- java.lang.Object
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- org.xml.sax.helpers.LocatorImpl
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- All Implemented Interfaces:
- Locator
- Direct Known Subclasses:
- Locator2Impl
public class LocatorImpl extends Object implements Locator
Provide an optional convenience implementation of Locator.This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY. See http://www.saxproject.org for further information.
This class is available mainly for application writers, who can use it to make a persistent snapshot of a locator at any point during a document parse:
Locator locator; Locator startloc; public void setLocator (Locator locator) { // note the locator this.locator = locator; } public void startDocument () { // save the location of the start of the document // for future use. Locator startloc = new LocatorImpl(locator); }
Normally, parser writers will not use this class, since it is more efficient to provide location information only when requested, rather than constantly updating a Locator object.
- Since:
- SAX 1.0
- See Also:
Locator
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Constructor Summary
Constructors Constructor and Description LocatorImpl()
Zero-argument constructor.LocatorImpl(Locator locator)
Copy constructor.
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Method Summary
Methods Modifier and Type Method and Description int
getColumnNumber()
Return the saved column number (1-based).int
getLineNumber()
Return the saved line number (1-based).String
getPublicId()
Return the saved public identifier.String
getSystemId()
Return the saved system identifier.void
setColumnNumber(int columnNumber)
Set the column number for this locator (1-based).void
setLineNumber(int lineNumber)
Set the line number for this locator (1-based).void
setPublicId(String publicId)
Set the public identifier for this locator.void
setSystemId(String systemId)
Set the system identifier for this locator.
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Constructor Detail
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LocatorImpl
public LocatorImpl()
Zero-argument constructor.This will not normally be useful, since the main purpose of this class is to make a snapshot of an existing Locator.
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LocatorImpl
public LocatorImpl(Locator locator)
Copy constructor.Create a persistent copy of the current state of a locator. When the original locator changes, this copy will still keep the original values (and it can be used outside the scope of DocumentHandler methods).
- Parameters:
locator
- The locator to copy.
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Method Detail
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getPublicId
public String getPublicId()
Return the saved public identifier.- Specified by:
getPublicId
in interfaceLocator
- Returns:
- The public identifier as a string, or null if none is available.
- See Also:
Locator.getPublicId()
,setPublicId(java.lang.String)
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getSystemId
public String getSystemId()
Return the saved system identifier.- Specified by:
getSystemId
in interfaceLocator
- Returns:
- The system identifier as a string, or null if none is available.
- See Also:
Locator.getSystemId()
,setSystemId(java.lang.String)
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getLineNumber
public int getLineNumber()
Return the saved line number (1-based).- Specified by:
getLineNumber
in interfaceLocator
- Returns:
- The line number as an integer, or -1 if none is available.
- See Also:
Locator.getLineNumber()
,setLineNumber(int)
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getColumnNumber
public int getColumnNumber()
Return the saved column number (1-based).- Specified by:
getColumnNumber
in interfaceLocator
- Returns:
- The column number as an integer, or -1 if none is available.
- See Also:
Locator.getColumnNumber()
,setColumnNumber(int)
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setPublicId
public void setPublicId(String publicId)
Set the public identifier for this locator.- Parameters:
publicId
- The new public identifier, or null if none is available.- See Also:
getPublicId()
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setSystemId
public void setSystemId(String systemId)
Set the system identifier for this locator.- Parameters:
systemId
- The new system identifier, or null if none is available.- See Also:
getSystemId()
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setLineNumber
public void setLineNumber(int lineNumber)
Set the line number for this locator (1-based).- Parameters:
lineNumber
- The line number, or -1 if none is available.- See Also:
getLineNumber()
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setColumnNumber
public void setColumnNumber(int columnNumber)
Set the column number for this locator (1-based).- Parameters:
columnNumber
- The column number, or -1 if none is available.- See Also:
getColumnNumber()
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