org.apache.ignite.configuration

Class CacheQueryConfiguration

java.lang.Object

org.apache.ignite.configuration.CacheQueryConfiguration

All Implemented Interfaces:

Serializable

public class CacheQueryConfiguration
extends Object
implements Serializable

Query configuration object.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CacheQueryConfiguration() Default constructor.
CacheQueryConfiguration(CacheQueryConfiguration cfg)

Method Summary

Methods

Modifier and Type	Method and Description
QueryTypeResolver	getTypeResolver() Gets query type resolver.
boolean	isEscapeAll() If true, then table name and all column names in 'create table' SQL generated for SQL engine are escaped with double quotes.
boolean	isIndexFixedTyping() This flag essentially controls whether all values of the same type have identical key type.
boolean	isIndexPrimitiveKey() Gets flag indicating whether SQL engine should index by key in cases where key is primitive type
boolean	isIndexPrimitiveValue() Gets flag indicating whether SQL engine should index by value in cases where value is primitive type
void	setEscapeAll(boolean escapeAll) If true, then table name and all column names in 'create table' SQL generated for SQL engine are escaped with double quotes.
void	setIndexFixedTyping(boolean idxFixedTyping) This flag essentially controls whether key type is going to be identical for all values of the same type.
void	setIndexPrimitiveKey(boolean idxPrimitiveKey) Sets flag indicating whether SQL engine should index by key in cases where key is primitive type.
void	setIndexPrimitiveValue(boolean idxPrimitiveVal) Sets flag indexing whether SQL engine should index by value in cases where value is primitive type.
void	setTypeResolver(QueryTypeResolver typeRslvr) Sets query type resolver.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheQueryConfiguration

public CacheQueryConfiguration()

Default constructor.

CacheQueryConfiguration

public CacheQueryConfiguration(CacheQueryConfiguration cfg)

Parameters:

cfg - Configuration to copy.

Method Detail

getTypeResolver

public QueryTypeResolver getTypeResolver()

Gets query type resolver.

Returns:

Query type resolver.

setTypeResolver

public void setTypeResolver(QueryTypeResolver typeRslvr)

Sets query type resolver.

Parameters:

typeRslvr - Query type resolver.

isIndexPrimitiveKey

public boolean isIndexPrimitiveKey()

Gets flag indicating whether SQL engine should index by key in cases where key is primitive type

Returns:

True if primitive keys should be indexed.

setIndexPrimitiveKey

public void setIndexPrimitiveKey(boolean idxPrimitiveKey)

Sets flag indicating whether SQL engine should index by key in cases where key is primitive type.

Parameters:

idxPrimitiveKey - True if primitive keys should be indexed.

isIndexPrimitiveValue

public boolean isIndexPrimitiveValue()

Gets flag indicating whether SQL engine should index by value in cases where value is primitive type

Returns:

True if primitive values should be indexed.

setIndexPrimitiveValue

public void setIndexPrimitiveValue(boolean idxPrimitiveVal)

Sets flag indexing whether SQL engine should index by value in cases where value is primitive type.

Parameters:

idxPrimitiveVal - True if primitive values should be indexed.

isIndexFixedTyping

public boolean isIndexFixedTyping()

This flag essentially controls whether all values of the same type have identical key type.

If false, SQL engine will store all keys in BINARY form to make it possible to store the same value type with different key types. If true, key type will be converted to respective SQL type if it is possible, hence, improving performance of queries.

Setting this value to false also means that '_key' column cannot be indexed and cannot participate in query where clauses. The behavior of using '_key' column in where clauses with this flag set to false is undefined.

Returns:

True if SQL engine should try to convert values to their respective SQL types for better performance.

setIndexFixedTyping

public void setIndexFixedTyping(boolean idxFixedTyping)

This flag essentially controls whether key type is going to be identical for all values of the same type.

If false, SQL engine will store all keys in BINARY form to make it possible to store the same value type with different key types. If true, key type will be converted to respective SQL type if it is possible, which may provide significant performance boost.

Parameters:

idxFixedTyping - True if SQL engine should try to convert values to their respective SQL types for better performance.

isEscapeAll

public boolean isEscapeAll()

If true, then table name and all column names in 'create table' SQL generated for SQL engine are escaped with double quotes. This flag should be set if table name of column name is H2 reserved word or is not valid H2 identifier (e.g. contains space or hyphen).

Note if this flag is set then table and column name in SQL queries also must be escaped with double quotes.

Returns:

Flag value.

setEscapeAll

public void setEscapeAll(boolean escapeAll)

If true, then table name and all column names in 'create table' SQL generated for SQL engine are escaped with double quotes. This flag should be set if table name of column name is H2 reserved word or is not valid H2 identifier (e.g. contains space or hyphen).

Note if this flag is set then table and column name in SQL queries also must be escaped with double quotes.

Parameters:

escapeAll - Flag value.