MergedResult (OpenJPA 1.0.4 API)

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org.apache.openjpa.jdbc.sql
Class MergedResult

java.lang.Object
  org.apache.openjpa.jdbc.sql.MergedResult

All Implemented Interfaces:: Result, Closeable

public class MergedResult
extends Object
implements Result
extends Object
implements Result

Result that merges multiple result delegates. Support exists for maintaining ordering of the internally-held results, provided that each of the individual results is itself ordered.

Author:: Abe White

Nested Class Summary
`static interface`	`MergedResult.ResultComparator` Comparator for ordering result rows.

Constructor Summary
`MergedResult(Result[] res)` Constructor; supply delegates.
`MergedResult(Result[] res, MergedResult.ResultComparator comp)` Constructor; supply delegates and comparator for ordering results.

Method Summary
`boolean`	`absolute(int row)` Move to the given 0-based row in the result, or return false if the row does not exist.
`void`	`close()` Free the resources used by this result; do not close the SQL connection.
`boolean`	`contains(Column col, Joins joins)` Return true if the given column is available in the result.
`boolean`	`contains(Object obj)` Return true if the given id or column is available in the result.
`boolean`	`containsAll(Column[] cols, Joins joins)` Return true if all the given columns are available in the result.
`boolean`	`containsAll(Object[] objs)` Return true if all the given ids or columns are available in the result.
`void`	`endDataRequest()` Ends a data request.
`Array`	`getArray(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Array`	`getArray(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`InputStream`	`getAsciiStream(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`InputStream`	`getAsciiStream(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`ClassMapping`	`getBaseMapping()` If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row.
`BigDecimal`	`getBigDecimal(Column col, Joins joins)` Return the value stored in the given column.
`BigDecimal`	`getBigDecimal(Object obj)` Return the value stored in the given column or id.
`BigInteger`	`getBigInteger(Column col, Joins joins)` Return the value stored in the given column.
`BigInteger`	`getBigInteger(Object obj)` Return the value stored in the given column or id.
`InputStream`	`getBinaryStream(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`InputStream`	`getBinaryStream(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`Blob`	`getBlob(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Blob`	`getBlob(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`boolean`	`getBoolean(Column col, Joins joins)` Return the value stored in the given column.
`boolean`	`getBoolean(Object obj)` Return the value stored in the given column or id.
`byte`	`getByte(Column col, Joins joins)` Return the value stored in the given column.
`byte`	`getByte(Object obj)` Return the value stored in the given column or id.
`byte[]`	`getBytes(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`byte[]`	`getBytes(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`Calendar`	`getCalendar(Column col, Joins joins)` Return the value stored in the given column.
`Calendar`	`getCalendar(Object obj)` Return the value stored in the given column or id.
`char`	`getChar(Column col, Joins joins)` Return the value stored in the given column.
`char`	`getChar(Object obj)` Return the value stored in the given column or id.
`Reader`	`getCharacterStream(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Reader`	`getCharacterStream(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`Clob`	`getClob(Column col, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Clob`	`getClob(Object obj)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`Date`	`getDate(Column col, Calendar cal, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Date`	`getDate(Column col, Joins joins)` Return the value stored in the given column.
`Date`	`getDate(Object obj)` Return the value stored in the given column or id.
`Date`	`getDate(Object obj, Calendar cal)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`double`	`getDouble(Column col, Joins joins)` Return the value stored in the given column.
`double`	`getDouble(Object obj)` Return the value stored in the given column or id.
`Object`	`getEager(FieldMapping key)` The eager result for the given key, or null if none.
`float`	`getFloat(Column col, Joins joins)` Return the value stored in the given column.
`float`	`getFloat(Object obj)` Return the value stored in the given column or id.
`int`	`getInt(Column col, Joins joins)` Return the value stored in the given column.
`int`	`getInt(Object obj)` Return the value stored in the given column or id.
`Locale`	`getLocale(Column col, Joins joins)` Return the value stored in the given column.
`Locale`	`getLocale(Object obj)` Return the value stored in the given column or id.
`long`	`getLong(Column col, Joins joins)` Return the value stored in the given column.
`long`	`getLong(Object obj)` Return the value stored in the given column or id.
`Number`	`getNumber(Column col, Joins joins)` Return the value stored in the given column.
`Number`	`getNumber(Object obj)` Return the value stored in the given column or id.
`Object`	`getObject(Column col, Object arg, Joins joins)` Return the value stored in the given column.
`Object`	`getObject(Object obj, int metaType, Object arg)` Return the value stored in the given column or id.
`Ref`	`getRef(Column col, Map map, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Ref`	`getRef(Object obj, Map map)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`short`	`getShort(Column col, Joins joins)` Return the value stored in the given column.
`short`	`getShort(Object obj)` Return the value stored in the given column or id.
`Object`	`getSQLObject(Column col, Map map, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Object`	`getSQLObject(Object obj, Map map)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`String`	`getString(Column col, Joins joins)` Return the value stored in the given column.
`String`	`getString(Object obj)` Return the value stored in the given column or id.
`Time`	`getTime(Column col, Calendar cal, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Time`	`getTime(Object obj, Calendar cal)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`Timestamp`	`getTimestamp(Column col, Calendar cal, Joins joins)` Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
`Timestamp`	`getTimestamp(Object obj, Calendar cal)` Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
`int`	`indexOf()` The index of the select within the UNION that the current row corresponds to, or 0.
`boolean`	`isLocking()` If true, then any results loaded from this Result will be locked in the database.
`Object`	`load(ClassMapping mapping, JDBCStore store, JDBCFetchConfiguration fetch)` Load a pc object using the given store manager.
`Object`	`load(ClassMapping mapping, JDBCStore store, JDBCFetchConfiguration fetch, Joins joins)` Load a pc object using the given store manager.
`Joins`	`newJoins()` Return a new joins instance to use for traversing to related data.
`boolean`	`next()` Advance to the next row, or return false if there are no more rows in the result.
`void`	`pushBack()` Push back the last result.
`void`	`putEager(FieldMapping key, Object res)` The eager result for the given key, or null if none.
`void`	`setBaseMapping(ClassMapping mapping)` If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row.
`int`	`size()` Return the number of rows in this result.
`void`	`startDataRequest(Object mapping)` Informs this receiver about the application element for which a subsequent data request will be made.
`boolean`	`supportsRandomAccess()` Return true if the result supports random access.
`boolean`	`wasNull()` Return true if the last value fetched was null.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

MergedResult

public MergedResult(Result[] res)

Constructor; supply delegates.

MergedResult

public MergedResult(Result[] res,
                    MergedResult.ResultComparator comp)

Constructor; supply delegates and comparator for ordering results.

Method Detail