XMLEventReader (Java EE 5 SDK)

This is the top level interface for parsing XML Events. It provides the ability to peek at the next event and returns configuration information through the property interface.

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

方法摘要
`void`	`close()` Frees any resources associated with this Reader.
`String`	`getElementText()` Reads the content of a text-only element.
`Object`	`getProperty(String name)` Get the value of a feature/property from the underlying implementation
`boolean`	`hasNext()` Check if there are more events.
`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.

Methods inherited from interface java.util.Iterator
`next, remove`

方法详细信息

nextEvent

XMLEvent nextEvent()
                   throws XMLStreamException

Get the next XMLEvent

抛出异常:: XMLStreamException - if there is an error with the underlying XML.; NoSuchElementException - iteration has no more elements.
另请参见:: XMLEvent

hasNext

boolean hasNext()

Check if there are more events. Returns true if there are more events and false otherwise.

规范说明:: hasNext in interface Iterator

返回:: true if the event reader has more events, false otherwise

peek

XMLEvent peek()
              throws XMLStreamException

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().

抛出异常:: XMLStreamException
另请参见:: XMLEvent

getElementText

String getElementText()
                      throws XMLStreamException

Reads the content of a text-only element. Precondition: the current event is START_ELEMENT. Postcondition: The current event is the corresponding END_ELEMENT.

抛出异常:: XMLStreamException - if the current event is not a START_ELEMENT or if a non text element is encountered

nextTag

XMLEvent nextTag()
                 throws XMLStreamException

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.

抛出异常:: XMLStreamException - if anything other than space characters are encountered

getProperty

Object getProperty(String name)
                   throws IllegalArgumentException

Get the value of a feature/property from the underlying implementation

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

close

void close()
           throws XMLStreamException

Frees any resources associated with this Reader. This method does not close the underlying input source.

抛出异常:: XMLStreamException - if there are errors freeing associated resources

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Java EE 5 SDK

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