Package org.apache.cayenne.access.jdbc

Class RowDescriptorBuilder

java.lang.Object

org.apache.cayenne.access.jdbc.RowDescriptorBuilder

public class RowDescriptorBuilder
extends Object

A builder class that helps to assemble RowDescriptor instances from various types of inputs.

Since:

3.0

Field Summary

Fields

Modifier and Type	Field	Description
protected Function<String,String>	caseTransformer
protected ColumnDescriptor[]	columns
protected ResultSetMetaData	resultSetMetadata
protected Map<String,String>	typeOverrides
protected boolean	validateDuplicateColumnNames

Constructor Summary

Constructors

Constructor	Description
RowDescriptorBuilder()

Method Summary

Modifier and Type	Method	Description
RowDescriptor	getDescriptor(ExtendedTypeMap typeMap)	Returns a RowDescriptor built based on the builder internal state.
boolean	isOverriden(String columnName)
RowDescriptorBuilder	mergeColumnsWithRsMetadata()
protected ColumnDescriptor[]	mergeResultSetAndPresetColumns()
RowDescriptorBuilder	overrideColumnType(String columnName, String type)
RowDescriptorBuilder	setColumns(ColumnDescriptor[] columns)	Sets an explicit set of columns.
RowDescriptorBuilder	setResultSet(ResultSet resultSet)
RowDescriptorBuilder	useLowercaseColumnNames()
RowDescriptorBuilder	useUppercaseColumnNames()
RowDescriptorBuilder	validateDuplicateColumnNames()	Validate and report duplicate names of columns.

Methods inherited from class java.lang.Object

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

Field Details

columns

protected ColumnDescriptor[] columns

resultSetMetadata

protected ResultSetMetaData resultSetMetadata

caseTransformer

protected Function<String,String> caseTransformer

typeOverrides

protected Map<String,String> typeOverrides

validateDuplicateColumnNames

protected boolean validateDuplicateColumnNames

Constructor Details

RowDescriptorBuilder

public RowDescriptorBuilder()

Method Details

getDescriptor

public RowDescriptor getDescriptor(ExtendedTypeMap typeMap)
                            throws SQLException,
IllegalStateException

Returns a RowDescriptor built based on the builder internal state.

Throws:

SQLException

IllegalStateException

mergeResultSetAndPresetColumns

protected ColumnDescriptor[] mergeResultSetAndPresetColumns()
                                                     throws SQLException

Returns:

array of columns for ResultSet with overriding ColumnDescriptors from 'columns' Note: column will be overlooked, if column name is empty

Throws:

SQLException

setColumns

public RowDescriptorBuilder setColumns(ColumnDescriptor[] columns)

Sets an explicit set of columns. Note that the array passed as an argument can later be modified by the build to enforce column capitalization policy and columns Java types overrides.

setResultSet

public RowDescriptorBuilder setResultSet(ResultSet resultSet)
                                  throws SQLException

Throws:

SQLException

useLowercaseColumnNames

public RowDescriptorBuilder useLowercaseColumnNames()

useUppercaseColumnNames

public RowDescriptorBuilder useUppercaseColumnNames()

overrideColumnType

public RowDescriptorBuilder overrideColumnType(String columnName,
 String type)

validateDuplicateColumnNames

public RowDescriptorBuilder validateDuplicateColumnNames()

Validate and report duplicate names of columns.

Returns:

this builder

isOverriden

public boolean isOverriden(String columnName)

mergeColumnsWithRsMetadata

public RowDescriptorBuilder mergeColumnsWithRsMetadata()