com.netflix.astyanax.cql.reads

Class FlatTableRowSliceQueryGen

java.lang.Object

com.netflix.astyanax.cql.reads.FlatTableRowSliceQueryGen

public class FlatTableRowSliceQueryGen
extends java.lang.Object

Just like FlatTableRowQueryGen this class encapsulates the functionality for row query generation for Astyanax RowSliceQuery(s). The class uses a collection of query generators to handle all sort of RowSliceQuery permutations like 1. Selecting all columns for a row collection 2. Selecting a column set for a row collection 3. Selecting all columns for a row range 4. Selecting a column set for a row range Note that this class supports query generation for flat tables only. For tables with clustering keys see CFRowKeysQueryGen and CFRowRangeQueryGen. Also, just like the other query generators, use this with caution when using caching of PreparedStatement See FlatTableRowQueryGen for a detailed explanation of why PreparedStatement caching will not work for queries that do not have the same signatures.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String[]	allPrimayKeyCols
protected static java.lang.String	BIND_MARKER
protected CqlColumnFamilyDefinitionImpl	cfDef
protected java.lang.String	keyspace
protected java.lang.String	partitionKeyCol
protected java.util.List<com.netflix.astyanax.ddl.ColumnDefinition>	regularCols
protected java.util.concurrent.atomic.AtomicReference<com.datastax.driver.core.Session>	sessionRef

Constructor Summary

Constructors

Constructor and Description
FlatTableRowSliceQueryGen(com.datastax.driver.core.Session session, java.lang.String keyspaceName, CqlColumnFamilyDefinitionImpl cfDefinition)

Method Summary

Modifier and Type	Method and Description
com.datastax.driver.core.BoundStatement	getQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery, boolean useCaching)
com.datastax.driver.core.BoundStatement	getRowKeysQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery, boolean useCaching)
com.datastax.driver.core.BoundStatement	getRowRangeQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery, boolean useCaching)
protected com.datastax.driver.core.querybuilder.Select	selectAllColumnsFromKeyspaceAndCF() SOME BASIC UTILITY METHODS USED BY ALL THE ROW SLICE QUERY GENERATORS

Methods inherited from class java.lang.Object

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

Field Detail

sessionRef

protected java.util.concurrent.atomic.AtomicReference<com.datastax.driver.core.Session> sessionRef

keyspace

protected final java.lang.String keyspace

cfDef

protected final CqlColumnFamilyDefinitionImpl cfDef

partitionKeyCol

protected final java.lang.String partitionKeyCol

allPrimayKeyCols

protected final java.lang.String[] allPrimayKeyCols

regularCols

protected final java.util.List<com.netflix.astyanax.ddl.ColumnDefinition> regularCols

BIND_MARKER

protected static final java.lang.String BIND_MARKER

See Also:

Constant Field Values

Constructor Detail

FlatTableRowSliceQueryGen

public FlatTableRowSliceQueryGen(com.datastax.driver.core.Session session,
                                 java.lang.String keyspaceName,
                                 CqlColumnFamilyDefinitionImpl cfDefinition)

Method Detail

selectAllColumnsFromKeyspaceAndCF

protected com.datastax.driver.core.querybuilder.Select selectAllColumnsFromKeyspaceAndCF()

SOME BASIC UTILITY METHODS USED BY ALL THE ROW SLICE QUERY GENERATORS

getQueryStatement

public com.datastax.driver.core.BoundStatement getQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery,
                                                                 boolean useCaching)

getRowKeysQueryStatement

public com.datastax.driver.core.BoundStatement getRowKeysQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery,
                                                                        boolean useCaching)

getRowRangeQueryStatement

public com.datastax.driver.core.BoundStatement getRowRangeQueryStatement(CqlRowSliceQueryImpl<?,?> rowSliceQuery,
                                                                         boolean useCaching)