Package org.apache.commons.jexl3.parser

Class JexlNode

java.lang.Object
org.apache.commons.jexl3.parser.SimpleNode
org.apache.commons.jexl3.parser.JexlNode
All Implemented Interfaces:
Node
Direct Known Subclasses:
ASTAddNode, ASTAmbiguous, ASTAndNode, ASTAnnotatedStatement, ASTAnnotation, ASTArguments, ASTArrayAccess, ASTArrayLiteral, ASTAssignment, ASTBitwiseAndNode, ASTBitwiseComplNode, ASTBitwiseOrNode, ASTBitwiseXorNode, ASTBreak, ASTConstructorNode, ASTContinue, ASTDecrementGetNode, ASTDefineVars, ASTDivNode, ASTDoWhileStatement, ASTEmptyFunction, ASTEQNode, ASTERNode, ASTEWNode, ASTExtendedLiteral, ASTFalseNode, ASTFunctionNode, ASTGENode, ASTGetDecrementNode, ASTGetIncrementNode, ASTGTNode, ASTIdentifier, ASTIdentifierAccess, ASTIfStatement, ASTIncrementGetNode, ASTJxltLiteral, ASTLENode, ASTLTNode, ASTMapEntry, ASTMapLiteral, ASTMethodNode, ASTModNode, ASTMulNode, ASTNENode, ASTNEWNode, ASTNotNode, ASTNRNode, ASTNSWNode, ASTNullLiteral, ASTNullpNode, ASTNumberLiteral, ASTOrNode, ASTQualifiedIdentifier, ASTRangeNode, ASTReference, ASTReferenceExpression, ASTRegexLiteral, ASTReturnStatement, ASTSetAddNode, ASTSetAndNode, ASTSetDivNode, ASTSetLiteral, ASTSetModNode, ASTSetMultNode, ASTSetOrNode, ASTSetShiftLeftNode, ASTSetShiftRightNode, ASTSetShiftRightUnsignedNode, ASTSetSubNode, ASTSetXorNode, ASTShiftLeftNode, ASTShiftRightNode, ASTShiftRightUnsignedNode, ASTSizeFunction, ASTStringLiteral, ASTSubNode, ASTSWNode, ASTTernaryNode, ASTTrueNode, ASTUnaryMinusNode, ASTUnaryPlusNode, ASTWhileStatement, JexlLexicalNode
public abstract class JexlNode extends SimpleNode
Base class for parser nodes - holds an 'image' of the token for later use.
Since:
2.0

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:

    • lc

      private int lc

  • Constructor Details

    • JexlNode

      public JexlNode(int id)

    • JexlNode

      public JexlNode(Parser p, int id)

  • Method Details

    • jjtSetFirstToken

      public void jjtSetFirstToken(Token t)

    • jjtSetLastToken

      public void jjtSetLastToken(Token t)

    • getLine

      public int getLine()

    • getColumn

      public int getColumn()

    • jexlInfo

      public JexlInfo jexlInfo()
      Gets the associated JexlInfo instance.
      Returns:
      the info

    • clearCache

      public void clearCache()
      Clears any cached value of type JexlProperty{G,S}et or JexlMethod.

      This is called when the engine detects the evaluation of a script occurs with a class loader different that the one that created it.

    • isStrictOperator

      public boolean isStrictOperator(JexlArithmetic arithmetic)
      Checks whether this node is an operator that accepts a null argument even when arithmetic is in strict mode. The default cases are equals and not equals.
      Returns:
      true if node accepts null arguments, false otherwise

    • isConstant

      public boolean isConstant()
      Whether this node is a constant node.

      Its value can not change after the first evaluation and can be cached indefinitely.

      Returns:
      true if constant, false otherwise

    • isConstant

      protected boolean isConstant(boolean literal)

    • isLeftValue

      public boolean isLeftValue()
      Whether this node is a left value.
      Returns:
      true if node is assignable, false otherwise

    • isGlobalVar

      public boolean isGlobalVar()
      Returns:
      true if this node looks like a global var

    • isSafeLhs

      public boolean isSafeLhs(boolean safe)
      Whether this node is the left-hand side of a safe access identifier as in. For instance, in 'x?.y' , 'x' is safe.
      Parameters:
      safe - whether the engine is in safe-navigation mode
      Returns:
      true if safe lhs, false otherwise