Package org.apache.metamodel.fixedwidth

Class FixedWidthDataContext

java.lang.Object

org.apache.metamodel.AbstractDataContext

org.apache.metamodel.QueryPostprocessDataContext

org.apache.metamodel.fixedwidth.FixedWidthDataContext

All Implemented Interfaces:

org.apache.metamodel.convert.HasReadTypeConverters, org.apache.metamodel.DataContext

public class FixedWidthDataContext
extends org.apache.metamodel.QueryPostprocessDataContext

DataContext implementation for fixed width value files.

Field Summary

Fields inherited from class org.apache.metamodel.QueryPostprocessDataContext

INFORMATION_SCHEMA_NAME, SYSTEM_PROPERTY_CREATE_DEFAULT_TABLE_ALIAS

Constructor Summary

Constructors

Constructor	Description
FixedWidthDataContext(File file, FixedWidthConfiguration configuration)
FixedWidthDataContext(org.apache.metamodel.util.Resource resource, FixedWidthConfiguration configuration)

Method Summary

Modifier and Type	Method	Description
FixedWidthConfiguration	getConfiguration()	Gets the Fixed width value configuration used.
protected org.apache.metamodel.schema.Schema	getMainSchema()
protected String	getMainSchemaName()
org.apache.metamodel.util.Resource	getResource()	Gets the resource being read
org.apache.metamodel.data.DataSet	materializeMainSchemaTable(org.apache.metamodel.schema.Table table, List<org.apache.metamodel.schema.Column> columns, int maxRows)

Methods inherited from class org.apache.metamodel.QueryPostprocessDataContext

addConverter, executeCountQuery, executePrimaryKeyLookupQuery, executeQuery, getDefaultSchemaName, getSchemaByNameInternal, getSchemaNamesInternal, isMainSchemaTable, isScalarFunctionMaterialized, materializeFromItem, materializeMainSchemaTable, materializeMainSchemaTable, materializeMainSchemaTableSelect, materializeTable

Methods inherited from class org.apache.metamodel.AbstractDataContext

compileQuery, executeQuery, executeQuery, getColumnByQualifiedLabel, getDefaultSchema, getSchemaByName, getSchemaNames, getSchemas, getTableByQualifiedLabel, isQualifiedPathDelim, onSchemaCacheRefreshed, parseQuery, query, refreshSchemas

Methods inherited from class java.lang.Object

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

Constructor Detail

FixedWidthDataContext

public FixedWidthDataContext(File file,
                             FixedWidthConfiguration configuration)

FixedWidthDataContext

public FixedWidthDataContext(org.apache.metamodel.util.Resource resource,
                             FixedWidthConfiguration configuration)

Method Detail

getConfiguration

public FixedWidthConfiguration getConfiguration()

Gets the Fixed width value configuration used.

Returns:

a fixed width configuration

getResource

public org.apache.metamodel.util.Resource getResource()

Gets the resource being read

Returns:

a Resource object

getMainSchema

protected org.apache.metamodel.schema.Schema getMainSchema()
                                                    throws org.apache.metamodel.MetaModelException

Specified by:

getMainSchema in class org.apache.metamodel.QueryPostprocessDataContext

Throws:

org.apache.metamodel.MetaModelException

getMainSchemaName

protected String getMainSchemaName()
                            throws org.apache.metamodel.MetaModelException

Specified by:

getMainSchemaName in class org.apache.metamodel.QueryPostprocessDataContext

Throws:

org.apache.metamodel.MetaModelException

materializeMainSchemaTable

public org.apache.metamodel.data.DataSet materializeMainSchemaTable(org.apache.metamodel.schema.Table table,
                                                                    List<org.apache.metamodel.schema.Column> columns,
                                                                    int maxRows)

Specified by:

materializeMainSchemaTable in class org.apache.metamodel.QueryPostprocessDataContext