Top Description Fields Constructors Methods

org.eclipse.persistence.internal.helper

public Class JavaPlatform

Class Inheritance

extends Object

java.lang.Object
org.eclipse.persistence.internal.helper.JavaPlatform

Imports

java.sql.SQLException, .SQLXML, java.util.concurrent.ConcurrentHashMap, java.util.regex.Pattern

INTERNAL: JavaPlatform abstracts the version of the JDK we are using. It allows any operation which is dependent on JDK version to be called from a single place and then delegates the call to its JDKPlatform

Author: Tom Ware

Field Summary

Modifier and Type	Field and Description
private static final ConcurrentHashMap<Object, Pattern>	patternCache PERF: The like expression compiled Pattern objects are cached to avoid re-compilation on every usage.
private static final ConcurrentHashMap<Object, Pattern>	regexpPatternCache PERF: The regular expression compiled Pattern objects are cached to avoid re-compilation on every usage.

Constructor Summary

Access	Constructor and Description
public	JavaPlatform()

Method Summary

Modifier and Type	Method and Description
public static Boolean	conformLike(Object left, Object right) INTERNAL: An implementation of in memory queries with Like which uses the regular expression framework.
public static Boolean	conformRegexp(Object left, Object right) INTERNAL: An implementation of in memory queries with Regexp which uses the regular expression framework.
public static String	getStringAndFreeSQLXML(Object sqlXml) INTERNAL: Casts the passed object to SQLXML and calls getString and free methods
public static boolean	isSQLXML(Object object) INTERNAL: Indicates whether the passed object implements java.sql.SQLXML introduced in jdk 1.6

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

patternCache	back to summary
private static final ConcurrentHashMap<Object, Pattern> patternCache PERF: The like expression compiled Pattern objects are cached to avoid re-compilation on every usage.

regexpPatternCache	back to summary
private static final ConcurrentHashMap<Object, Pattern> regexpPatternCache PERF: The regular expression compiled Pattern objects are cached to avoid re-compilation on every usage.

Constructor Detail

JavaPlatform	back to summary
public JavaPlatform()

Method Detail

conformLike	back to summary
public static Boolean conformLike(Object left, Object right) INTERNAL: An implementation of in memory queries with Like which uses the regular expression framework.

conformRegexp	back to summary
public static Boolean conformRegexp(Object left, Object right) INTERNAL: An implementation of in memory queries with Regexp which uses the regular expression framework.

getStringAndFreeSQLXML	back to summary
public static String getStringAndFreeSQLXML(Object sqlXml) throws SQLException INTERNAL: Casts the passed object to SQLXML and calls getString and free methods

isSQLXML	back to summary
public static boolean isSQLXML(Object object) INTERNAL: Indicates whether the passed object implements java.sql.SQLXML introduced in jdk 1.6