Package org.operaton.bpm.impl.juel

Class AstIdentifier

java.lang.Object
org.operaton.bpm.impl.juel.AstNode
org.operaton.bpm.impl.juel.AstIdentifier
All Implemented Interfaces:
ExpressionNode, IdentifierNode, Node
public class AstIdentifier extends AstNode implements IdentifierNode

  • Constructor Details

    • AstIdentifier

      public AstIdentifier(String name, int index)

  • Method Details

    • getType

      public Class<?> getType(Bindings bindings, jakarta.el.ELContext context)
      Description copied from interface: ExpressionNode
      Get the value type accepted in ExpressionNode.setValue(Bindings, ELContext, Object).
      Specified by:
      getType in interface ExpressionNode
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      Returns:
      accepted type or null for non-lvalue nodes

    • isLeftValue

      public boolean isLeftValue()
      Specified by:
      isLeftValue in interface ExpressionNode
      Returns:
      true if the subtree rooted at this node could be used as an lvalue expression (identifier or property sequence with non-literal prefix).

    • isMethodInvocation

      public boolean isMethodInvocation()
      Specified by:
      isMethodInvocation in interface ExpressionNode
      Returns:
      true if the subtree rooted at this node is a method invocation.

    • isLiteralText

      public boolean isLiteralText()
      Specified by:
      isLiteralText in interface ExpressionNode
      Returns:
      true if this node represents literal text

    • getValueReference

      public jakarta.el.ValueReference getValueReference(Bindings bindings, jakarta.el.ELContext context)
      Description copied from interface: ExpressionNode
      Get value reference.
      Specified by:
      getValueReference in interface ExpressionNode
      Parameters:
      bindings -
      context -
      Returns:
      value reference

    • eval

      public Object eval(Bindings bindings, jakarta.el.ELContext context)
      Specified by:
      eval in class AstNode

    • setValue

      public void setValue(Bindings bindings, jakarta.el.ELContext context, Object value)
      Description copied from interface: ExpressionNode
      Assign value.
      Specified by:
      setValue in interface ExpressionNode
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      value - value to set

    • isReadOnly

      public boolean isReadOnly(Bindings bindings, jakarta.el.ELContext context)
      Description copied from interface: ExpressionNode
      Determine whether ExpressionNode.setValue(Bindings, ELContext, Object) will throw a PropertyNotWritableException.
      Specified by:
      isReadOnly in interface ExpressionNode
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      Returns:
      true if this a read-only expression node

    • getMethod

      protected Method getMethod(Bindings bindings, jakarta.el.ELContext context, Class<?> returnType, Class<?>[] paramTypes)

    • getMethodInfo

      public jakarta.el.MethodInfo getMethodInfo(Bindings bindings, jakarta.el.ELContext context, Class<?> returnType, Class<?>[] paramTypes)
      Description copied from interface: ExpressionNode
      Get method information. If this is a non-lvalue node, answer null.
      Specified by:
      getMethodInfo in interface ExpressionNode
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      returnType - expected method return type (may be null meaning don't care)
      paramTypes - expected method argument types
      Returns:
      method information or null

    • invoke

      public Object invoke(Bindings bindings, jakarta.el.ELContext context, Class<?> returnType, Class<?>[] paramTypes, Object[] params)
      Description copied from interface: ExpressionNode
      Invoke method.
      Specified by:
      invoke in interface ExpressionNode
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      returnType - expected method return type (may be null meaning don't care)
      paramTypes - expected method argument types
      params - parameter values
      Returns:
      result of the method invocation

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • appendStructure

      public void appendStructure(StringBuilder b, Bindings bindings)
      Specified by:
      appendStructure in class AstNode

    • getIndex

      public int getIndex()
      Description copied from interface: IdentifierNode
      Get the unique index of this identifier in the expression (e.g. preorder index)
      Specified by:
      getIndex in interface IdentifierNode

    • getName

      public String getName()
      Description copied from interface: IdentifierNode
      Get the identifier name
      Specified by:
      getName in interface IdentifierNode

    • getCardinality

      public int getCardinality()
      Description copied from interface: Node
      Get the node's number of children.
      Specified by:
      getCardinality in interface Node

    • getChild

      public AstNode getChild(int i)
      Description copied from interface: Node
      Get i'th child
      Specified by:
      getChild in interface Node