org.drools.base.extractors
Class MVELClassFieldExtractor

java.lang.Object
  org.drools.base.BaseClassFieldExtractor
      org.drools.base.extractors.BaseObjectClassFieldExtractor
          org.drools.base.extractors.MVELClassFieldExtractor

All Implemented Interfaces:

java.io.Serializable, Extractor, FieldExtractor

public class MVELClassFieldExtractor
extends BaseObjectClassFieldExtractor

A class field extractor that uses MVEL engine to extract the actual value for a given expression. We use MVEL to resolve nested accessor expressions.

Author:

etirelli

See Also:

Serialized Form

Constructor Summary

MVELClassFieldExtractor(java.lang.Class clazz, java.lang.String fieldName, java.lang.ClassLoader classLoader)

Method Summary

java.lang.Object

getValue(InternalWorkingMemory workingMemory, java.lang.Object object)

Methods inherited from class org.drools.base.extractors.BaseObjectClassFieldExtractor

getBooleanValue, getByteValue, getCharValue, getDoubleValue, getFloatValue, getHashCode, getIntValue, getLongValue, getNativeReadMethod, getShortValue, isNullValue

Methods inherited from class org.drools.base.BaseClassFieldExtractor

equals, getExtractToClass, getExtractToClassName, getIndex, getValueType, hashCode, isGlobal

Methods inherited from class java.lang.Object

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

Constructor Detail

MVELClassFieldExtractor

public MVELClassFieldExtractor(java.lang.Class clazz,
                               java.lang.String fieldName,
                               java.lang.ClassLoader classLoader)

Method Detail

getValue

public java.lang.Object getValue(InternalWorkingMemory workingMemory,
                                 java.lang.Object object)

Specified by:

getValue in interface Extractor

Specified by:

getValue in class BaseObjectClassFieldExtractor