Class AstProperty

java.lang.Object
de.odysseus.el.tree.impl.ast.AstNode
de.odysseus.el.tree.impl.ast.AstProperty
All Implemented Interfaces:
ExpressionNode, Node
Direct Known Subclasses:
AstBracket, AstDot
public abstract class AstProperty extends AstNode

  • Field Details

    • prefix

      protected final AstNode prefix

    • lvalue

      protected final boolean lvalue

    • strict

      protected final boolean strict

    • ignoreReturnType

      protected final boolean ignoreReturnType

  • Constructor Details

    • AstProperty

      public AstProperty(AstNode prefix, boolean lvalue, boolean strict)

    • AstProperty

      public AstProperty(AstNode prefix, boolean lvalue, boolean strict, boolean ignoreReturnType)

  • Method Details

    • getProperty

      protected abstract Object getProperty(Bindings bindings, javax.el.ELContext context) throws javax.el.ELException
      Throws:
      javax.el.ELException

    • getPrefix

      protected AstNode getPrefix()

    • getValueReference

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

    • eval

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

    • isLiteralText

      public final boolean isLiteralText()
      Returns:
      true if this node represents literal text

    • isLeftValue

      public final boolean isLeftValue()
      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()
      Returns:
      true if the subtree rooted at this node is a method invocation.

    • getType

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

    • isReadOnly

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

    • setValue

      public void setValue(Bindings bindings, javax.el.ELContext context, Object value) throws javax.el.ELException
      Description copied from interface: ExpressionNode
      Assign value.
      Parameters:
      bindings - bindings containing variables and functions
      context - evaluation context
      value - value to set
      Throws:
      javax.el.ELException

    • findMethod

      protected Method findMethod(String name, Class<?> clazz, Class<?> returnType, Class<?>[] paramTypes)

    • getMethodInfo

      public javax.el.MethodInfo getMethodInfo(Bindings bindings, javax.el.ELContext context, Class<?> returnType, Class<?>[] paramTypes)
      Description copied from interface: ExpressionNode
      Get method information. If this is a non-lvalue node, answer null.
      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, javax.el.ELContext context, Class<?> returnType, Class<?>[] paramTypes, Object[] paramValues)
      Description copied from interface: ExpressionNode
      Invoke method.
      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
      paramValues - parameter values
      Returns:
      result of the method invocation

    • getChild

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