com.hazelcast.internal.serialization.impl.InternalGenericRecord Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.internal.serialization.impl;
import com.hazelcast.nio.serialization.HazelcastSerializationException;
import com.hazelcast.nio.serialization.genericrecord.GenericRecord;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
/**
* Additionally to GenericRecord, this one has more methods to be used in Query.
*
* GenericRecordQueryReader
* InternalGenericRecord implementations should not deserialize the passed content completely in their constructor when
* they are created, because they will be used to query a couple of fields from a big object. And deserializing the
* whole content in the constructor will be a redundant work.
* CompactInternalGenericRecord
* PortableInternalGenericRecord
*
* read*FromArray methods will return `null`
* 1. if the array is null or empty
* 2. there is no data at given index. In other words, the index is bigger than the length of the array
*
*
* GenericRecord inheritance hierarchy:
* GenericRecord
* - { InternalGenericRecord} -> Interface for Query Related Methods
* -- { AbstractGenericRecord} -> common methods. toString getAny equals hashCode
* --- { CompactGenericRecord} -> Abstract class implementing getSchema toString for Compact
* ---- { CompactInternalGenericRecord} -> concrete class used in query { GenericRecordQueryReader}
* ----- { DefaultCompactReader} -> Adaptor to make CompactInternalGenericRecord usable as { CompactReader}
* ---- { DeserializedGenericRecord} -> concrete class passed to the user
* --- { PortableGenericRecord} -> Abstract class implementing getClassDefinition toString for Portable
* ---- { DeserializedPortableGenericRecord} -> concrete class used in query { GenericRecordQueryReader}
* ---- { PortableInternalGenericRecord} -> concrete class passed to the user
*/
public interface InternalGenericRecord extends GenericRecord {
/**
* @param fieldName the name of the field
* @return true if field exists in the schema/class definition. Note that
* returns true even if the field is null.
*/
boolean hasField(@Nonnull String fieldName);
/**
* @param fieldName the name of the field
* @return the value of the field
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
InternalGenericRecord getInternalGenericRecord(@Nonnull String fieldName);
/**
* @param fieldName the name of the field
* @return the value of the field
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
InternalGenericRecord[] getArrayOfInternalGenericRecord(@Nonnull String fieldName);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Boolean getBooleanFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Character getCharFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Byte getInt8FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Short getInt16FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Integer getInt32FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Long getInt64FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Float getFloat32FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Double getFloat64FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
String getStringFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
GenericRecord getGenericRecordFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
InternalGenericRecord getInternalGenericRecordFromArray(@Nonnull String fieldName, int index);
/**
* Reads same value { InternalGenericRecord#getGenericRecord(String)} }, but in deserialized form.
* This is used in query system when the object is leaf of the query.
*
* @param fieldName the name of the field
* @param index array index to read from
* @return a nested field as a concrete deserialized object rather than generic record
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
T getObjectFromArray(@Nonnull String fieldName, int index);
/**
* Reads same value { GenericRecord#getArrayOfGenericRecord(String)} (String)}, but in deserialized form.
* This is used in query system when the object is leaf of the query.
*
* @param fieldName the name of the field
* @return a nested field as array of deserialized objects rather than array of the generic records
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
T[] getArrayOfObject(@Nonnull String fieldName, Class componentType);
/**
* Reads same value { GenericRecord#getGenericRecord(String)} }, but in deserialized form.
* This is used in query system when the object is leaf of the query.
*
* @param fieldName the name of the field
* @return a nested field as a concrete deserialized object rather than generic record
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
T getObject(@Nonnull String fieldName);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
BigDecimal getDecimalFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
LocalTime getTimeFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
LocalDate getDateFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
LocalDateTime getTimestampFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
OffsetDateTime getTimestampWithTimezoneFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Boolean getNullableBooleanFromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Byte getNullableInt8FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Short getNullableInt16FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Integer getNullableInt32FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Long getNullableInt64FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Float getNullableFloat32FromArray(@Nonnull String fieldName, int index);
/**
* @param fieldName the name of the field
* @return the value from the given index, returns null if index is larger than the array size or if array itself
* is null
* @throws HazelcastSerializationException if the field name does not exist in the class definition/schema or
* the type of the field does not match the one in the class definition/schema.
*/
@Nullable
Double getNullableFloat64FromArray(@Nonnull String fieldName, int index);
}