org.teiid.query.eval

Class Evaluator

java.lang.Object

org.teiid.query.eval.Evaluator

Direct Known Subclasses:

SubqueryAwareEvaluator

public class Evaluator
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Evaluator.NameValuePair<T>

Field Summary

Fields

Modifier and Type	Field and Description
protected CommandContext	context
protected ProcessorDataManager	dataMgr
protected Map	elements
static char[]	REGEX_RESERVED
static MatchCriteria.PatternTranslator	SIMILAR_TO_REGEX

Constructor Summary

Constructors

Constructor and Description
Evaluator(Map elements, ProcessorDataManager dataMgr, CommandContext context)

Method Summary

Modifier and Type	Method and Description
static Boolean	compare(int operator, Object leftValue, Object value)
static boolean	evaluate(Criteria criteria)
boolean	evaluate(Criteria criteria, List<?> tuple)
static Object	evaluate(Expression expression)
Object	evaluate(Expression expression, List<?> tuple)
void	evaluateParameters(List<DerivedColumn> cols, List<?> tuple, Map<String,Object> parameters) Evaluate the parameters and return the context item if it exists
protected Object	evaluateProcedure(Function function, List<?> tuple, Object[] values)
protected Object	evaluatePushdown(Function function, List<?> tuple, Object[] values)
protected ValueIterator	evaluateSubquery(SubqueryContainer<?> container, List<?> tuple)
Boolean	evaluateTVL(Criteria criteria, List<?> tuple)
static InputStreamFactory	getInputStreamFactory(Streamable<?> s)
void	initialize(CommandContext context, ProcessorDataManager dataMgr)
protected Object	internalEvaluate(Expression expression, List<?> tuple)
static JsonType	jsonArray(CommandContext context, Function f, Object[] vals, JSONFunctionMethods.JSONBuilder builder, Evaluator eval, List<?> tuple)

Methods inherited from class java.lang.Object

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

Field Detail

REGEX_RESERVED

public static final char[] REGEX_RESERVED

SIMILAR_TO_REGEX

public static final MatchCriteria.PatternTranslator SIMILAR_TO_REGEX

elements

protected Map elements

dataMgr

protected ProcessorDataManager dataMgr

context

protected CommandContext context

Constructor Detail

Evaluator

public Evaluator(Map elements,
                 ProcessorDataManager dataMgr,
                 CommandContext context)

Method Detail

evaluate

public static boolean evaluate(Criteria criteria)
                        throws ExpressionEvaluationException,
                               BlockedException,
                               TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

evaluate

public static Object evaluate(Expression expression)
                       throws ExpressionEvaluationException,
                              BlockedException,
                              TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

initialize

public void initialize(CommandContext context,
                       ProcessorDataManager dataMgr)

evaluate

public boolean evaluate(Criteria criteria,
                        List<?> tuple)
                 throws ExpressionEvaluationException,
                        BlockedException,
                        TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

evaluateTVL

public Boolean evaluateTVL(Criteria criteria,
                           List<?> tuple)
                    throws ExpressionEvaluationException,
                           BlockedException,
                           TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

compare

public static Boolean compare(int operator,
                              Object leftValue,
                              Object value)
                       throws AssertionError

Throws:

AssertionError

evaluate

public Object evaluate(Expression expression,
                       List<?> tuple)
                throws ExpressionEvaluationException,
                       BlockedException,
                       TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

internalEvaluate

protected Object internalEvaluate(Expression expression,
                                  List<?> tuple)
                           throws ExpressionEvaluationException,
                                  BlockedException,
                                  TeiidComponentException

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

getInputStreamFactory

public static InputStreamFactory getInputStreamFactory(Streamable<?> s)

jsonArray

public static JsonType jsonArray(CommandContext context,
                                 Function f,
                                 Object[] vals,
                                 JSONFunctionMethods.JSONBuilder builder,
                                 Evaluator eval,
                                 List<?> tuple)
                          throws TeiidProcessingException,
                                 BlockedException,
                                 TeiidComponentException

Throws:

TeiidProcessingException

BlockedException

TeiidComponentException

evaluateParameters

public void evaluateParameters(List<DerivedColumn> cols,
                               List<?> tuple,
                               Map<String,Object> parameters)
                        throws ExpressionEvaluationException,
                               BlockedException,
                               TeiidComponentException

Evaluate the parameters and return the context item if it exists

Throws:

ExpressionEvaluationException

BlockedException

TeiidComponentException

evaluatePushdown

protected Object evaluatePushdown(Function function,
                                  List<?> tuple,
                                  Object[] values)
                           throws FunctionExecutionException,
                                  TeiidComponentException,
                                  TeiidProcessingException

Throws:

FunctionExecutionException

TeiidComponentException

TeiidProcessingException

evaluateSubquery

protected ValueIterator evaluateSubquery(SubqueryContainer<?> container,
                                         List<?> tuple)
                                  throws TeiidProcessingException,
                                         BlockedException,
                                         TeiidComponentException

Parameters:

container -

tuple -

Returns:

Throws:

TeiidProcessingException

BlockedException

TeiidComponentException

evaluateProcedure

protected Object evaluateProcedure(Function function,
                                   List<?> tuple,
                                   Object[] values)
                            throws TeiidComponentException,
                                   TeiidProcessingException

Throws:

TeiidComponentException

TeiidProcessingException