ContextProperties (Java Application API for IBM Streams)

```
public interface ContextProperties
```
Properties that can be specified when submitting the topology to a context.

See Also:

StreamsContext.submit(com.ibm.streamsx.topology.Topology, java.util.Map), JobProperties

Field Summary

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`_SPLMM_OPTIONS`
`static java.lang.String`	`APP_DIR` Location of the generated application directory when creating a Streams application bundle.
`static java.lang.String`	`BUILD_SERVICE_URL` Set URL for remote build service.
`static java.lang.String`	`COMPILE_INSTALL_DIR` Override IBM Streams install directory for bundle compilation, defaults to $STREAMS_INSTALL.
`static java.lang.String`	`FORCE_REMOTE_BUILD` Flag to be supplied to force the compilation to occur on the build service associated with a Streaming Analytics service.
`static java.lang.String`	`KEEP_ARTIFACTS` Keep any intermediate artifacts.
`static java.lang.String`	`SC_OPTIONS` Options to be passed to IBM Streams sc command.
`static java.lang.String`	`SSL_VERIFY` Set SSL certification verification state.
`static java.lang.String`	`STREAMS_CONNECTION` Deprecated. Not supported. Use `STREAMS_INSTANCE`.
`static java.lang.String`	`STREAMS_INSTANCE` Instance connection to IBM Streams REST api to be used for submission.
`static java.lang.String`	`SUBMISSION_PARAMS` Submission parameters to be supplied to the topology when submitted for `DISTRIBUTED`, `STANDALONE` or `ANALYTIC_SERVICE` execution.
`static java.lang.String`	`TOOLKIT_DIR` Location of the generated toolkit root.
`static java.lang.String`	`TRACING_LEVEL` Trace level for a `StreamsContext.Type.DISTRIBUTED` or `StreamsContext.Type.STANDALONE` application.
`static java.lang.String`	`VMARGS` Java virtual machine arguments.

- Field Detail
  - APP_DIR
```
static final java.lang.String APP_DIR
```
    Location of the generated application directory when creating a Streams application bundle. If not supplied to the in the configuration passed into StreamsContext.submit(com.ibm.streamsx.topology.Topology, java.util.Map) then a unique location will be used, and placed into the configuration with this key. The value should be a String that is the absolute path of the application directory.
    
    See Also:
    
    Constant Field Values
  - TOOLKIT_DIR
```
static final java.lang.String TOOLKIT_DIR
```
    Location of the generated toolkit root. If not supplied to the in the configuration passed into StreamsContext.submit(com.ibm.streamsx.topology.Topology, java.util.Map) then a unique location will be used, and placed into the configuration with this key. The value should be a String that is the absolute path of the toolkit directory.
    
    See Also:
    
    Constant Field Values
  - VMARGS
```
static final java.lang.String VMARGS
```
    Java virtual machine arguments. These arguments are added to all invocations of Java virtual machines for the topology. For any SPL invoked operators the invocation must have been through methods in JavaPrimitive.
    Setting the classpath is not supported.
    For example, setting the maximum heap memory to 2GB:
```
 
    List<String> vmArgs = new ArrayList<>();
    vmArgs.add("-Xmx2048m");
    config.put(ContextProperties.VMARGS, vmArgs);
 
 
```
    Argument is a List<String>.
    See Also:
    
    Constant Field Values
  - KEEP_ARTIFACTS
```
static final java.lang.String KEEP_ARTIFACTS
```
    Keep any intermediate artifacts. By default intermediate artifacts are deleted after submission of a topology. For example when create an IBM Streams application bundle the intermediate SPL code and toolkit are deleted. Keeping the artifacts can aid in debugging. Argument is a Boolean.
    
    See Also:
    
    Constant Field Values
  - TRACING_LEVEL
```
static final java.lang.String TRACING_LEVEL
```
    Trace level for a StreamsContext.Type.DISTRIBUTED or StreamsContext.Type.STANDALONE application. Value is an instance of java.util.logging.Level including instances of com.ibm.streams.operator.logging.TraceLevel.
    
    See Also:
    
    Constant Field Values
  - COMPILE_INSTALL_DIR
```
static final java.lang.String COMPILE_INSTALL_DIR
```
    Override IBM Streams install directory for bundle compilation, defaults to $STREAMS_INSTALL. Argument is a String.
    
    See Also:
    
    Constant Field Values
  - SUBMISSION_PARAMS
```
static final java.lang.String SUBMISSION_PARAMS
```
    Submission parameters to be supplied to the topology when submitted for DISTRIBUTED, STANDALONE or ANALYTIC_SERVICE execution.
    The property value is a Map<String,Object> where the key is the parameter name and the value is the parameter value.
    e.g.,
```
 Supplier<Integer> topology.createSubmissionParameter("p1", 5);
 ...
 
 ContextProperties config = new HashMap<>();
 Map<String,Object> params = new HashMap<>();
 params.put("p1", 10);
 config.put(SUBMISSION_PARAMS, params);
 
 ... StreamsContextFactory.getStreamsContext(DISTRIBUTED)
              .submit(topology, config);
 
```
    See Topology.createSubmissionParameter(String, Class)
    See Also:
    
    Constant Field Values
  - FORCE_REMOTE_BUILD
```
static final java.lang.String FORCE_REMOTE_BUILD
```
    Flag to be supplied to force the compilation to occur on the build service associated with a Streaming Analytics service. Currently only be used in conjunction with the STREAMING_ANALYTICS_SERVICE context.
    Its values can be true and false. If true, it will force remote compilation when possible. If false (or unset), the parameter will have no impact.
    If the FORCE_REMOTE parameter is supplied with a value of true, the SERVICE_NAME and VCAP_SERVICES parameters must also supplied. Otherwise, an error will be thrown.
    
    See Also:
    
    Constant Field Values
  - STREAMS_CONNECTION
```
static final java.lang.String STREAMS_CONNECTION
```
    Deprecated. Not supported. Use STREAMS_INSTANCE.
    
    Ignored.
    
    Since:
    
    1.11
    
    See Also:
    
    STREAMS_INSTANCE, Constant Field Values
  - STREAMS_INSTANCE
```
static final java.lang.String STREAMS_INSTANCE
```
    Instance connection to IBM Streams REST api to be used for submission.
    Only supported for distributed.
    The value in the configuration map must be an instance of Instance obtained from Instance.of_endpoint() and will be used for job submission.
    
    Since:
    
    1.13
    
    See Also:
    
    Constant Field Values
  - BUILD_SERVICE_URL
```
static final java.lang.String BUILD_SERVICE_URL
```
    Set URL for remote build service. For Cloud Pak for Data standalone configurations the build service used for remote builds is given by this URL. This is ignored by other contexts or configurations.
    
    Since:
    
    1.13
    
    See Also:
    
    Constant Field Values
  - SSL_VERIFY
```
static final java.lang.String SSL_VERIFY
```
    Set SSL certification verification state. If set as true (the default) then SSL certificate verification is enabled when using a REST connection to a IBM Streams distributed instance.
    Otherwise if set to false then SSL certification verification does not occur. This is useful for test distributed instances or the IBM Streams Quick Start edition where a self-signed certificate is used. If an Instance is passed in to a submission context using STREAMS_INSTANCE then this value is ignored.
    
    Since:
    
    1.11
    
    See Also:
    
    Constant Field Values
  - SC_OPTIONS
```
static final java.lang.String SC_OPTIONS
```
    Options to be passed to IBM Streams sc command.
    A topology is compiled into a Streams application bundle (sab) using the SPL compiler sc.
    Additional options to be passed to sc may be set using this key. The value can be a single string option (e.g. --c++std=c++11 to select C++ 11 compilation) or a list of strings for multiple options.
    Options that modify the requested submission context (e.g. setting a different main composite) or deprecated options should not be specified.
    
    Since:
    
    1.12.10
    
    See Also:
    
    https://www.ibm.com/support/knowledgecenter/en/SSCRJU_4.3.0/com.ibm.streams.ref.doc/doc/sc.html, Constant Field Values
  - _SPLMM_OPTIONS
```
static final java.lang.String _SPLMM_OPTIONS
```
    See Also:
    
    Constant Field Values

APP_DIR

TOOLKIT_DIR

VMARGS

KEEP_ARTIFACTS

TRACING_LEVEL

COMPILE_INSTALL_DIR

SUBMISSION_PARAMS

FORCE_REMOTE_BUILD

STREAMS_CONNECTION

STREAMS_INSTANCE

BUILD_SERVICE_URL

SSL_VERIFY

SC_OPTIONS

_SPLMM_OPTIONS