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‎.classpath

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" output="target/classes" path="src/main/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" output="target/test-classes" path="src/test/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.8.0_144">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="output" path="target/classes"/>
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</classpath>

‎.project

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>study-indexdb</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.m2e.core.maven2Builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.m2e.core.maven2Nature</nature>
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</natures>
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</projectDescription>

‎.settings/org.eclipse.jdt.core.prefs

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning

‎.settings/org.eclipse.m2e.core.prefs

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activeProfiles=
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eclipse.preferences.version=1
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resolveWorkspaceProjects=true
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version=1

‎pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.cduvvuri</groupId>
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<artifactId>sindexdb</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<dependencies>
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<!-- https://mvnrepository.com/artifact/junit/junit -->
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/com/cduvvuri/sidb/annotations/Entity.java

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package com.cduvvuri.sidb.annotations;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* Entity that encapsulates the key and fields
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*
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* @author Chaitanya DS
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* 08-Nov-2017
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*
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*
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*/
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.TYPE})
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public @interface Entity {
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}

‎src/main/java/com/cduvvuri/sidb/annotations/Field.java

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package com.cduvvuri.sidb.annotations;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* This is restricted to primitives.. for now
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* @author Chaitanya DS
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* 08-Nov-2017
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*
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* Fields represent the record associated with the key for each entity
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*/
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@Target(ElementType.FIELD)
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@Retention(RetentionPolicy.RUNTIME)
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public @interface Field {
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public String name();
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}

‎src/main/java/com/cduvvuri/sidb/annotations/Key.java

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package com.cduvvuri.sidb.annotations;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* This is restricted to primitives.. for now
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* @author Chaitanya DS
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* 08-Nov-2017
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*
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* Fields represent the record associated with the key for each entity
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*/
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@Target(ElementType.TYPE)
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@Retention(RetentionPolicy.RUNTIME)
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public @interface Key {
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}

‎src/main/java/com/cduvvuri/sidb/annotations/TextField.java

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package com.cduvvuri.sidb.annotations;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* This is restricted to string type
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* @author Chaitanya DS
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* 11-Nov-2017
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*/
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@Target(ElementType.FIELD)
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@Retention(RetentionPolicy.RUNTIME)
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public @interface TextField {
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int length() default 20;
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String name();
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}

‎src/main/java/com/cduvvuri/sidb/common/Constatnts.java

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package com.cduvvuri.sidb.common;
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/**
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*
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* @author Chaitanya DS
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* 14-Nov-2017
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*/
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public interface Constatnts {
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public static final String BTREE_IDX_NAME = "btree.idx";
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public static final int BLOCK_SIZE_IN_KB = 8;
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public static final String EMPTY_STRING = "";
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}

‎src/main/java/com/cduvvuri/sidb/common/SampleEntity.java

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package com.cduvvuri.sidb.common;
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import com.cduvvuri.sidb.annotations.Entity;
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import com.cduvvuri.sidb.annotations.Field;
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import com.cduvvuri.sidb.annotations.TextField;
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/**
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*
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* @author Chaitanya DS
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* 08-Nov-2017
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*/
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@Entity
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public class SampleEntity {
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@Field(name = "field1")
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private Integer field1;
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@TextField(name = "field2", length = 20)
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private String field2;
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public SampleEntity() {
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}
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public SampleEntity(Integer field1, String field2) {
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this.field1 = field1;
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this.field2 = field2;
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}
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public Integer getField1() {
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return field1;
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}
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public void setField1(Integer field1) {
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this.field1 = field1;
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}
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public String getField2() {
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return field2;
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}
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public void setField2(String field2) {
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this.field2 = field2;
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}
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}

‎src/main/java/com/cduvvuri/sidb/common/SampleKey.java

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package com.cduvvuri.sidb.common;
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import com.cduvvuri.sidb.annotations.Field;
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import com.cduvvuri.sidb.annotations.Key;
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/**
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*
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* @author Chaitanya DS
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* 30-Nov-2017
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*/
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@Key
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public class SampleKey implements Comparable<SampleKey> {
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@Field(name = "id")
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private Integer id;
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public SampleKey() {
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}
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public SampleKey(Integer id) {
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this.id = id;
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}
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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@Override
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public int compareTo(SampleKey sk) {
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if (this.id < sk.id) {
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return -1;
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} else if (this.id > sk.id) {
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return 1;
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}
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return 0;
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}
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public String toString() {
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return String.valueOf(id);
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}
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}

‎src/main/java/com/cduvvuri/sidb/common/SizeUtils.java

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package com.cduvvuri.sidb.common;
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/**
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*
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* @author Chaitanya DS
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* 15-Nov-2017
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*/
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public class SizeUtils {
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public static int sizeOf(int i) {
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return Integer.BYTES;
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}
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public static int sizeOf(boolean b) {
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return 1;//1 byte
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}
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public static int sizeOf(long l) {
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return Long.BYTES;
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}
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/**
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* TODO
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* @param entity
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* @return
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*/
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public static int sizeOfEntity(Class<?> entity) {
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return -1;
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}
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public static int sizeOf(byte[] fieldHeaderInBytes) {
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return fieldHeaderInBytes.length;
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}
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}

‎src/main/java/com/cduvvuri/sidb/common/SpatialIndex.java

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package com.cduvvuri.sidb.common;
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/**
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* TODO
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* @author Chaitanya DS
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* 13-Nov-2017
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*/
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public interface SpatialIndex {
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}

‎src/main/java/com/cduvvuri/sidb/error/AVLException.java

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package com.cduvvuri.sidb.error;
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/**
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*
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* @author Chaitanya DS
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* 30-Nov-2017
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*/
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public class AVLException extends RuntimeException {
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private static final long serialVersionUID = 1L;
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public AVLException() {
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super();
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}
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public AVLException(String message) {
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super(message);
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}
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public AVLException(String message, Throwable t) {
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super(message, t);
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}
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}

‎src/main/java/com/cduvvuri/sidb/error/BTreeException.java

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package com.cduvvuri.sidb.error;
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/**
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*
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* @author Chaitanya DS
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* 15-Nov-2017
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*/
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public class BTreeException extends RuntimeException {
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private static final long serialVersionUID = 1L;
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public BTreeException() {
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super();
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}
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public BTreeException(String message) {
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super(message);
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}
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public BTreeException(String message, Throwable t) {
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super(message, t);
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}
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}

‎src/main/java/com/cduvvuri/sidb/error/ValidationException.java

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package com.cduvvuri.sidb.error;
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/**
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*
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* @author Chaitanya DS
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* 08-Nov-2017
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*
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*/
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public class ValidationException extends RuntimeException {
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private static final long serialVersionUID = -2209221617833800956L;
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public ValidationException() {
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super();
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}
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public ValidationException(String message) {
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super(message);
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}
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public ValidationException(String message, Throwable t) {
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super(message, t);
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}
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}

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