EventReaderDelegate (Java EE 5 SDK)

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javax.xml.stream.util Class EventReaderDelegate

java.lang.Object
  extended by javax.xml.stream.util.EventReaderDelegate
所有已实现的接口:
Iterator, XMLEventReader
public class EventReaderDelegate
extends Object
implements XMLEventReader

This is the base class for deriving an XMLEventReader filter. This class is designed to sit between an XMLEventReader and an application's XMLEventReader. By default each method does nothing but call the corresponding method on the parent interface.

版本:
1.0
作者:
Copyright (c) 2003 by BEA Systems. All Rights Reserved.
另请参见:
XMLEventReader, StreamReaderDelegate

构造器摘要
EventReaderDelegate()
          Construct an empty filter with no parent.
EventReaderDelegate(XMLEventReader reader)
          Construct an filter with the specified parent.
 
方法摘要
 void close()
          Frees any resources associated with this Reader.
 String getElementText()
          Reads the content of a text-only element.
 XMLEventReader getParent()
          Get the parent of this instance.
 Object getProperty(String name)
          Get the value of a feature/property from the underlying implementation
 boolean hasNext()
          Check if there are more events.
 Object next()
           
 XMLEvent nextEvent()
          Get the next XMLEvent
 XMLEvent nextTag()
          Skips any insignificant space events until a START_ELEMENT or END_ELEMENT is reached.
 XMLEvent peek()
          Check the next XMLEvent without reading it from the stream.
 void remove()
           
 void setParent(XMLEventReader reader)
          Set the parent of this instance.
 
类方法继承 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

构造器详细信息

EventReaderDelegate

public EventReaderDelegate()
Construct an empty filter with no parent.

EventReaderDelegate

public EventReaderDelegate(XMLEventReader reader)
Construct an filter with the specified parent.

参数:
reader - the parent

方法详细信息

setParent

public void setParent(XMLEventReader reader)
Set the parent of this instance.

参数:
reader - the new parent

getParent

public XMLEventReader getParent()
Get the parent of this instance.

返回:
the parent or null if none is set

nextEvent

public XMLEvent nextEvent()
                   throws XMLStreamException
Description copied from interface: XMLEventReader
Get the next XMLEvent

规范说明:
nextEvent in interface XMLEventReader
抛出异常:
XMLStreamException - if there is an error with the underlying XML.
另请参见:
XMLEvent

next

public Object next()
规范说明:
next in interface Iterator

hasNext

public boolean hasNext()
Description copied from interface: XMLEventReader
Check if there are more events. Returns true if there are more events and false otherwise.

规范说明:
hasNext in interface Iterator
规范说明:
hasNext in interface XMLEventReader
返回:
true if the event reader has more events, false otherwise

peek

public XMLEvent peek()
              throws XMLStreamException
Description copied from interface: XMLEventReader
Check the next XMLEvent without reading it from the stream. Returns null if the stream is at EOF or has no more XMLEvents. A call to peek() will be equal to the next return of next().

规范说明:
peek in interface XMLEventReader
抛出异常:
XMLStreamException
另请参见:
XMLEvent

close

public void close()
           throws XMLStreamException
Description copied from interface: XMLEventReader
Frees any resources associated with this Reader. This method does not close the underlying input source.

规范说明:
close in interface XMLEventReader
抛出异常:
XMLStreamException - if there are errors freeing associated resources

getElementText

public String getElementText()
                      throws XMLStreamException
Description copied from interface: XMLEventReader
Reads the content of a text-only element. Precondition: the current event is START_ELEMENT. Postcondition: The current event is the corresponding END_ELEMENT.

规范说明:
getElementText in interface XMLEventReader
抛出异常:
XMLStreamException - if the current event is not a START_ELEMENT or if a non text element is encountered

nextTag

public XMLEvent nextTag()
                 throws XMLStreamException
Description copied from interface: XMLEventReader
Skips any insignificant space events until a START_ELEMENT or END_ELEMENT is reached. If anything other than space characters are encountered, an exception is thrown. This method should be used when processing element-only content because the parser is not able to recognize ignorable whitespace if the DTD is missing or not interpreted.

规范说明:
nextTag in interface XMLEventReader
抛出异常:
XMLStreamException - if anything other than space characters are encountered

getProperty

public Object getProperty(String name)
                   throws IllegalArgumentException
Description copied from interface: XMLEventReader
Get the value of a feature/property from the underlying implementation

规范说明:
getProperty in interface XMLEventReader
参数:
name - The name of the property
返回:
The value of the property
抛出异常:
IllegalArgumentException - if the property is not supported

remove

public void remove()
规范说明:
remove in interface Iterator
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Java EE 5 SDK

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摘要: 嵌套 | 字段 | 构造器 | 方法 详细信息: 字段 | 构造器 | 方法
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