org.apache.velocity.runtime.parser.node
Class ASTAndNode
java.lang.Object
org.apache.velocity.runtime.parser.node.SimpleNode
org.apache.velocity.runtime.parser.node.ASTAndNode
- All Implemented Interfaces:
- Node
public class ASTAndNode
- extends SimpleNode
Please look at the Parser.jjt file which is
what controls the generation of this class.
- Version:
- $Id: ASTAndNode.java 687184 2008-08-19 22:16:39Z nbubna $
- Author:
- Jason van Zyl, Geir Magnusson Jr.
Fields inherited from class org.apache.velocity.runtime.parser.node.SimpleNode |
children, first, id, info, invalid, last, log, parent, parser, rsvc, state, templateName |
Methods inherited from class org.apache.velocity.runtime.parser.node.SimpleNode |
childrenAccept, dump, execute, getColumn, getFirstToken, getInfo, getLastToken, getLine, getLocation, getTemplateName, getType, init, isInvalid, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, literal, render, setFirstToken, setInfo, setInvalid, toString, toString |
ASTAndNode
public ASTAndNode(int id)
- Parameters:
id
-
ASTAndNode
public ASTAndNode(Parser p,
int id)
- Parameters:
p
- id
-
jjtAccept
public Object jjtAccept(ParserVisitor visitor,
Object data)
- Specified by:
jjtAccept
in interface Node
- Overrides:
jjtAccept
in class SimpleNode
- Returns:
- The Node execution result object.
- See Also:
SimpleNode.jjtAccept(org.apache.velocity.runtime.parser.node.ParserVisitor, java.lang.Object)
value
public Object value(InternalContextAdapter context)
throws MethodInvocationException
- Returns the value of the expression.
Since the value of the expression is simply the boolean
result of evaluate(), lets return that.
- Specified by:
value
in interface Node
- Overrides:
value
in class SimpleNode
- Parameters:
context
-
- Returns:
- The value of the expression.
- Throws:
MethodInvocationException
- See Also:
Node.value(org.apache.velocity.context.InternalContextAdapter)
evaluate
public boolean evaluate(InternalContextAdapter context)
throws MethodInvocationException
- logical and :
null && right = false
left && null = false
null && null = false
- Specified by:
evaluate
in interface Node
- Overrides:
evaluate
in class SimpleNode
- Parameters:
context
-
- Returns:
- True if both sides are true.
- Throws:
MethodInvocationException
- See Also:
Node.evaluate(org.apache.velocity.context.InternalContextAdapter)
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