Package org.apache.iotdb.tsfile.read.common.parser

Class PathVisitor

  • All Implemented Interfaces:
    org.antlr.v4.runtime.tree.ParseTreeVisitor<java.lang.String[]>, org.apache.iotdb.db.qp.sql.PathParserVisitor<java.lang.String[]>
    public class PathVisitor
extends org.apache.iotdb.db.qp.sql.PathParserBaseVisitor<java.lang.String[]>

    • Constructor Summary

      Constructors 
      Constructor Description
      PathVisitor()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean isRealNumber​(java.lang.String str)
      Return true if the str is a real number.
      java.lang.String[] visitPath​(org.apache.iotdb.db.qp.sql.PathParser.PathContext ctx)  
      java.lang.String[] visitPrefixPath​(org.apache.iotdb.db.qp.sql.PathParser.PrefixPathContext ctx)  
      java.lang.String[] visitSuffixPath​(org.apache.iotdb.db.qp.sql.PathParser.SuffixPathContext ctx)  

      • Methods inherited from class org.apache.iotdb.db.qp.sql.PathParserBaseVisitor

        visitIdentifier, visitKeyWords, visitNodeName, visitNodeNameSlice, visitNodeNameWithoutWildcard, visitWildcard

      • Methods inherited from class org.antlr.v4.runtime.tree.AbstractParseTreeVisitor

        aggregateResult, defaultResult, shouldVisitNextChild, visit, visitChildren, visitErrorNode, visitTerminal

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor

        visit, visitChildren, visitErrorNode, visitTerminal

    • Constructor Detail

      • PathVisitor

        public PathVisitor()

    • Method Detail

      • visitPath

        public java.lang.String[] visitPath​(org.apache.iotdb.db.qp.sql.PathParser.PathContext ctx)
        Specified by:
        visitPath in interface org.apache.iotdb.db.qp.sql.PathParserVisitor<java.lang.String[]>
        Overrides:
        visitPath in class org.apache.iotdb.db.qp.sql.PathParserBaseVisitor<java.lang.String[]>

      • visitPrefixPath

        public java.lang.String[] visitPrefixPath​(org.apache.iotdb.db.qp.sql.PathParser.PrefixPathContext ctx)
        Specified by:
        visitPrefixPath in interface org.apache.iotdb.db.qp.sql.PathParserVisitor<java.lang.String[]>
        Overrides:
        visitPrefixPath in class org.apache.iotdb.db.qp.sql.PathParserBaseVisitor<java.lang.String[]>

      • visitSuffixPath

        public java.lang.String[] visitSuffixPath​(org.apache.iotdb.db.qp.sql.PathParser.SuffixPathContext ctx)
        Specified by:
        visitSuffixPath in interface org.apache.iotdb.db.qp.sql.PathParserVisitor<java.lang.String[]>
        Overrides:
        visitSuffixPath in class org.apache.iotdb.db.qp.sql.PathParserBaseVisitor<java.lang.String[]>

      • isRealNumber

        public static boolean isRealNumber​(java.lang.String str)
        Return true if the str is a real number. Examples: 1.0; +1.0; -1.0; 0011; 011e3; +23e-3