org.plovr
Class ResourceJsInput

java.lang.Object
  org.plovr.AbstractJsInput
      org.plovr.ResourceJsInput

All Implemented Interfaces:

com.google.javascript.jscomp.SourceFile.Generator, JsInput

public class ResourceJsInput
extends AbstractJsInput

ResourceJsInput represents a JavaScript file loaded from a JAR, so it will never change, so its dependencies must only be read once.

Author:

bolinfest@gmail.com (Michael Bolin)

Nested Class Summary

Nested classes/interfaces inherited from interface org.plovr.JsInput

JsInput.CodeWithEtag

Field Summary

Fields inherited from class org.plovr.AbstractJsInput

provides, requires

Method Summary

java.lang.String	getCode()
JsInput.CodeWithEtag	getCodeWithEtag() If JsInput.supportsEtags() returns true, then this returns the value returned by JsInput.getCode() along with an ETag; otherwise, it throws an UnsupportedOperationException.
boolean	supportsEtags() Whether this input can calculate a stable ETag value for itself.

Methods inherited from class org.plovr.AbstractJsInput

calculateEtagFor, getName, getProvides, getRequires, getTemplateCode, hasInputChanged, isSoyFile, processProvidesAndRequires, toString

Methods inherited from class java.lang.Object

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

Method Detail

getCodeWithEtag

public JsInput.CodeWithEtag getCodeWithEtag()

Description copied from interface: JsInput

If JsInput.supportsEtags() returns true, then this returns the value returned by JsInput.getCode() along with an ETag; otherwise, it throws an UnsupportedOperationException.

This is generally used as a performance optimization to prevent plovr from going to disk twice: once to read the code for JsInput.getCode() and then again to read the code and calculate its ETag. This ensures that the code and ETag are produced atomically.

Specified by:

getCodeWithEtag in interface JsInput

Overrides:

getCodeWithEtag in class AbstractJsInput

getCode

public java.lang.String getCode()

Specified by:

getCode in interface com.google.javascript.jscomp.SourceFile.Generator

Specified by:

getCode in interface JsInput

Specified by:

getCode in class AbstractJsInput

Returns:

JavaScript code

supportsEtags

public boolean supportsEtags()

Description copied from interface: JsInput

Whether this input can calculate a stable ETag value for itself.

Specified by:

supportsEtags in interface JsInput

Overrides:

supportsEtags in class AbstractJsInput

See Also:

JsInput.getCodeWithEtag()