com.orientechnologies.orient.core.sql

Class OSQLEngine

java.lang.Object

com.orientechnologies.orient.core.sql.OSQLEngine

public class OSQLEngine
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected static OSQLEngine	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	OSQLEngine()

Method Summary

Modifier and Type	Method and Description
static Object	foreachRecord(OCallable<Object,OIdentifiable> iCallable, Object iCurrent, OCommandContext iContext)
static OCollate	getCollate(String name)
static Iterator<OCollateFactory>	getCollateFactories()
static Set<String>	getCollateNames() Iterates on all factories and append all collate names.
OCommandExecutor	getCommand(String candidate)
static Iterator<OCommandExecutorSQLFactory>	getCommandFactories()
static Set<String>	getCommandNames() Iterates on all factories and append all command names.
OSQLFunction	getFunction(String iFunctionName)
static Iterator<OSQLFunctionFactory>	getFunctionFactories()
static Set<String>	getFunctionNames() Iterates on all factories and append all function names.
static OSQLEngine	getInstance()
static OSQLMethod	getMethod(String iMethodName)
static Iterator<OSQLMethodFactory>	getMethodFactories()
static Set<String>	getMethodNames()
static Iterator<OQueryOperatorFactory>	getOperatorFactories()
OQueryOperator[]	getRecordOperators()
static OStatement	parse(String query, ODatabaseDocumentInternal db)
OSQLFilter	parseCondition(String iText, OCommandContext iContext, String iFilterKeyword)
static OOrBlock	parsePredicate(String predicate)
Set<OIdentifiable>	parseRIDTarget(ODatabaseDocument database, String iTarget, OCommandContext iContext, Map<Object,Object> iArgs)
static List<OStatement>	parseScript(InputStream script, ODatabaseDocumentInternal db)
static List<OStatement>	parseScript(String script, ODatabaseDocumentInternal db)
static OSecurityResourceSegment	parseSecurityResource(String exp)
OSQLTarget	parseTarget(String iText, OCommandContext iContext)
void	registerFunction(String iName, Class<? extends OSQLFunction> iFunctionClass)
void	registerFunction(String iName, OSQLFunction iFunction)
static void	registerOperator(OQueryOperator iOperator)
static void	scanForPlugins() Scans for factory plug-ins on the application class path.
void	unregisterFunction(String iName)

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

protected static final OSQLEngine INSTANCE

Constructor Detail

OSQLEngine

protected OSQLEngine()

Method Detail

parse

public static OStatement parse(String query,
                               ODatabaseDocumentInternal db)

parseScript

public static List<OStatement> parseScript(String script,
                                           ODatabaseDocumentInternal db)

parseScript

public static List<OStatement> parseScript(InputStream script,
                                           ODatabaseDocumentInternal db)

parsePredicate

public static OOrBlock parsePredicate(String predicate)
                               throws OCommandSQLParsingException

Throws:

OCommandSQLParsingException

parseSecurityResource

public static OSecurityResourceSegment parseSecurityResource(String exp)

registerOperator

public static void registerOperator(OQueryOperator iOperator)

getFunctionFactories

public static Iterator<OSQLFunctionFactory> getFunctionFactories()

Returns:

Iterator of all function factories

getMethodFactories

public static Iterator<OSQLMethodFactory> getMethodFactories()

getCollateFactories

public static Iterator<OCollateFactory> getCollateFactories()

Returns:

Iterator of all function factories

getOperatorFactories

public static Iterator<OQueryOperatorFactory> getOperatorFactories()

Returns:

Iterator of all operator factories

getCommandFactories

public static Iterator<OCommandExecutorSQLFactory> getCommandFactories()

Returns:

Iterator of all command factories

getFunctionNames

public static Set<String> getFunctionNames()

Iterates on all factories and append all function names.

Returns:

Set of all function names.

getMethodNames

public static Set<String> getMethodNames()

getCollateNames

public static Set<String> getCollateNames()

Iterates on all factories and append all collate names.

Returns:

Set of all colate names.

getCommandNames

public static Set<String> getCommandNames()

Iterates on all factories and append all command names.

Returns:

Set of all command names.

scanForPlugins

public static void scanForPlugins()

Scans for factory plug-ins on the application class path. This method is needed because the application class path can theoretically change, or additional plug-ins may become available. Rather than re-scanning the classpath on every invocation of the API, the class path is scanned automatically only on the first invocation. Clients can call this method to prompt a re-scan. Thus this method need only be invoked by sophisticated applications which dynamically make new plug-ins available at runtime.

foreachRecord

public static Object foreachRecord(OCallable<Object,OIdentifiable> iCallable,
                                   Object iCurrent,
                                   OCommandContext iContext)

getInstance

public static OSQLEngine getInstance()

getCollate

public static OCollate getCollate(String name)

getMethod

public static OSQLMethod getMethod(String iMethodName)

getRecordOperators

public OQueryOperator[] getRecordOperators()

registerFunction

public void registerFunction(String iName,
                             OSQLFunction iFunction)

registerFunction

public void registerFunction(String iName,
                             Class<? extends OSQLFunction> iFunctionClass)

getFunction

public OSQLFunction getFunction(String iFunctionName)

unregisterFunction

public void unregisterFunction(String iName)

getCommand

public OCommandExecutor getCommand(String candidate)

parseCondition

public OSQLFilter parseCondition(String iText,
                                 OCommandContext iContext,
                                 String iFilterKeyword)

parseTarget

public OSQLTarget parseTarget(String iText,
                              OCommandContext iContext)

parseRIDTarget

public Set<OIdentifiable> parseRIDTarget(ODatabaseDocument database,
                                         String iTarget,
                                         OCommandContext iContext,
                                         Map<Object,Object> iArgs)