kotlinize
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@@ -13,119 +13,112 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.database
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package com.hippo.database;
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import android.content.Context
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import android.database.sqlite.SQLiteOpenHelper
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import android.util.SparseArray
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/*
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* Created by Hippo on 2017/9/3.
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*/
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import android.content.Context;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.util.SparseArray;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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public class MSQLiteBuilder {
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public static final String COLUMN_ID = "_id";
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private static final Map<Class, String> JAVA_TYPE_TO_SQLITE_TYPE = new HashMap<>();
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static {
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JAVA_TYPE_TO_SQLITE_TYPE.put(boolean.class, "INTEGER NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(byte.class, "INTEGER NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(short.class, "INTEGER NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(int.class, "INTEGER NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(long.class, "INTEGER NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(float.class, "REAL NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(double.class, "REAL NOT NULL DEFAULT 0");
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JAVA_TYPE_TO_SQLITE_TYPE.put(String.class, "TEXT");
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}
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private final SparseArray<List<String>> statementsMap = new SparseArray<>();
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private int version = 0;
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private List<String> statements;
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private static String javaTypeToSQLiteType(Class clazz) {
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String type = JAVA_TYPE_TO_SQLITE_TYPE.get(clazz);
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if (type == null) {
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throw new IllegalStateException("Unknown type: " + clazz);
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class MSQLiteBuilder {
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companion object {
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const val COLUMN_ID = "_id"
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private val JAVA_TYPE_TO_SQLITE_TYPE: MutableMap<Class<*>?, String> = HashMap()
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private fun javaTypeToSQLiteType(clazz: Class<*>?): String {
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return JAVA_TYPE_TO_SQLITE_TYPE[clazz]
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?: throw IllegalStateException("Unknown type: $clazz")
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}
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init {
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JAVA_TYPE_TO_SQLITE_TYPE[Boolean::class.javaPrimitiveType] =
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"INTEGER NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Byte::class.javaPrimitiveType] =
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"INTEGER NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Short::class.javaPrimitiveType] =
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"INTEGER NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Int::class.javaPrimitiveType] = "INTEGER NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Long::class.javaPrimitiveType] =
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"INTEGER NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Float::class.javaPrimitiveType] =
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"REAL NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[Double::class.javaPrimitiveType] = "REAL NOT NULL DEFAULT 0"
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JAVA_TYPE_TO_SQLITE_TYPE[String::class.java] = "TEXT"
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}
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return type;
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}
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private val statementsMap = SparseArray<List<String>?>()
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private var version = 0
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private var statements: MutableList<String>? = null
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/**
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* Bump database version.
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*/
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public MSQLiteBuilder version(int version) {
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if (version <= this.version) {
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throw new IllegalStateException("New version must be bigger than current version. "
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+ "current version: " + this.version + ", new version: " + version + ".");
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fun version(version: Int): MSQLiteBuilder {
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check(version > this.version) {
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("New version must be bigger than current version. "
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+ "current version: " + this.version + ", new version: " + version + ".")
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}
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this.version = version;
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this.statements = new ArrayList<>();
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this.statementsMap.put(version, this.statements);
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return this;
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this.version = version
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statements = ArrayList()
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statementsMap.put(version, statements)
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return this
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}
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/**
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* Creates a table with int {@link #COLUMN_ID} primary key.
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*/
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public MSQLiteBuilder createTable(String table) {
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return createTable(table, COLUMN_ID, int.class);
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}
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/**
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* Creates a table.
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*/
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public MSQLiteBuilder createTable(String table, String column, Class clazz) {
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return statement("CREATE TABLE " + table + " (" + column + " " + javaTypeToSQLiteType(clazz) + " PRIMARY KEY);");
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/**
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* Creates a table with int [.COLUMN_ID] primary key.
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*/
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@JvmOverloads
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fun createTable(
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table: String,
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column: String = COLUMN_ID,
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clazz: Class<*>? = Int::class.javaPrimitiveType
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): MSQLiteBuilder {
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return statement("CREATE TABLE " + table + " (" + column + " " + javaTypeToSQLiteType(clazz) + " PRIMARY KEY);")
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}
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/**
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* Drops a table.
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*/
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public MSQLiteBuilder dropTable(String table) {
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return statement("DROP TABLE " + table + ";");
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fun dropTable(table: String): MSQLiteBuilder {
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return statement("DROP TABLE $table;")
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}
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/**
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* Inserts a column to the table.
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*/
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public MSQLiteBuilder insertColumn(String table, String column, Class clazz) {
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return statement("ALTER TABLE " + table + " ADD COLUMN " + column + " " + javaTypeToSQLiteType(clazz) + ";");
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fun insertColumn(table: String, column: String, clazz: Class<*>?): MSQLiteBuilder {
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return statement(
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"ALTER TABLE $table ADD COLUMN $column " + javaTypeToSQLiteType(
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clazz
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) + ";"
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)
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}
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/**
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* Add a statement.
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*/
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public MSQLiteBuilder statement(String statement) {
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if (version == 0 || statements == null) {
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throw new IllegalStateException("Call version() first!");
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}
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statements.add(statement);
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return this;
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fun statement(statement: String): MSQLiteBuilder {
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check(!(version == 0 || statements == null)) { "Call version() first!" }
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statements!!.add(statement)
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return this
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}
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/**
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* Build a SQLiteOpenHelper from it.
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*/
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public SQLiteOpenHelper build(Context context, String name, int version) {
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return new MSQLiteOpenHelper(context, name, version, this);
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fun build(context: Context?, name: String?, version: Int): SQLiteOpenHelper {
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return MSQLiteOpenHelper(context, name, version, this)
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}
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List<String> getStatements(int oldVersion, int newVersion) {
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List<String> result = new ArrayList<>();
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for (int i = oldVersion + 1; i <= newVersion; ++i) {
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List<String> list = statementsMap.get(i);
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fun getStatements(oldVersion: Int, newVersion: Int): List<String> {
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val result: MutableList<String> = ArrayList()
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for (i in oldVersion + 1..newVersion) {
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val list = statementsMap[i]
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if (list != null) {
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result.addAll(list);
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result.addAll(list)
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}
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}
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return result;
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return result
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}
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}
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}
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@@ -13,45 +13,31 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.database
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package com.hippo.database;
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import android.content.Context
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import android.database.sqlite.SQLiteDatabase
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import android.database.sqlite.SQLiteOpenHelper
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import com.hippo.util.SqlUtils
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/*
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* Created by Hippo on 2017/9/4.
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*/
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import android.content.Context;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import com.hippo.util.SqlUtils;
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class MSQLiteOpenHelper extends SQLiteOpenHelper {
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private final int version;
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private final MSQLiteBuilder builder;
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public MSQLiteOpenHelper(Context context, String name, int version, MSQLiteBuilder builder) {
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super(context, name, null, version);
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this.version = version;
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this.builder = builder;
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internal class MSQLiteOpenHelper(
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context: Context?,
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name: String?,
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private val version: Int,
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private val builder: MSQLiteBuilder
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) : SQLiteOpenHelper(context, name, null, version) {
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override fun onCreate(db: SQLiteDatabase) {
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onUpgrade(db, 0, version)
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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onUpgrade(db, 0, version);
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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for (String command : builder.getStatements(oldVersion, newVersion)) {
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db.execSQL(command);
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override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
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for (command in builder.getStatements(oldVersion, newVersion)) {
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db.execSQL(command)
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}
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}
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@Override
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public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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SqlUtils.dropAllTable(db);
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onCreate(db);
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override fun onDowngrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
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SqlUtils.dropAllTable(db)
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onCreate(db)
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}
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}
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}
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