Package org.drools.drl.parser.lang.dsl

Class DefaultExpander

java.lang.Object
org.drools.drl.parser.lang.dsl.DefaultExpander
All Implemented Interfaces:
Expander
public class DefaultExpander extends Object implements Expander
The default expander uses String templates to provide pseudo natural language, as well as general DSLs. For most people, this should do the job just fine.

  • Field Details

    • logger

      protected static final transient org.slf4j.Logger logger

  • Constructor Details

    • DefaultExpander

      public DefaultExpander()
      Creates a new DefaultExpander

  • Method Details

    • addDSLMapping

      public void addDSLMapping(DSLMapping mapping)
      Add the new mapping to this expander.
      Specified by:
      addDSLMapping in interface Expander
      Parameters:
      mapping -

    • expand

      public String expand(Reader drlReader) throws IOException
      Description copied from interface: Expander
      Expands (process) the expression Just-In-Time for the parser. If the source is not meant to be expanded, or if no appropriate match was found for expansion, it will echo back the same expression.
      Specified by:
      expand in interface Expander
      Parameters:
      drlReader - the source code to be pre-processed
      Returns:
      source code after running pre-processors
      Throws:
      IOException

    • expand

      public String expand(String drl)
      Description copied from interface: Expander
      Expands (process) the expression Just-In-Time for the parser. If the source is not meant to be expanded, or if no appropriate match was found for expansion, it will echo back the same expression.
      Specified by:
      expand in interface Expander
      Parameters:
      drl - the source code to be expanded
      Returns:
      source code after running pre-processors

    • getErrors

      public List<ExpanderException> getErrors()
      Description copied from interface: Expander
      Returns the list of errors from the last expansion made
      Specified by:
      getErrors in interface Expander
      Returns:
      A list of ExpanderException

    • hasErrors

      public boolean hasErrors()
      Description copied from interface: Expander
      Returns true in case the last expansion had any errors
      Specified by:
      hasErrors in interface Expander
      Returns: