public static class Select.SelectionOrAlias extends Select.Selection
Select.Selection
in that you can add an
alias for the previously selected item through as(java.lang.String)
.Constructor and Description |
---|
SelectionOrAlias() |
Modifier and Type | Method and Description |
---|---|
Select.Builder |
all()
Selects all columns (i.e.
|
Select.Selection |
as(String alias)
Adds an alias for the just selected item.
|
Select.SelectionOrAlias |
cast(Object column,
DataType targetType)
Creates a cast of an expression to a given CQL type.
|
Select.SelectionOrAlias |
column(String name)
Selects the provided column.
|
Select.Builder |
countAll()
Selects the count of all returned rows (i.e.
|
Select.SelectionOrAlias |
fcall(String name,
Object... parameters)
Creates a function call.
|
Select |
from(String keyspace,
String table)
Adds the table to select from.
|
Select |
from(TableMetadata table)
Adds the table to select from.
|
Select.SelectionOrAlias |
raw(String rawString)
Selects the provided raw expression.
|
Select.SelectionOrAlias |
ttl(String name)
Selects the ttl of provided column.
|
Select.SelectionOrAlias |
writeTime(String name)
Selects the write time of provided column.
|
distinct
from
public Select.Selection as(String alias)
alias
- the name of the alias to use.public Select.Builder all()
Select.Selection
all
in class Select.Selection
public Select.Builder countAll()
Select.Selection
countAll
in class Select.Selection
public Select.SelectionOrAlias column(String name)
Select.Selection
column
in class Select.Selection
name
- the new column name to add.public Select.SelectionOrAlias writeTime(String name)
Select.Selection
fcall("writetime", QueryBuilder.column(name))
.writeTime
in class Select.Selection
name
- the name of the column to select the write time of.public Select.SelectionOrAlias ttl(String name)
Select.Selection
fcall("ttl", QueryBuilder.column(name))
.ttl
in class Select.Selection
name
- the name of the column to select the ttl of.public Select.SelectionOrAlias fcall(String name, Object... parameters)
Select.Selection
fcall("textToBlob", "foo")
will generate the string
"textToBlob('foo')"
. If you want to generate
"textToBlob(foo)"
, i.e. if the argument must be interpreted
as a column name (in a select clause), you will need to use the
QueryBuilder.column(java.lang.String)
method, and so
fcall("textToBlob", QueryBuilder.column(foo)
.fcall
in class Select.Selection
name
- the name of the function.parameters
- the parameters for the function call.public Select.SelectionOrAlias cast(Object column, DataType targetType)
Select.Selection
cast
in class Select.Selection
column
- the expression to cast. It can be a complex expression like a
function call
.targetType
- the target CQL type to cast to. Use static methods such as DataType.text()
.public Select.SelectionOrAlias raw(String rawString)
Select.Selection
raw
in class Select.Selection
rawString
- the raw expression to add.public Select from(String keyspace, String table)
Select.Builder
from
in class Select.Builder
keyspace
- the name of the keyspace to select from.table
- the name of the table to select from.keyspace.table
.public Select from(TableMetadata table)
Select.Builder
from
in class Select.Builder
table
- the table to select from.table
.