org.drools.compiler.compiler

Class JavaConfiguration

java.lang.Object

org.drools.compiler.compiler.JavaConfiguration

All Implemented Interfaces:

DialectConfiguration

public class JavaConfiguration
extends Object
implements DialectConfiguration

There are options to use various flavours of runtime compilers. Apache JCI is used as the interface to all the runtime compilers. You can also use the system property "drools.compiler" to set the desired compiler. The valid values are "ECLIPSE" and "JANINO" only. drools.dialect.java.compiler = drools.dialect.java.compiler.lnglevel = <1.5|1.6> The default compiler is Eclipse and the default lngLevel is 1.5. The lngLevel will attempt to autodiscover your system using the system property "java.version" The JavaDialectConfiguration will attempt to validate that the specified compiler is in the classpath, using ClassLoader.loadClass(String). If you intented to just Janino sa the compiler you must either overload the compiler property before instantiating this class or the PackageBuilder, or make sure Eclipse is in the classpath, as Eclipse is the default.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JavaConfiguration.CompilerType
static class	JavaConfiguration.DummyDialect

Field Summary

Fields

Modifier and Type	Field and Description
static String	JAVA_COMPILER_PROPERTY
static String	JAVA_LANG_LEVEL_PROPERTY
protected static String[]	LANGUAGE_LEVELS
protected static org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor and Description
JavaConfiguration()

Method Summary

Modifier and Type	Method and Description
static String	findJavaVersion(org.kie.internal.utils.ChainedProperties chainedProperties)
JavaConfiguration.CompilerType	getCompiler()
String	getJavaLanguageLevel()
KnowledgeBuilderConfigurationImpl	getPackageBuilderConfiguration()
void	init(KnowledgeBuilderConfigurationImpl conf)
Dialect	newDialect(ClassLoader rootClassLoader, KnowledgeBuilderConfigurationImpl pkgConf, PackageRegistry pkgRegistry, org.drools.core.definitions.InternalKnowledgePackage pkg)
void	setCompiler(JavaConfiguration.CompilerType compiler) Set the compiler to be used when building the rules semantic code blocks.
void	setJavaLanguageLevel(String languageLevel) You cannot set language level below 1.5, as we need static imports, 1.5 is now the default.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final transient org.slf4j.Logger logger

JAVA_COMPILER_PROPERTY

public static final String JAVA_COMPILER_PROPERTY

See Also:

Constant Field Values

JAVA_LANG_LEVEL_PROPERTY

public static final String JAVA_LANG_LEVEL_PROPERTY

See Also:

Constant Field Values

LANGUAGE_LEVELS

protected static final String[] LANGUAGE_LEVELS

Constructor Detail

JavaConfiguration

public JavaConfiguration()

Method Detail

init

public void init(KnowledgeBuilderConfigurationImpl conf)

Specified by:

init in interface DialectConfiguration

findJavaVersion

public static String findJavaVersion(org.kie.internal.utils.ChainedProperties chainedProperties)

getPackageBuilderConfiguration

public KnowledgeBuilderConfigurationImpl getPackageBuilderConfiguration()

Specified by:

getPackageBuilderConfiguration in interface DialectConfiguration

newDialect

public Dialect newDialect(ClassLoader rootClassLoader,
                          KnowledgeBuilderConfigurationImpl pkgConf,
                          PackageRegistry pkgRegistry,
                          org.drools.core.definitions.InternalKnowledgePackage pkg)

Specified by:

newDialect in interface DialectConfiguration

getJavaLanguageLevel

public String getJavaLanguageLevel()

setJavaLanguageLevel

public void setJavaLanguageLevel(String languageLevel)

You cannot set language level below 1.5, as we need static imports, 1.5 is now the default.

Parameters:

languageLevel -

setCompiler

public void setCompiler(JavaConfiguration.CompilerType compiler)

Set the compiler to be used when building the rules semantic code blocks. This overrides the default, and even what was set as a system property.

getCompiler

public JavaConfiguration.CompilerType getCompiler()