QueryParameters (ClickHouse JDBC Bridge 2.0.5 API)

java.lang.Object
- ru.yandex.clickhouse.jdbcbridge.core.QueryParameters

```
public class QueryParameters
extends Object
```
This class defines parameters can be used along with query, to change behaviour of query exuection and result normalization.

Since:

2.0

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_BATCH_SIZE`
`static int`	`DEFAULT_FETCH_SIZE`
`static int`	`DEFAULT_MAX_ROWS`
`static int`	`DEFAULT_OFFSET`
`static int`	`DEFAULT_POSITION`
`static int`	`DEFAULT_TIMEOUT`
`static String`	`PARAM_BATCH_SIZE`
`static String`	`PARAM_CUSTOM_COLUMNS`
`static String`	`PARAM_DATASOURCE_COLUMN`
`static String`	`PARAM_DEBUG`
`static String`	`PARAM_FETCH_SIZE`
`static String`	`PARAM_MAX_ROWS`
`static String`	`PARAM_MUTATION`
`static String`	`PARAM_NO_CACHE`
`static String`	`PARAM_NULL_AS_DEFAULT`
`static String`	`PARAM_OFFSET`
`static String`	`PARAM_POSITION`
`static String`	`PARAM_TIMEOUT`
`static String`	`PARAM_USE_DATETIME`

Constructor Summary

Constructors
Constructor and Description

QueryParameters()

QueryParameters(io.vertx.core.json.JsonObject... params)

QueryParameters(String uri)

Constructors
Constructor and Description
`QueryParameters()`
`QueryParameters(io.vertx.core.json.JsonObject... params)`
`QueryParameters(String uri)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Map<String,String>`	`asVariables()`
`boolean`	`doNotUseCache()`
`int`	`getBatchSize()`
`int`	`getFetchSize()`
`int`	`getMaxRows()`
`int`	`getOffset()`
`<T> T`	`getParameterDefaultValue(String key, Class<T> type)`
`<T> T`	`getParameterValue(String key, Class<T> type)`
`int`	`getPosition()`
`int`	`getTimeout()`
`boolean`	`isDebug()`
`boolean`	`isMutation()`
`QueryParameters`	`merge(io.vertx.core.json.JsonObject p)`
`QueryParameters`	`merge(QueryParameters p)`
`QueryParameters`	`merge(String uri)`
`boolean`	`nullAsDefault()`
`boolean`	`showCustomColumns()`
`boolean`	`showDatasourceColumn()`
`io.vertx.core.json.JsonObject`	`toJson()`
`String`	`toQueryString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- PARAM_BATCH_SIZE
```
public static final String PARAM_BATCH_SIZE
```
  See Also:
  
  Constant Field Values
- PARAM_CUSTOM_COLUMNS
```
public static final String PARAM_CUSTOM_COLUMNS
```
  See Also:
  
  Constant Field Values
- PARAM_DATASOURCE_COLUMN
```
public static final String PARAM_DATASOURCE_COLUMN
```
  See Also:
  
  Constant Field Values
- PARAM_FETCH_SIZE
```
public static final String PARAM_FETCH_SIZE
```
  See Also:
  
  Constant Field Values
- PARAM_MAX_ROWS
```
public static final String PARAM_MAX_ROWS
```
  See Also:
  
  Constant Field Values
- PARAM_MUTATION
```
public static final String PARAM_MUTATION
```
  See Also:
  
  Constant Field Values
- PARAM_NO_CACHE
```
public static final String PARAM_NO_CACHE
```
  See Also:
  
  Constant Field Values
- PARAM_NULL_AS_DEFAULT
```
public static final String PARAM_NULL_AS_DEFAULT
```
  See Also:
  
  Constant Field Values
- PARAM_OFFSET
```
public static final String PARAM_OFFSET
```
  See Also:
  
  Constant Field Values
- PARAM_POSITION
```
public static final String PARAM_POSITION
```
  See Also:
  
  Constant Field Values
- PARAM_TIMEOUT
```
public static final String PARAM_TIMEOUT
```
  See Also:
  
  Constant Field Values
- PARAM_USE_DATETIME
```
public static final String PARAM_USE_DATETIME
```
  See Also:
  
  Constant Field Values
- PARAM_DEBUG
```
public static final String PARAM_DEBUG
```
  See Also:
  
  Constant Field Values
- DEFAULT_BATCH_SIZE
```
public static final int DEFAULT_BATCH_SIZE
```
  See Also:
  
  Constant Field Values
- DEFAULT_FETCH_SIZE
```
public static final int DEFAULT_FETCH_SIZE
```
  See Also:
  
  Constant Field Values
- DEFAULT_MAX_ROWS
```
public static final int DEFAULT_MAX_ROWS
```
  See Also:
  
  Constant Field Values
- DEFAULT_OFFSET
```
public static final int DEFAULT_OFFSET
```
  See Also:
  
  Constant Field Values
- DEFAULT_POSITION
```
public static final int DEFAULT_POSITION
```
  See Also:
  
  Constant Field Values
- DEFAULT_TIMEOUT
```
public static final int DEFAULT_TIMEOUT
```
  See Also:
  
  Constant Field Values

Constructor Detail

QueryParameters
```
public QueryParameters()
```

QueryParameters
```
public QueryParameters(String uri)
```

QueryParameters

public QueryParameters(io.vertx.core.json.JsonObject... params)

Method Detail

merge

public QueryParameters merge(QueryParameters p)

merge

public QueryParameters merge(io.vertx.core.json.JsonObject p)

merge

public QueryParameters merge(String uri)

getBatchSize
```
public int getBatchSize()
```

getFetchSize
```
public int getFetchSize()
```

getMaxRows
```
public int getMaxRows()
```

isMutation
```
public boolean isMutation()
```

doNotUseCache
```
public boolean doNotUseCache()
```

nullAsDefault
```
public boolean nullAsDefault()
```

getOffset
```
public int getOffset()
```

getPosition
```
public int getPosition()
```

getTimeout
```
public int getTimeout()
```

showDatasourceColumn
```
public boolean showDatasourceColumn()
```

showCustomColumns
```
public boolean showCustomColumns()
```

isDebug
```
public boolean isDebug()
```

getParameterDefaultValue

public <T> T getParameterDefaultValue(String key,
                                      Class<T> type)

getParameterValue

public <T> T getParameterValue(String key,
                               Class<T> type)

asVariables

public Map<String,String> asVariables()

toQueryString
```
public String toQueryString()
```

toJson

public io.vertx.core.json.JsonObject toJson()

Class QueryParameters

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

PARAM_BATCH_SIZE

PARAM_CUSTOM_COLUMNS

PARAM_DATASOURCE_COLUMN

PARAM_FETCH_SIZE

PARAM_MAX_ROWS

PARAM_MUTATION

PARAM_NO_CACHE

PARAM_NULL_AS_DEFAULT

PARAM_OFFSET

PARAM_POSITION

PARAM_TIMEOUT

PARAM_USE_DATETIME

PARAM_DEBUG

DEFAULT_BATCH_SIZE

DEFAULT_FETCH_SIZE

DEFAULT_MAX_ROWS

DEFAULT_OFFSET

DEFAULT_POSITION

DEFAULT_TIMEOUT

Constructor Detail

QueryParameters

QueryParameters

QueryParameters

Method Detail

merge

merge

merge

getBatchSize

getFetchSize

getMaxRows

isMutation

doNotUseCache

nullAsDefault

getOffset

getPosition

getTimeout

showDatasourceColumn

showCustomColumns

isDebug

getParameterDefaultValue

getParameterValue

asVariables

toQueryString

toJson