com.chemaxon.overlap

Class ContextJsTools

java.lang.Object

com.chemaxon.overlap.ContextJsTools

public final class ContextJsTools
extends Object

Utility methods for JS based OAContext creation.

Method Summary

Modifier and Type	Method and Description
static OverlapAnalysisContext	evalJs(OverlapAnalysisContext ctx, String js) Evaluate JavaScript segment for creation of OverlapAnalysisContextFactory.
static String	getHelpMessage() Get context initialization help message.
static OverlapAnalysisContext	initializeContext(String context, String contextjs) Initialize a context from optional name and JS hook.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

evalJs

public static OverlapAnalysisContext evalJs(OverlapAnalysisContext ctx,
                                            String js)
                                     throws ScriptException

Evaluate JavaScript segment for creation of OverlapAnalysisContextFactory.

Parameters:

ctx - Already initialized context to be exposed for the scripting hook or null

js - JavaScript segment to evaluate; JS context in accordance with JSHELP. Must be not null.

Returns:

Initialized context

Throws:

ScriptException - re-thrown

IllegalArgumentException - when script returned null or anything different than an OverlapAnalysisContex instance

initializeContext

public static OverlapAnalysisContext initializeContext(String context,
                                                       String contextjs)
                                                throws ScriptException

Initialize a context from optional name and JS hook.

Overlap analysis contexts usually can be defined by their named factory methods or a JS hook. Additionally a JS hook can be used to customize a the context to be used.

Parameters:

context - Context name; value of command line parameter "-context" or null when not specified

contextjs - JS hook; value of command line parameter "-contextjs" or null when not specified. The last statement must be the context to be used.

Returns:

Conext to be used

Throws:

IllegalArgumentException - when none of the arguments specified

ScriptException - propagated from the ScriptEngine

getHelpMessage

public static String getHelpMessage()

Get context initialization help message.

Returns:

Help message to be displayed