Package com.espertech.esper.epl.parse

Parsers and AST tree walkers and helper classes transforming AST into business objects

See:
Description

Interface Summary

ParseRuleSelector

For selection of the parse rule to use.

Class Summary

Antlr4ErrorListener
Antlr4ErrorStrategy
ASTAggregationHelper
ASTAnnotationHelper	Walker to annotation stuctures.
ASTConstantHelper	Parses constant strings and returns the constant Object.
ASTContextHelper
ASTCreateSchemaHelper
ASTExpressionDeclHelper
ASTExprHelper
ASTFilterSpecHelper	Builds a filter specification from filter AST nodes.
ASTGraphHelper
ASTGroupByHelper
ASTJsonHelper	Walker to annotation stuctures.
ASTLibFunctionHelper
ASTLibFunctionHelper.ASTLibModel
ASTLibFunctionHelper.ASTLibModelChainElement
ASTMatchRecognizeHelper	Helper class for walking the match-recognize AST.
ASTMatchUntilHelper	Helper for walking a pattern match-until clause.
ASTOutputLimitHelper	Builds an output limit spec from an output limit AST node.
ASTSubstitutionHelper
ASTTableExprHelper
ASTTableHelper
ASTUtil	Utility class for AST node handling.
EPLTreeWalkerListener	Called during the walks of a EPL expression AST tree as specified in the grammar file.
ExceptionConvertor	Converts recognition exceptions.
NoCaseSensitiveStream	For use with ANTLR to create a case-insensitive token stream.
ParseHelper	Helper class for parsing an expression and walking a parse tree.
ParseResult	Result of a parse action.

Exception Summary

ASTWalkException

This exception is thrown to indicate a problem in statement creation.

Package com.espertech.esper.epl.parse Description

Parsers and AST tree walkers and helper classes transforming AST into business objects