org.apache.ignite.internal.processors.query

Interface GridQueryTypeDescriptor

public interface GridQueryTypeDescriptor

Value descriptor which allows to extract fields from value object of given type.

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,GridQueryIndexDescriptor>	indexes() Gets indexes for this type.
Class<?>	keyClass() Gets key class.
Map<String,Class<?>>	keyFields() Gets mapping from keys field name to its type.
String	name() Gets type name which uniquely identifies this type.
<T> T	value(Object obj, String field) Gets field value for given object.
Class<?>	valueClass() Gets value class.
Map<String,Class<?>>	valueFields() Gets mapping from values field name to its type.
boolean	valueTextIndex() Returns true if string representation of value should be indexed as text.

Method Detail

name

String name()

Gets type name which uniquely identifies this type.

Returns:

Type name which uniquely identifies this type.

valueFields

Map<String,Class<?>> valueFields()

Gets mapping from values field name to its type.

Returns:

Fields that can be indexed, participate in queries and can be queried using method.

keyFields

Map<String,Class<?>> keyFields()

Gets mapping from keys field name to its type.

Returns:

Fields that can be indexed, participate in queries and can be queried.

value

<T> T value(Object obj,
          String field)
        throws IgniteCheckedException

Gets field value for given object.

Parameters:

obj - Object to get field value from.

field - Field name.

Returns:

Value for given field.

Throws:

IgniteCheckedException - If failed.

indexes

Map<String,GridQueryIndexDescriptor> indexes()

Gets indexes for this type.

Returns:

Indexes for this type.

valueClass

Class<?> valueClass()

Gets value class.

Returns:

Value class.

keyClass

Class<?> keyClass()

Gets key class.

Returns:

Key class.

valueTextIndex

boolean valueTextIndex()

Returns true if string representation of value should be indexed as text.

Returns:

If string representation of value should be full-text indexed.