SimpleNode (Apache Tomcat 8.0.15 API Documentation)

java.lang.Object
- org.apache.el.lang.ELSupport
- - org.apache.el.parser.SimpleNode

All Implemented Interfaces:

Node

Direct Known Subclasses:

ArithmeticNode, AstAssign, AstBracketSuffix, AstChoice, AstCompositeExpression, AstConcatenation, AstDeferredExpression, AstDotSuffix, AstDynamicExpression, AstEmpty, AstFloatingPoint, AstFunction, AstIdentifier, AstInteger, AstLambdaExpression, AstLambdaParameters, AstListData, AstLiteralExpression, AstMapData, AstMapEntry, AstMethodParameters, AstNegative, AstNot, AstNull, AstSemicolon, AstSetData, AstString, AstValue, BooleanNode
```
public abstract class SimpleNode
extends ELSupport
implements Node
```
Author:

Jacob Hookom [jacob@hookom.net]

Field Summary

Fields
Modifier and Type Field and Description

protected Node[] children

protected int id

protected String image

protected Node parent
- Fields inherited from class org.apache.el.lang.ELSupport
  COERCE_TO_ZERO

Fields
Modifier and Type	Field and Description
`protected Node[]`	`children`
`protected int`	`id`
`protected String`	`image`
`protected Node`	`parent`

Constructor Summary

Constructors
Constructor and Description

SimpleNode(int i)

Constructors
Constructor and Description
`SimpleNode(int i)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`accept(NodeVisitor visitor)`
`boolean`	`equals(Object obj)`
`String`	`getImage()`
`MethodInfo`	`getMethodInfo(EvaluationContext ctx, Class<?>[] paramTypes)`
`Class<?>`	`getType(EvaluationContext ctx)`
`Object`	`getValue(EvaluationContext ctx)`
`ValueReference`	`getValueReference(EvaluationContext ctx)`
`int`	`hashCode()`
`Object`	`invoke(EvaluationContext ctx, Class<?>[] paramTypes, Object[] paramValues)`
`boolean`	`isParametersProvided()`
`boolean`	`isReadOnly(EvaluationContext ctx)`
`void`	`jjtAddChild(Node n, int i)` This method tells the node to add its argument to the node's list of children.
`void`	`jjtClose()` This method is called after all the child nodes have been added.
`Node`	`jjtGetChild(int i)` This method returns a child node.
`int`	`jjtGetNumChildren()` Return the number of children the node has.
`Node`	`jjtGetParent()`
`void`	`jjtOpen()` This method is called after the node has been made the current node.
`void`	`jjtSetParent(Node n)` This pair of methods are used to inform the node of its parent.
`void`	`setImage(String image)`
`void`	`setValue(EvaluationContext ctx, Object value)`
`String`	`toString()`

Methods inherited from class org.apache.el.lang.ELSupport
coerceToBoolean, coerceToEnum, coerceToNumber, coerceToNumber, coerceToNumber, coerceToString, coerceToType, compare, equals, isBigDecimalOp, isBigIntegerOp, isDoubleOp, isLongOp, isStringFloat

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - parent
```
protected Node parent
```
  - children
```
protected Node[] children
```
  - id
```
protected final int id
```
  - image
```
protected String image
```
- Constructor Detail
  - SimpleNode
```
public SimpleNode(int i)
```
- Method Detail
  - jjtOpen
```
public void jjtOpen()
```
    Description copied from interface: Node
    
    This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.
    
    Specified by:
    
    jjtOpen in interface Node
  - jjtClose
```
public void jjtClose()
```
    Description copied from interface: Node
    
    This method is called after all the child nodes have been added.
    
    Specified by:
    
    jjtClose in interface Node
  - jjtSetParent
```
public void jjtSetParent(Node n)
```
    Description copied from interface: Node
    
    This pair of methods are used to inform the node of its parent.
    
    Specified by:
    
    jjtSetParent in interface Node
  - jjtGetParent
```
public Node jjtGetParent()
```
    Specified by:
    
    jjtGetParent in interface Node
  - jjtAddChild
```
public void jjtAddChild(Node n,
               int i)
```
    Description copied from interface: Node
    
    This method tells the node to add its argument to the node's list of children.
    
    Specified by:
    
    jjtAddChild in interface Node
  - jjtGetChild
```
public Node jjtGetChild(int i)
```
    Description copied from interface: Node
    
    This method returns a child node. The children are numbered from zero, left to right.
    
    Specified by:
    
    jjtGetChild in interface Node
  - jjtGetNumChildren
```
public int jjtGetNumChildren()
```
    Description copied from interface: Node
    
    Return the number of children the node has.
    
    Specified by:
    
    jjtGetNumChildren in interface Node
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getImage
```
public String getImage()
```
    Specified by:
    
    getImage in interface Node
  - setImage
```
public void setImage(String image)
```
  - getType
```
public Class<?> getType(EvaluationContext ctx)
                 throws ELException
```
    Specified by:
    
    getType in interface Node
    
    Throws:
    
    ELException
  - getValue
```
public Object getValue(EvaluationContext ctx)
                throws ELException
```
    Specified by:
    
    getValue in interface Node
    
    Throws:
    
    ELException
  - isReadOnly
```
public boolean isReadOnly(EvaluationContext ctx)
                   throws ELException
```
    Specified by:
    
    isReadOnly in interface Node
    
    Throws:
    
    ELException
  - setValue
```
public void setValue(EvaluationContext ctx,
            Object value)
              throws ELException
```
    Specified by:
    
    setValue in interface Node
    
    Throws:
    
    ELException
  - accept
```
public void accept(NodeVisitor visitor)
            throws Exception
```
    Specified by:
    
    accept in interface Node
    
    Throws:
    
    Exception
  - invoke
```
public Object invoke(EvaluationContext ctx,
            Class<?>[] paramTypes,
            Object[] paramValues)
              throws ELException
```
    Specified by:
    
    invoke in interface Node
    
    Throws:
    
    ELException
  - getMethodInfo
```
public MethodInfo getMethodInfo(EvaluationContext ctx,
                       Class<?>[] paramTypes)
                         throws ELException
```
    Specified by:
    
    getMethodInfo in interface Node
    
    Throws:
    
    ELException
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - getValueReference
```
public ValueReference getValueReference(EvaluationContext ctx)
```
    Specified by:
    
    getValueReference in interface Node
    
    Since:
    
    EL 2.2
  - isParametersProvided
```
public boolean isParametersProvided()
```
    Specified by:
    
    isParametersProvided in interface Node
    
    Since:
    
    EL 2.2

Class SimpleNode

Field Summary

Fields inherited from class org.apache.el.lang.ELSupport

Constructor Summary

Method Summary

Methods inherited from class org.apache.el.lang.ELSupport

Methods inherited from class java.lang.Object

Field Detail

parent

children

id

image

Constructor Detail

SimpleNode

Method Detail

jjtOpen

jjtClose

jjtSetParent

jjtGetParent

jjtAddChild

jjtGetChild

jjtGetNumChildren

toString

getImage

setImage

getType

getValue

isReadOnly

setValue

accept

invoke

getMethodInfo

hashCode

equals

getValueReference

isParametersProvided