Package org.apache.cayenne.access.translator.ejbql

Class EJBQLTranslationContext

java.lang.Object

org.apache.cayenne.access.translator.ejbql.EJBQLTranslationContext

public class EJBQLTranslationContext
extends Object

A context used for translating of EJBQL to SQL.

Since:

3.0

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,Object>	namedParameters
protected Map<Integer,Object>	positionalParameters

Constructor Summary

Constructors

Constructor	Description
EJBQLTranslationContext(EntityResolver entityResolver, EJBQLQuery query, EJBQLCompiledExpression compiledExpression, EJBQLTranslatorFactory translatorFactory, QuotingStrategy quotingStrategy)

Method Summary

Modifier and Type	Method	Description
EJBQLTranslationContext	append(char chunk)	Appends a piece of SQL to the internal buffer.
EJBQLTranslationContext	append(String chunk)	Appends a piece of SQL to the internal buffer.
ClassDescriptor	getEntityDescriptor(String id)	Looks up entity descriptor for an identifier that can be a compiled expression id or one of the aliases.
QueryMetadata	getMetadata()
SQLTemplate	getQuery()
QuotingStrategy	getQuotingStrategy()
protected String	getTableAlias(String idPath, String tableName)	Retrieves a SQL alias for the combination of EJBQL id variable and a table name.
boolean	isAppendingResultColumns()
boolean	isCaseInsensitive()
boolean	isUsingAliases()
String	makeDistinctMarker()
void	onSubselect()
void	pushMarker(String marker, boolean reset)	Switches the current buffer to a marked buffer, pushing the currently used buffer on the stack.
void	setCaseInsensitive(boolean caseInsensitive)
void	setUsingAliases(boolean useAliases)

Methods inherited from class java.lang.Object

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

Field Details

namedParameters

protected Map<String,Object> namedParameters

positionalParameters

protected Map<Integer,Object> positionalParameters

Constructor Details

EJBQLTranslationContext

public EJBQLTranslationContext(EntityResolver entityResolver,
 EJBQLQuery query,
 EJBQLCompiledExpression compiledExpression,
 EJBQLTranslatorFactory translatorFactory,
 QuotingStrategy quotingStrategy)

Method Details

getQuery

public SQLTemplate getQuery()

getMetadata

public QueryMetadata getMetadata()

getEntityDescriptor

public ClassDescriptor getEntityDescriptor(String id)

Looks up entity descriptor for an identifier that can be a compiled expression id or one of the aliases.

pushMarker

public void pushMarker(String marker,
 boolean reset)

Switches the current buffer to a marked buffer, pushing the currently used buffer on the stack. Note that this can be done even before the marker is inserted in the main buffer. If "reset" is true, any previous contents of the marker are cleared.

append

public EJBQLTranslationContext append(String chunk)

Appends a piece of SQL to the internal buffer.

append

public EJBQLTranslationContext append(char chunk)

Appends a piece of SQL to the internal buffer.

getTableAlias

protected String getTableAlias(String idPath,
 String tableName)

Retrieves a SQL alias for the combination of EJBQL id variable and a table name. If such alias hasn't been used, it is created on the fly.

isAppendingResultColumns

public boolean isAppendingResultColumns()

isUsingAliases

public boolean isUsingAliases()

setUsingAliases

public void setUsingAliases(boolean useAliases)

isCaseInsensitive

public boolean isCaseInsensitive()

setCaseInsensitive

public void setCaseInsensitive(boolean caseInsensitive)

getQuotingStrategy

public QuotingStrategy getQuotingStrategy()

onSubselect

public void onSubselect()

makeDistinctMarker

public String makeDistinctMarker()