bboss.org.apache.velocity.runtime.parser.node

类 ASTElseIfStatement

java.lang.Object

bboss.org.apache.velocity.runtime.parser.node.SimpleNode

bboss.org.apache.velocity.runtime.parser.node.ASTElseIfStatement

所有已实现的接口:

Node, Renderable

public class ASTElseIfStatement
extends SimpleNode

This class is responsible for handling the ElseIf VTL control statement. Please look at the Parser.jjt file which is what controls the generation of this class.

字段概要

从类继承的字段 bboss.org.apache.velocity.runtime.parser.node.SimpleNode

children, first, id, info, invalid, last, log, parent, parser, rsvc, state, templateName

构造器概要

构造器

构造器和说明
ASTElseIfStatement(int id)
ASTElseIfStatement(Parser p, int id)

方法概要

限定符和类型	方法和说明
boolean	evaluate(InternalContextAdapter context) An ASTElseStatement is true if the expression it contains evaluates to true.
java.lang.Object	jjtAccept(ParserVisitor visitor, java.lang.Object data)
boolean	render(InternalContextAdapter context, java.io.Writer writer)

从类继承的方法 bboss.org.apache.velocity.runtime.parser.node.SimpleNode

childrenAccept, dump, execute, getChildren, getColumn, getFirstToken, getInfo, getLastToken, getLine, getLocation, getRuntimeServices, getTemplateName, getType, init, isInvalid, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, literal, setFirstToken, setInfo, setInvalid, toString, toString, value

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

ASTElseIfStatement

public ASTElseIfStatement(int id)

参数:

id -

ASTElseIfStatement

public ASTElseIfStatement(Parser p,
                          int id)

参数:

p -

id -

方法详细资料

jjtAccept

public java.lang.Object jjtAccept(ParserVisitor visitor,
                                  java.lang.Object data)

指定者:

jjtAccept 在接口中 Node

覆盖:

jjtAccept 在类中 SimpleNode

返回:

The Node execution result object.

另请参阅:

SimpleNode.jjtAccept(bboss.org.apache.velocity.runtime.parser.node.ParserVisitor, java.lang.Object)

evaluate

public boolean evaluate(InternalContextAdapter context)
                 throws MethodInvocationException

An ASTElseStatement is true if the expression it contains evaluates to true. Expressions know how to evaluate themselves, so we do that here and return the value back to ASTIfStatement where this node was originally asked to evaluate itself.

指定者:

evaluate 在接口中 Node

覆盖:

evaluate 在类中 SimpleNode

参数:

context -

返回:

True if all childs are true.

抛出:

MethodInvocationException

另请参阅:

Node.evaluate(bboss.org.apache.velocity.context.InternalContextAdapter)

render

public boolean render(InternalContextAdapter context,
                      java.io.Writer writer)
               throws java.io.IOException,
                      MethodInvocationException,
                      ResourceNotFoundException,
                      ParseErrorException

指定者:

render 在接口中 Node

指定者:

render 在接口中 Renderable

覆盖:

render 在类中 SimpleNode

返回:

True if the node rendered successfully.

抛出:

java.io.IOException

MethodInvocationException

ResourceNotFoundException

ParseErrorException

另请参阅:

SimpleNode.render(bboss.org.apache.velocity.context.InternalContextAdapter, java.io.Writer)