRepository
```
JCo metadata repositories are needed to get the technical description of functions and parameters used for fulfilling RFC calls. This interface covers the implementation of basic repository functionality such as caching and the persistence of metadata.
The JCoCustomRepository serves as a base interface for more elaborate repositories. To fetch the metadata at runtime from a back-end system use the JCoRepository instance returned by a JCoDestination.
Keep in mind, that the functions and parameter definitions are always the same inside of one cluster of SAP application server hosts, but can differ from other clusters.

See Also:
JCoCustomRepository

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`clear()` Clear allows to empty both the function template cache as well as the record metadata cache completely.
`String[]`	`getCachedClassMetaDataNames()` Returns the names of the cached classes as a string array.
`String[]`	`getCachedFunctionTemplateNames()` Returns the names of the cached functions as a string array.
`String[]`	`getCachedRecordMetaDataNames()` Returns the names of the cached structures as a string array.
`JCoClassMetaData`	`getClassMetaData(String className)` Returns the metadata for the passed class/interface name.
`JCoFunction`	`getFunction(String functionName)` Returns a JCoFunction with initial parameters for the passed function name.
`JCoListMetaData`	`getFunctionInterface(String functionName)` Returns the metadata for the passed function.
`JCoFunctionTemplate`	`getFunctionTemplate(String functionName)` Returns the template for the passed function.
`JCoRepositoryMonitor`	`getMonitor()` Returns a newly created or available monitor instance for the repository.
`String`	`getName()` Returns the repository name.
`JCoRecordMetaData`	`getRecordMetaData(String recordName)` Returns the metadata for the passed structure/table name.
`JCoRequest`	`getRequest(String functionName)` Returns a JCoRequest with initial parameters for the passed function name.
`JCoRecordMetaData`	`getStructureDefinition(String structureName)` Returns the metadata for the passed structure/table name.
`boolean`	`isUnicode()` Returns whether the repository contains both Unicode and non-Unicode metadata.
`void`	`load(Reader reader)` Loads the repository from the given reader.
`void`	`removeClassMetaDataFromCache(String className)` Removes a class metadata instance from the local cache.
`void`	`removeFunctionTemplateFromCache(String functionName)` Removes a function template from the local cache.
`void`	`removeRecordMetaDataFromCache(String recordName)` Removes a record metadata from the local cache.
`void`	`save(Writer writer)` Saves this repository using the given writer.

- Method Detail
  - getName
```
String getName()
```
    Returns the repository name.
    
    Returns:
    the name of the repository
  - getFunctionTemplate
```
JCoFunctionTemplate getFunctionTemplate(String functionName)
                                        throws JCoException
```
    Returns the template for the passed function.
    
    Parameters:
    functionName - the name of the function for which the template is being returned
    
    Returns:
    the template for the function or null if the function template could not be retrieved
    
    Throws:
    
    JCoException - if another error occurred during the retrieval of the function interface with the group field set appropriately
  - getFunction
```
JCoFunction getFunction(String functionName)
                        throws JCoException
```
    Returns a JCoFunction with initial parameters for the passed function name.
    
    Parameters:
    functionName - the name of the function for which the JCoFunction is being returned.
    
    Returns:
    the JCoFunction for the function name or null if the underlying function template could not be retrieved.
    
    Throws:
    
    JCoException - if another error occurred during the retrieval of the function interface with the group field set appropriately
  - getRequest
```
JCoRequest getRequest(String functionName)
                      throws JCoException
```
    Returns a JCoRequest with initial parameters for the passed function name.
    
    Parameters:
    functionName - the name of the function for which the request is being returned.
    
    Returns:
    the request for the function name or null if the underlying function template could not be retrieved.
    
    Throws:
    
    JCoException - if another error occurred during the retrieval of the function interface with the group field set appropriately
  - getFunctionInterface
```
JCoListMetaData getFunctionInterface(String functionName)
                                     throws JCoException
```
    Returns the metadata for the passed function.
    
    Parameters:
    functionName - the name of the function for which the metadata is being returned
    
    Returns:
    the metadata for the function or null if the function couldn't be found
    
    Throws:
    
    JCoException - if an error occurred during the retrieval of the function interface
  - getRecordMetaData
```
JCoRecordMetaData getRecordMetaData(String recordName)
                                    throws JCoException
```
    Returns the metadata for the passed structure/table name.
    
    Parameters:
    recordName - the name of the structure or table for which the metadata is being returned
    
    Returns:
    the metadata for the given name or null if the structure couldn't be found
    
    Throws:
    
    JCoException - if an error occurred during the retrieval of the data structure definition
  - getStructureDefinition
```
JCoRecordMetaData getStructureDefinition(String structureName)
                                         throws JCoException
```
    Returns the metadata for the passed structure/table name.
    
    Parameters:
    structureName - the name of the structure or table for which the metadata is being returned
    
    Returns:
    the metadata for the given name or null if the structure couldn't be found
    
    Throws:
    
    JCoException - if an error occurred during the retrieval of the data structure definition
  - getClassMetaData
```
JCoClassMetaData getClassMetaData(String className)
                                  throws JCoException
```
    Returns the metadata for the passed class/interface name.
    
    Parameters:
    className - the name of the class or interface for which the metadata is being returned
    
    Returns:
    the metadata for the given name or null if the class couldn't be found
    
    Throws:
    
    JCoException - if an error occurred during the retrieval of the class metadata definition
  - removeFunctionTemplateFromCache
```
void removeFunctionTemplateFromCache(String functionName)
```
    Removes a function template from the local cache.
    
    Parameters:
    functionName - the name of the function to be removed from the cache
  - removeRecordMetaDataFromCache
```
void removeRecordMetaDataFromCache(String recordName)
```
    Removes a record metadata from the local cache.
    
    Parameters:
    recordName - the name of the structure to be removed from the cache
  - removeClassMetaDataFromCache
```
void removeClassMetaDataFromCache(String className)
```
    Removes a class metadata instance from the local cache.
    
    Parameters:
    className - the name of the class to be removed from the cache
  - getCachedFunctionTemplateNames
```
String[] getCachedFunctionTemplateNames()
```
    Returns the names of the cached functions as a string array.
    
    Returns:
    a string array of the cached functions (length 0 if the cache is empty)
  - getCachedRecordMetaDataNames
```
String[] getCachedRecordMetaDataNames()
```
    Returns the names of the cached structures as a string array.
    
    Returns:
    a string array of the cached structures (length 0 if the cache is empty)
  - getCachedClassMetaDataNames
```
String[] getCachedClassMetaDataNames()
```
    Returns the names of the cached classes as a string array.
    
    Returns:
    a string array of the cached classes (length 0 if the cache is empty)
  - isUnicode
```
boolean isUnicode()
```
    Returns whether the repository contains both Unicode and non-Unicode metadata.
    Repositories containing metadata for SAP systems running on non-Unicode codepages cannot contain metadata for unicode structures.
    
    Returns:
    true, if the repository contains the metadata for Unicode representation of the contained metadata, false otherwise
  - clear
```
void clear()
```
    Clear allows to empty both the function template cache as well as the record metadata cache completely.
    All metadata will be looked up again in the original source, which is generally much more expensive than looking it up in the cache. Therefore use this method carefully and avoid it in application code.
  - getMonitor
```
JCoRepositoryMonitor getMonitor()
```
    Returns a newly created or available monitor instance for the repository.
    
    Returns:
    JCoRepositoryMonitor instance
  - load
```
void load(Reader reader)
          throws IOException
```
    Loads the repository from the given reader.
    Note that the existing cache is cleared completely before reading. That is, after successful completion of the load operation this repository's cache contains only the metadata read. In case of an error the cache will be empty.
    This method does not close the given reader. Obsolete trailing characters are ignored and remain available for further reading.
    
    Parameters:
    reader - the reader to be used for loading this repository
    
    Throws:
    
    IOException - if an I/O error occurs
    
    JCoRuntimeException - with key JCO_ERROR_REPOSITORY_SERIALIZATION if the data read is syntactically or semantically incorrect
    Since:
    
    3.0.10
  - save
```
void save(Writer writer)
          throws IOException
```
    Saves this repository using the given writer.
    This method does not close the given writer.
    
    Parameters:
    writer - the writer used to save this repository
    
    Throws:
    
    IOException - if an I/O error occurs
    Since:
    
    3.0.10

Interface JCoRepository

Method Summary

Method Detail

getName

getFunctionTemplate

getFunction

getRequest

getFunctionInterface

getRecordMetaData

getStructureDefinition

getClassMetaData

removeFunctionTemplateFromCache

removeRecordMetaDataFromCache

removeClassMetaDataFromCache

getCachedFunctionTemplateNames

getCachedRecordMetaDataNames

getCachedClassMetaDataNames

isUnicode

clear

getMonitor

load

save