ErrorHandler (Drools :: Compiler 7.68.0.Final API)

java.lang.Object
- org.drools.compiler.builder.impl.errors.ErrorHandler

Direct Known Subclasses:

FunctionErrorHandler, RuleErrorHandler, SrcErrorHandler
```
public abstract class ErrorHandler
extends Object
```
This is the super of the error handlers. Each error handler knows how to report a compile error of its type, should it happen. This is needed, as the compiling is done as one hit at the end, and we need to be able to work out what rule/ast element caused the error. An error handler it created for each class task that is queued to be compiled. This doesn't mean an error has occurred, it just means it *may* occur in the future and we need to be able to map it back to the AST element that originally spawned the code to be compiled.

Field Summary

Fields
Modifier and Type Field Description

protected String message

Constructor Summary

Constructors
Constructor Description

ErrorHandler()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addError(org.kie.internal.jci.CompilationProblem err)`
`protected org.kie.internal.jci.CompilationProblem[]`	`collectCompilerProblems()`	We must use an error of JCI problem objects.
`abstract DroolsError`	`getError()`
`boolean`	`isInError()`	This needes to be checked if there is infact an error

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - message
```
protected String message
```
- Constructor Detail
  - ErrorHandler
```
public ErrorHandler()
```
- Method Detail
  - isInError
```
public boolean isInError()
```
    This needes to be checked if there is infact an error
  - addError
```
public void addError(org.kie.internal.jci.CompilationProblem err)
```
  - getError
```
public abstract DroolsError getError()
```
    Returns:
    
    A DroolsError object populated as appropriate, should the unthinkable happen and this need to be reported.
  - collectCompilerProblems
```
protected org.kie.internal.jci.CompilationProblem[] collectCompilerProblems()
```
    We must use an error of JCI problem objects. If there are no problems, null is returned. These errors are placed in the DroolsError instances. Its not 1 to 1 with reported errors.