org.apache.metamodel.jdbc.dialects

Class OracleQueryRewriter

java.lang.Object

org.apache.metamodel.jdbc.dialects.AbstractQueryRewriter

org.apache.metamodel.jdbc.dialects.DefaultQueryRewriter

org.apache.metamodel.jdbc.dialects.OffsetFetchQueryRewriter

org.apache.metamodel.jdbc.dialects.OracleQueryRewriter

All Implemented Interfaces:

IQueryRewriter

public class OracleQueryRewriter
extends OffsetFetchQueryRewriter

Query rewriter for Oracle

Field Summary

Fields

Modifier and Type	Field and Description
static int	FIRST_FETCH_SUPPORTING_VERSION

Constructor Summary

Constructors

Constructor and Description
OracleQueryRewriter(JdbcDataContext dataContext)

Method Summary

Modifier and Type	Method and Description
ColumnType	getColumnType(int jdbcType, String nativeType, Integer columnSize) Gets the column type for a specific JDBC type (as defined in Types), native type name and column size.
String	rewriteColumnType(ColumnType columnType, Integer columnSize) Rewrites the name of a column type, as it is written in CREATE TABLE statements.
String	rewriteFilterItem(FilterItem item)

Methods inherited from class org.apache.metamodel.jdbc.dialects.OffsetFetchQueryRewriter

isFirstRowSupported, isMaxRowsSupported, rewriteQuery

Methods inherited from class org.apache.metamodel.jdbc.dialects.DefaultQueryRewriter

beforeRewrite, escapeQuotes, isAggregateFunctionSupported, isPrimaryKeySupported, isScalarFunctionSupported, needsQuoting, rewriteFilterItemWithOperandLiteral, rewriteTimestamp

Methods inherited from class org.apache.metamodel.jdbc.dialects.AbstractQueryRewriter

getDataContext, getResultSetValue, isSchemaIncludedInColumnPaths, isSupportedVersion, isTransactional, rewriteColumnTypeInternal, rewriteFromClause, rewriteFromItem, rewriteFromItem, rewriteGroupByClause, rewriteGroupByItem, rewriteHavingClause, rewriteOrderByClause, rewriteOrderByItem, rewriteSelectClause, rewriteSelectItem, rewriteWhereClause, setStatementParameter, toTime, toTimestamp

Methods inherited from class java.lang.Object

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

Field Detail

FIRST_FETCH_SUPPORTING_VERSION

public static final int FIRST_FETCH_SUPPORTING_VERSION

See Also:

Constant Field Values

Constructor Detail

OracleQueryRewriter

public OracleQueryRewriter(JdbcDataContext dataContext)

Method Detail

getColumnType

public ColumnType getColumnType(int jdbcType,
                                String nativeType,
                                Integer columnSize)

Description copied from interface: IQueryRewriter

Gets the column type for a specific JDBC type (as defined in Types), native type name and column size.

Specified by:

getColumnType in interface IQueryRewriter

Overrides:

getColumnType in class AbstractQueryRewriter

Returns:

rewriteColumnType

public String rewriteColumnType(ColumnType columnType,
                                Integer columnSize)

Description copied from interface: IQueryRewriter

Rewrites the name of a column type, as it is written in CREATE TABLE statements. Some databases dont support all column types, or have different names for them. The implementation of this method will do that conversion.

Specified by:

rewriteColumnType in interface IQueryRewriter

Overrides:

rewriteColumnType in class DefaultQueryRewriter

Parameters:

columnType - the (non-null) ColumnType to rewrite

columnSize - the (possibly null) column size that may or may not have been specified

Returns:

rewriteFilterItem

public String rewriteFilterItem(FilterItem item)

Specified by:

rewriteFilterItem in interface IQueryRewriter

Overrides:

rewriteFilterItem in class DefaultQueryRewriter