oracle.jbo.script

Class ExprScriptEngineFactory

java.lang.Object

oracle.jbo.script.ExprScriptEngineFactory

All Implemented Interfaces:

javax.script.ScriptEngineFactory

Direct Known Subclasses:

ExprGroovyScriptEngineFactory, ExprNashornScriptEngineFactory, JIScriptEngineFactory

public abstract class ExprScriptEngineFactory
extends java.lang.Object
implements javax.script.ScriptEngineFactory

Since:

release specific (what release of product did this appear in)

Constructor Summary

Constructors

Constructor and Description
ExprScriptEngineFactory()

Method Summary

Modifier and Type	Method and Description
abstract long	getCacheHitCount() The number of hit on the engine's script cache.
abstract long	getCacheMissCount() The number of misses on the engine's script cache.
abstract long	getExecuteCount() The number of script executions that were performed by the engine.
java.lang.Object	getParameter(java.lang.String key)
abstract long	getParseCount() The number of script parses that were performed by the engine.
abstract java.util.List<java.lang.String>	getSubProgram(ExprDef exprDef) Returns a subprogram for the specified ExprDef.
int	getSubProgramOffset(ExprDef exprDef)
abstract java.util.List<CodeSourceImpl.MethodSource>	getSubPrograms(ExprCodeSource codeSource) An approximate inverse to #getSubprogram(ExprDef).
static java.util.List<java.lang.String>	readLines(java.lang.String text)

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.script.ScriptEngineFactory

getEngineName, getEngineVersion, getExtensions, getLanguageName, getLanguageVersion, getMethodCallSyntax, getMimeTypes, getNames, getOutputStatement, getProgram, getScriptEngine

Constructor Detail

ExprScriptEngineFactory

public ExprScriptEngineFactory()

Method Detail

readLines

@Concealed
public static java.util.List<java.lang.String> readLines(java.lang.String text)

For internal use only. Application developers should not use this

getParameter

public java.lang.Object getParameter(java.lang.String key)

Specified by:

getParameter in interface javax.script.ScriptEngineFactory

getParseCount

public abstract long getParseCount()

The number of script parses that were performed by the engine.

getExecuteCount

public abstract long getExecuteCount()

The number of script executions that were performed by the engine.

getCacheHitCount

public abstract long getCacheHitCount()

The number of hit on the engine's script cache. The engine holds a cache of parsed script instances. A hit count indicates that the evaluator was able to frequently reuse scripts that were parsed for an earlier expression execution.

getCacheMissCount

public abstract long getCacheMissCount()

The number of misses on the engine's script cache.

getSubProgram

public abstract java.util.List<java.lang.String> getSubProgram(ExprDef exprDef)
                                                        throws IllegalImportException

Returns a subprogram for the specified ExprDef. The subprogram may be included in an engine specific script that aggregates individual scripts.

The subprogram should define a fuction that is invokable within the context of a containing script.

Similar to ScriptEngineFactory.getProgram(String...).

Returns:

a List of statements that can be included as a function in an aggregate script.

Throws:

IllegalImportException

getSubProgramOffset

public int getSubProgramOffset(ExprDef exprDef)

getSubPrograms

public abstract java.util.List<CodeSourceImpl.MethodSource> getSubPrograms(ExprCodeSource codeSource)

An approximate inverse to #getSubprogram(ExprDef).

Returns:

a List of MethodSources representing the ExprDef subprograms that are present in the CodeSource.