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()