org.springframework.expression.spel.ast

Class ConstructorReference

  • All Implemented Interfaces:
    Opcodes, SpelNode


    public class ConstructorReference
    extends SpelNodeImpl
    Represents the invocation of a constructor. Either a constructor on a regular type or construction of an array. When an array is constructed, an initializer can be specified.

    Examples:
    new String('hello world')
    new int[]{1,2,3,4}
    new int[3] new int[3]{1,2,3}

    Since:
    3.0
    Author:
    Andy Clement, Juergen Hoeller
    • Constructor Detail

      • ConstructorReference

        public ConstructorReference(int pos,
                                    SpelNodeImpl... arguments)
        Create a constructor reference. The first argument is the type, the rest are the parameters to the constructor call
      • ConstructorReference

        public ConstructorReference(int pos,
                                    SpelNodeImpl[] dimensions,
                                    SpelNodeImpl... arguments)
        Create a constructor reference. The first argument is the type, the rest are the parameters to the constructor call
    • Method Detail

      • toStringAST

        public java.lang.String toStringAST()
        Description copied from interface: SpelNode
        Return the string form the this AST node.
        Returns:
        the string form
      • isCompilable

        public boolean isCompilable()
        Description copied from class: SpelNodeImpl
        Check whether a node can be compiled to bytecode. The reasoning in each node may be different but will typically involve checking whether the exit type descriptor of the node is known and any relevant child nodes are compilable.
        Overrides:
        isCompilable in class SpelNodeImpl
        Returns:
        true if this node can be compiled to bytecode
      • generateCode

        public void generateCode(MethodVisitor mv,
                                 CodeFlow cf)
        Description copied from class: SpelNodeImpl
        Generate the bytecode for this node into the supplied visitor. Context info about the current expression being compiled is available in the codeflow object. For example it will include information about the type of the object currently on the stack.
        Overrides:
        generateCode in class SpelNodeImpl
        Parameters:
        mv - the ASM MethodVisitor into which code should be generated
        cf - a context object with info about what is on the stack