com.espertech.esper.common.internal.epl.expression.core

Class ExprNodeUtilityValidate

java.lang.Object

com.espertech.esper.common.internal.epl.expression.core.ExprNodeUtilityValidate

public class ExprNodeUtilityValidate
extends Object

Constructor Summary

Constructors

Constructor and Description
ExprNodeUtilityValidate()

Method Summary

Modifier and Type	Method and Description
static Pair<String,ExprNode>	checkGetAssignmentToProp(ExprNode node)
static Pair<String,ExprNode>	checkGetAssignmentToVariableOrProp(ExprNode node)
static Map<String,ExprNamedParameterNode>	getNamedExpressionsHandleDups(List<ExprNode> parameters)
static ExprNode	getValidatedAssignment(OnTriggerSetAssignment assignment, ExprValidationContext validationContext)
static void	getValidatedSubtree(ExprNodeOrigin origin, ExprNode[][] exprNode, ExprValidationContext validationContext)
static void	getValidatedSubtree(ExprNodeOrigin origin, ExprNode[] exprNode, ExprValidationContext validationContext)
static ExprNode	getValidatedSubtree(ExprNodeOrigin origin, ExprNode exprNode, ExprValidationContext validationContext) Validates the expression node subtree that has this node as root.
static String	isMinimalExpression(ExprNode expression) Check if the expression is minimal: does not have a subselect, aggregation and does not need view resources
static void	validate(ExprNodeOrigin origin, List<ExprChainedSpec> chainSpec, ExprValidationContext validationContext)
static void	validateNamed(Map<String,ExprNamedParameterNode> namedExpressions, String[] namedParameters)
static boolean	validateNamedExpectType(ExprNamedParameterNode namedParameterNode, Class[] expectedTypes)
static void	validateNoSpecialsGroupByExpressions(ExprNode[] groupByNodes)
static void	validatePlainExpression(ExprNodeOrigin origin, ExprNode expression)
static void	validatePlainExpression(ExprNodeOrigin origin, ExprNode[] expressions)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprNodeUtilityValidate

public ExprNodeUtilityValidate()

Method Detail

validatePlainExpression

public static void validatePlainExpression(ExprNodeOrigin origin,
                                           ExprNode[] expressions)
                                    throws ExprValidationException

Throws:

ExprValidationException

validatePlainExpression

public static void validatePlainExpression(ExprNodeOrigin origin,
                                           ExprNode expression)
                                    throws ExprValidationException

Throws:

ExprValidationException

getValidatedAssignment

public static ExprNode getValidatedAssignment(OnTriggerSetAssignment assignment,
                                              ExprValidationContext validationContext)
                                       throws ExprValidationException

Throws:

ExprValidationException

isMinimalExpression

public static String isMinimalExpression(ExprNode expression)

Check if the expression is minimal: does not have a subselect, aggregation and does not need view resources

Parameters:

expression - to inspect

Returns:

null if minimal, otherwise name of offending sub-expression

getValidatedSubtree

public static ExprNode getValidatedSubtree(ExprNodeOrigin origin,
                                           ExprNode exprNode,
                                           ExprValidationContext validationContext)
                                    throws ExprValidationException

Validates the expression node subtree that has this node as root. Some of the nodes of the tree, including the root, might be replaced in the process.

Parameters:

origin - validate origin

exprNode - node

validationContext - context

Returns:

the root node of the validated subtree, possibly different than the root node of the unvalidated subtree

Throws:

ExprValidationException - when the validation fails

validateNamedExpectType

public static boolean validateNamedExpectType(ExprNamedParameterNode namedParameterNode,
                                              Class[] expectedTypes)
                                       throws ExprValidationException

Throws:

ExprValidationException

getNamedExpressionsHandleDups

public static Map<String,ExprNamedParameterNode> getNamedExpressionsHandleDups(List<ExprNode> parameters)
                                                                        throws ExprValidationException

Throws:

ExprValidationException

validateNamed

public static void validateNamed(Map<String,ExprNamedParameterNode> namedExpressions,
                                 String[] namedParameters)
                          throws ExprValidationException

Throws:

ExprValidationException

getValidatedSubtree

public static void getValidatedSubtree(ExprNodeOrigin origin,
                                       ExprNode[] exprNode,
                                       ExprValidationContext validationContext)
                                throws ExprValidationException

Throws:

ExprValidationException

getValidatedSubtree

public static void getValidatedSubtree(ExprNodeOrigin origin,
                                       ExprNode[][] exprNode,
                                       ExprValidationContext validationContext)
                                throws ExprValidationException

Throws:

ExprValidationException

validate

public static void validate(ExprNodeOrigin origin,
                            List<ExprChainedSpec> chainSpec,
                            ExprValidationContext validationContext)
                     throws ExprValidationException

Throws:

ExprValidationException

checkGetAssignmentToVariableOrProp

public static Pair<String,ExprNode> checkGetAssignmentToVariableOrProp(ExprNode node)
                                                                throws ExprValidationException

Throws:

ExprValidationException

checkGetAssignmentToProp

public static Pair<String,ExprNode> checkGetAssignmentToProp(ExprNode node)

validateNoSpecialsGroupByExpressions

public static void validateNoSpecialsGroupByExpressions(ExprNode[] groupByNodes)
                                                 throws ExprValidationException

Throws:

ExprValidationException