File	Doc	Category	Size	Date	Package
Extension.java	API Doc	Glassfish v2 API	10925	Fri May 04 22:32:30 BST 2007	org.apache.catalina.util

Extension

• java.lang.Object

Fields Summary
private String	extensionName The name of the optional package being made available, or required.
private String	implementationURL The URL from which the most recent version of this optional package can be obtained if it is not already installed.
private String	implementationVendor The name of the company or organization that produced this implementation of this optional package.
private String	implementationVendorId The unique identifier of the company that produced the optional package contained in this JAR file.
private String	implementationVersion The version number (dotted decimal notation) for this implementation of the optional package.
private String	specificationVendor The name of the company or organization that originated the specification to which this optional package conforms.
private String	specificationVersion The version number (dotted decimal notation) of the specification to which this optional package conforms.
private boolean	fulfilled fulfilled is true if all the required extension dependencies have been satisfied

Constructors Summary

Methods Summary
public java.lang.String	getExtensionName() return (this.extensionName);
public java.lang.String	getImplementationURL() return (this.implementationURL);
public java.lang.String	getImplementationVendor() return (this.implementationVendor);
public java.lang.String	getImplementationVendorId() return (this.implementationVendorId);
public java.lang.String	getImplementationVersion() return (this.implementationVersion);
public java.lang.String	getSpecificationVendor() return (this.specificationVendor);
public java.lang.String	getSpecificationVersion() return (this.specificationVersion);
public java.lang.String	getUniqueId() UniqueId created by combining the extension name and implementation version. return this.extensionName + this.implementationVersion;
public boolean	isCompatibleWith(org.apache.catalina.util.Extension required) Return true if the specified Extension (which represents an optional package required by this application) is satisfied by this Extension (which represents an optional package that is already installed. Otherwise, return false. param required Extension of the required optional package // Extension Name must match if (extensionName == null) return (false); if (!extensionName.equals(required.getExtensionName())) return (false); // Available specification version must be >= required if (!isNewer(specificationVersion, required.getSpecificationVersion())) return (false); // Implementation Vendor ID must match if (implementationVendorId == null) return (false); if (!implementationVendorId.equals(required.getImplementationVendorId())) return (false); // Implementation version must be >= required if (!isNewer(implementationVersion, required.getImplementationVersion())) return (false); // This available optional package satisfies the requirements return (true);
public boolean	isFulfilled() return fulfilled;
private boolean	isNewer(java.lang.String first, java.lang.String second) Return true if the first version number is greater than or equal to the second; otherwise return false. param first First version number (dotted decimal) param second Second version number (dotted decimal) exception NumberFormatException on a malformed version number if ((first == null) || (second == null)) return (false); if (first.equals(second)) return (true); StringTokenizer fTok = new StringTokenizer(first, ".", true); StringTokenizer sTok = new StringTokenizer(second, ".", true); int fVersion = 0; int sVersion = 0; while (fTok.hasMoreTokens() || sTok.hasMoreTokens()) { if (fTok.hasMoreTokens()) fVersion = Integer.parseInt(fTok.nextToken()); else fVersion = 0; if (sTok.hasMoreTokens()) sVersion = Integer.parseInt(sTok.nextToken()); else sVersion = 0; if (fVersion < sVersion) return (false); else if (fVersion > sVersion) return (true); if (fTok.hasMoreTokens()) // Swallow the periods fTok.nextToken(); if (sTok.hasMoreTokens()) sTok.nextToken(); } return (true); // Exact match
public void	setExtensionName(java.lang.String extensionName) if (extensionName != null) { this.extensionName = extensionName.trim(); }
public void	setFulfilled(boolean fulfilled) this.fulfilled = fulfilled;
public void	setImplementationURL(java.lang.String implementationURL) this.implementationURL = implementationURL;
public void	setImplementationVendor(java.lang.String implementationVendor) this.implementationVendor = implementationVendor;
public void	setImplementationVendorId(java.lang.String implementationVendorId) this.implementationVendorId = implementationVendorId;
public void	setImplementationVersion(java.lang.String implementationVersion) if (implementationVersion != null) { this.implementationVersion = implementationVersion.trim(); }
public void	setSpecificationVendor(java.lang.String specificationVendor) this.specificationVendor = specificationVendor;
public void	setSpecificationVersion(java.lang.String specificationVersion) this.specificationVersion = specificationVersion;
public java.lang.String	toString() Return a String representation of this object. StringBuffer sb = new StringBuffer("Extension["); sb.append(extensionName); if (implementationURL != null) { sb.append(", implementationURL="); sb.append(implementationURL); } if (implementationVendor != null) { sb.append(", implementationVendor="); sb.append(implementationVendor); } if (implementationVendorId != null) { sb.append(", implementationVendorId="); sb.append(implementationVendorId); } if (implementationVersion != null) { sb.append(", implementationVersion="); sb.append(implementationVersion); } if (specificationVendor != null) { sb.append(", specificationVendor="); sb.append(specificationVendor); } if (specificationVersion != null) { sb.append(", specificationVersion="); sb.append(specificationVersion); } sb.append("]"); return (sb.toString());