ConfigParams (Blazegraph Database Platform 2.1.5 API)

```
public interface ConfigParams
```
Interface declaring the config-params understood by the BigdataRDFServletContextListener.
Note: When used in a jini/River configuration, the name of the component for those configuration options is the fully qualified class name for the NanoSparqlServer.

See Also:
Change web.xml parameter names to be consistent with Jini/River

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BLUEPRINTS_SERVLET_PROVIDER` A class that implements the `BlueprintsServletProxy`.
`static String`	`CREATE` When `true`, an instance of the specified `NAMESPACE` will be created if none exists.
`static String`	`DEFAULT_BLUEPRINTS_SERVLET_PROVIDER`
`static boolean`	`DEFAULT_CREATE`
`static boolean`	`DEFAULT_DESCRIBE_EACH_NAMED_GRAPH`
`static String`	`DEFAULT_MAPGRAPH_SERVLET_PROVIDER`
`static String`	`DEFAULT_NAMESPACE`
`static int`	`DEFAULT_QUERY_THREAD_POOL_SIZE`
`static long`	`DEFAULT_QUERY_TIMEOUT`
`static boolean`	`DEFAULT_READ_ONLY`
`static String`	`DEFAULT_WARMUP_NAMESPACE_LIST`
`static int`	`DEFAULT_WARMUP_THREAD_POOL_SIZE`
`static long`	`DEFAULT_WARMUP_TIMEOUT`
`static String`	`DESCRIBE_EACH_NAMED_GRAPH` When `true` and the KB instance is in the `quads` mode, each named graph will also be described in in the same level of detail as the default graph (default false).
`static String`	`EXECUTOR_SERVICE_MAX_THREADS` Executor service thread limit.
`static String`	`FORCE_OVERFLOW` Force a compacting merge of all shards on all data services in a bigdata federation (optional, default `false`).
`static String`	`MAPGRAPH_SERVLET_PROVIDER` A class that implements the `MapgraphServletProxy`.
`static String`	`NAMESPACE` The default bigdata namespace of for the triple or quad store instance to be exposed (default `DEFAULT_NAMESPACE`).
`static String`	`PROPERTY_FILE` The property file (for a standalone bigdata instance) or the jini configuration file (for a bigdata federation).
`static String`	`QUERY_THREAD_POOL_SIZE` The size of the thread pool used to service SPARQL queries -OR- ZERO (0) for an unbounded thread pool (default 16).
`static String`	`QUERY_TIMEOUT` When non-zero, this specifies the timeout (milliseconds) for a query.
`static String`	`READ_LOCK` The commit time against which the server will assert a read lock by holding open a read-only transaction against that commit point (optional).
`static String`	`READ_ONLY` When `true`, requests will be refused for mutation operations on the database made through the REST API.
`static String`	`SERVICE_WHITELIST` List of the services this instance is allowed to call out to.
`static String`	`WARMUP_NAMESPACE_LIST` A comma delimited list of namespaces to be processed during the warmup procedure (optional).
`static String`	`WARMUP_THREAD_POOL_SIZE` The size of the thread pool used to warmup the journal (default 20).
`static String`	`WARMUP_TIMEOUT` When non-zero, this specifies the timeout (milliseconds) for a warmup period when the NSS starts up (warmup is disabled when this is ZERO).

- Field Detail
  - PROPERTY_FILE
```
static final String PROPERTY_FILE
```
    The property file (for a standalone bigdata instance) or the jini configuration file (for a bigdata federation). The file must end with either ".properties" or ".config". This parameter is ignored if the IIndexManager is specified as an attribute of the web application context.
    
    See Also:
    Constant Field Values
  - NAMESPACE
```
static final String NAMESPACE
```
    The default bigdata namespace of for the triple or quad store instance to be exposed (default DEFAULT_NAMESPACE). Note that there can be many triple or quad store instances within a bigdata instance.
    
    See Also:
    Constant Field Values
  - DEFAULT_NAMESPACE
```
static final String DEFAULT_NAMESPACE
```
    See Also:
    Constant Field Values
  - CREATE
```
static final String CREATE
```
    When true, an instance of the specified NAMESPACE will be created if none exists.
    
    See Also:
    Constant Field Values
  - DEFAULT_CREATE
```
static final boolean DEFAULT_CREATE
```
    See Also:
    Constant Field Values
  - QUERY_THREAD_POOL_SIZE
```
static final String QUERY_THREAD_POOL_SIZE
```
    The size of the thread pool used to service SPARQL queries -OR- ZERO (0) for an unbounded thread pool (default 16).
    
    See Also:
    Constant Field Values
  - DEFAULT_QUERY_THREAD_POOL_SIZE
```
static final int DEFAULT_QUERY_THREAD_POOL_SIZE
```
    See Also:
    Constant Field Values
  - FORCE_OVERFLOW
```
static final String FORCE_OVERFLOW
```
    Force a compacting merge of all shards on all data services in a bigdata federation (optional, default false). This option should only be used for benchmarking purposes.
    
    See Also:
    Constant Field Values
  - READ_LOCK
```
static final String READ_LOCK
```
    The commit time against which the server will assert a read lock by holding open a read-only transaction against that commit point (optional). When given, queries will default to read against this commit point. Otherwise queries will default to read against the most recent commit point on the database. Regardless, each query will be issued against a read-only transaction.
    
    See Also:
    Constant Field Values
  - DESCRIBE_EACH_NAMED_GRAPH
```
static final String DESCRIBE_EACH_NAMED_GRAPH
```
    When true and the KB instance is in the quads mode, each named graph will also be described in in the same level of detail as the default graph (default false). Otherwise only the default graph will be described.
    Note: I have changed the default to false since this operation can be long-running for messy web graphs such as the TBL six degrees of freedom crawl. We wind up with one named graph for each "friend", which is a lot of named graphs, plus there are a lot of predicates that show up in web data. Together, this makes the per-named graph response not a very good default. However, you can certainly enable this if you only have a reasonable number of named graphs and/or only expose the SPARQL end point to a limited audience.
    
    See Also:
    Constant Field Values
  - DEFAULT_DESCRIBE_EACH_NAMED_GRAPH
```
static final boolean DEFAULT_DESCRIBE_EACH_NAMED_GRAPH
```
    See Also:
    Constant Field Values
  - READ_ONLY
```
static final String READ_ONLY
```
    When true, requests will be refused for mutation operations on the database made through the REST API. This may be used to help lock down a public facing interface.
    
    See Also:
    Constant Field Values
  - DEFAULT_READ_ONLY
```
static final boolean DEFAULT_READ_ONLY
```
    See Also:
    Constant Field Values
  - QUERY_TIMEOUT
```
static final String QUERY_TIMEOUT
```
    When non-zero, this specifies the timeout (milliseconds) for a query. This may be used to limit resource consumption on a public facing interface.
    
    See Also:
    Constant Field Values
  - DEFAULT_QUERY_TIMEOUT
```
static final long DEFAULT_QUERY_TIMEOUT
```
    See Also:
    Constant Field Values
  - WARMUP_TIMEOUT
```
static final String WARMUP_TIMEOUT
```
    When non-zero, this specifies the timeout (milliseconds) for a warmup period when the NSS starts up (warmup is disabled when this is ZERO).
    
    See Also:
    pre-heat the journal on startup , Constant Field Values
  - DEFAULT_WARMUP_TIMEOUT
```
static final long DEFAULT_WARMUP_TIMEOUT
```
    See Also:
    Constant Field Values
  - WARMUP_THREAD_POOL_SIZE
```
static final String WARMUP_THREAD_POOL_SIZE
```
    The size of the thread pool used to warmup the journal (default 20).
    
    See Also:
    pre-heat the journal on startup , Constant Field Values
  - DEFAULT_WARMUP_THREAD_POOL_SIZE
```
static final int DEFAULT_WARMUP_THREAD_POOL_SIZE
```
    See Also:
    Constant Field Values
  - WARMUP_NAMESPACE_LIST
```
static final String WARMUP_NAMESPACE_LIST
```
    A comma delimited list of namespaces to be processed during the warmup procedure (optional). When not specified, ALL namespaces will be processed.
    
    See Also:
    pre-heat the journal on startup , Constant Field Values
  - DEFAULT_WARMUP_NAMESPACE_LIST
```
static final String DEFAULT_WARMUP_NAMESPACE_LIST
```
    See Also:
    Constant Field Values
  - BLUEPRINTS_SERVLET_PROVIDER
```
static final String BLUEPRINTS_SERVLET_PROVIDER
```
    A class that implements the BlueprintsServletProxy.
    
    See Also:
    Refactor Blueprints , Constant Field Values
  - DEFAULT_BLUEPRINTS_SERVLET_PROVIDER
```
static final String DEFAULT_BLUEPRINTS_SERVLET_PROVIDER
```
  - MAPGRAPH_SERVLET_PROVIDER
```
static final String MAPGRAPH_SERVLET_PROVIDER
```
    A class that implements the MapgraphServletProxy.
    
    See Also:
    Constant Field Values
  - DEFAULT_MAPGRAPH_SERVLET_PROVIDER
```
static final String DEFAULT_MAPGRAPH_SERVLET_PROVIDER
```
  - SERVICE_WHITELIST
```
static final String SERVICE_WHITELIST
```
    List of the services this instance is allowed to call out to.
    
    See Also:
    Constant Field Values
  - EXECUTOR_SERVICE_MAX_THREADS
```
static final String EXECUTOR_SERVICE_MAX_THREADS
```
    Executor service thread limit. This is a soft boundary - actual pool will be unlimited, but new queries would not be launched if the pool has more active threads than this.
    
    See Also:
    Constant Field Values

Interface ConfigParams

Field Summary

Field Detail

PROPERTY_FILE

NAMESPACE

DEFAULT_NAMESPACE

CREATE

DEFAULT_CREATE

QUERY_THREAD_POOL_SIZE

DEFAULT_QUERY_THREAD_POOL_SIZE

FORCE_OVERFLOW

READ_LOCK

DESCRIBE_EACH_NAMED_GRAPH

DEFAULT_DESCRIBE_EACH_NAMED_GRAPH

READ_ONLY

DEFAULT_READ_ONLY

QUERY_TIMEOUT

DEFAULT_QUERY_TIMEOUT

WARMUP_TIMEOUT

DEFAULT_WARMUP_TIMEOUT

WARMUP_THREAD_POOL_SIZE

DEFAULT_WARMUP_THREAD_POOL_SIZE

WARMUP_NAMESPACE_LIST

DEFAULT_WARMUP_NAMESPACE_LIST

BLUEPRINTS_SERVLET_PROVIDER

DEFAULT_BLUEPRINTS_SERVLET_PROVIDER

MAPGRAPH_SERVLET_PROVIDER

DEFAULT_MAPGRAPH_SERVLET_PROVIDER

SERVICE_WHITELIST

EXECUTOR_SERVICE_MAX_THREADS