org.helenus.driver.impl

Class Utils

java.lang.Object

org.helenus.driver.impl.Utils

public abstract class Utils
extends Object

The Utils class is a copy of the com.datastax.driver.core.querybuilder.Utils which is package private

Since:

1.0

Version:

1 - Jan 19, 2015 - paouelle - Creation

Author:

The Helenus Driver Project Authors

Copyright:

2015-2017 The Helenus Driver Project Authors

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Utils.Alias
static class	Utils.CName
static class	Utils.CNameIndex
static class	Utils.CNameKey
static class	Utils.CNameSequence
static class	Utils.FCall
static class	Utils.RawString

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static StringBuilder	appendName(StringBuilder sb, String name)
static boolean	containsBindMarker(Object value)
static boolean	containsSpecialValue(Object value)
static boolean	isBindMarker(Object value)
static boolean	isIdempotent(Object value)
static boolean	isSerializable(Object value) Return true if the given value is likely to find a suitable codec to be serialized as a query parameter.
static StringBuilder	joinAndAppend(TableInfoImpl<?> tinfo, com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values, Collection<? extends org.helenus.driver.impl.Utils.Appendeable> moreValues, List<Object> variables)
static StringBuilder	joinAndAppend(TableInfoImpl<?> tinfo, com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values, List<Object> variables)
static StringBuilder	joinAndAppendNames(TableInfoImpl<?> tinfo, com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Iterable<?> values)
static StringBuilder	joinAndAppendNamesAndValues(com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, String keySeparator, Map<String,Triple<Object,CQLDataType,com.datastax.driver.core.TypeCodec<?>>> mappings, List<Object> variables)
static StringBuilder	joinAndAppendValues(com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Iterable<?> values, CQLDataType definition, List<Object> variables)
static StringBuilder	joinAndAppendValues(com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Iterable<Triple<Object,CQLDataType,com.datastax.driver.core.TypeCodec<?>>> values, List<Object> variables)
static StringBuilder	joinAndAppendWithNoDuplicates(TableInfoImpl<?> tinfo, com.datastax.driver.core.TypeCodec<?> codec, com.datastax.driver.core.CodecRegistry codecRegistry, StringBuilder sb, String separator, Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values, List<Object> variables)

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

joinAndAppendNamesAndValues

public static StringBuilder joinAndAppendNamesAndValues(com.datastax.driver.core.TypeCodec<?> codec,
                                                        com.datastax.driver.core.CodecRegistry codecRegistry,
                                                        StringBuilder sb,
                                                        String separator,
                                                        String keySeparator,
                                                        Map<String,Triple<Object,CQLDataType,com.datastax.driver.core.TypeCodec<?>>> mappings,
                                                        List<Object> variables)

joinAndAppendWithNoDuplicates

public static StringBuilder joinAndAppendWithNoDuplicates(TableInfoImpl<?> tinfo,
                                                          com.datastax.driver.core.TypeCodec<?> codec,
                                                          com.datastax.driver.core.CodecRegistry codecRegistry,
                                                          StringBuilder sb,
                                                          String separator,
                                                          Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values,
                                                          List<Object> variables)

joinAndAppend

public static StringBuilder joinAndAppend(TableInfoImpl<?> tinfo,
                                          com.datastax.driver.core.TypeCodec<?> codec,
                                          com.datastax.driver.core.CodecRegistry codecRegistry,
                                          StringBuilder sb,
                                          String separator,
                                          Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values,
                                          List<Object> variables)

joinAndAppend

public static StringBuilder joinAndAppend(TableInfoImpl<?> tinfo,
                                          com.datastax.driver.core.TypeCodec<?> codec,
                                          com.datastax.driver.core.CodecRegistry codecRegistry,
                                          StringBuilder sb,
                                          String separator,
                                          Collection<? extends org.helenus.driver.impl.Utils.Appendeable> values,
                                          Collection<? extends org.helenus.driver.impl.Utils.Appendeable> moreValues,
                                          List<Object> variables)

joinAndAppendNames

public static StringBuilder joinAndAppendNames(TableInfoImpl<?> tinfo,
                                               com.datastax.driver.core.TypeCodec<?> codec,
                                               com.datastax.driver.core.CodecRegistry codecRegistry,
                                               StringBuilder sb,
                                               String separator,
                                               Iterable<?> values)

joinAndAppendValues

public static StringBuilder joinAndAppendValues(com.datastax.driver.core.TypeCodec<?> codec,
                                                com.datastax.driver.core.CodecRegistry codecRegistry,
                                                StringBuilder sb,
                                                String separator,
                                                Iterable<Triple<Object,CQLDataType,com.datastax.driver.core.TypeCodec<?>>> values,
                                                List<Object> variables)

joinAndAppendValues

public static StringBuilder joinAndAppendValues(com.datastax.driver.core.TypeCodec<?> codec,
                                                com.datastax.driver.core.CodecRegistry codecRegistry,
                                                StringBuilder sb,
                                                String separator,
                                                Iterable<?> values,
                                                CQLDataType definition,
                                                List<Object> variables)

isBindMarker

public static boolean isBindMarker(Object value)

containsBindMarker

public static boolean containsBindMarker(Object value)

containsSpecialValue

public static boolean containsSpecialValue(Object value)

isSerializable

public static boolean isSerializable(Object value)

Return true if the given value is likely to find a suitable codec to be serialized as a query parameter. If the value is not serializable, it must be included in the query string. Non serializable values include special values such as function calls, column names and bind markers, and collections thereof. We also don't serialize fixed size number types. The reason is that if we do it, we will force a particular size (4 bytes for ints, ...) and for the query builder, we don't want users to have to bother with that.

Parameters:

value - the value to inspect

Returns:

true if the value is serializable, false otherwise

isIdempotent

public static boolean isIdempotent(Object value)

appendName

public static StringBuilder appendName(StringBuilder sb,
                                       String name)