Package cc.carm.lib.easysql.builder.impl

Class TableMetadataBuilderImpl

java.lang.Object

cc.carm.lib.easysql.builder.AbstractSQLBuilder

cc.carm.lib.easysql.builder.impl.TableMetadataBuilderImpl

All Implemented Interfaces:

TableMetadataBuilder, SQLBuilder

public class TableMetadataBuilderImpl
extends AbstractSQLBuilder
implements TableMetadataBuilder

Field Summary

Fields

Modifier and Type	Field	Description
protected @NotNull java.lang.String	tablePattern

Constructor Summary

Constructors

Constructor	Description
TableMetadataBuilderImpl(@NotNull SQLManagerImpl manager, @NotNull java.lang.String tablePattern)

Method Summary

Modifier and Type	Method	Description
<R> java.util.concurrent.CompletableFuture<R>	fetchColumns(@Nullable java.lang.String columnPattern, @NotNull SQLFunction<java.sql.ResultSet,R> reader)	对表内的数据列元数据进行读取
java.util.concurrent.CompletableFuture<java.lang.Boolean>	isColumnExists(@NotNull java.lang.String columnPattern)
java.util.concurrent.CompletableFuture<java.util.Set<java.lang.String>>	listColumns(@Nullable java.lang.String columnPattern)	列出所有满足表达式的列。
java.util.concurrent.CompletableFuture<java.lang.Boolean>	validateExist()

Methods inherited from class cc.carm.lib.easysql.builder.AbstractSQLBuilder

getManager

Methods inherited from class java.lang.Object

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

Methods inherited from interface cc.carm.lib.easysql.api.SQLBuilder

getManager

Methods inherited from interface cc.carm.lib.easysql.api.builder.TableMetadataBuilder

listColumns

Field Detail

tablePattern

@NotNull
protected final @NotNull java.lang.String tablePattern

Constructor Detail

TableMetadataBuilderImpl

public TableMetadataBuilderImpl(@NotNull
                                @NotNull SQLManagerImpl manager,
                                @NotNull
                                @NotNull java.lang.String tablePattern)

Method Detail

validateExist

public java.util.concurrent.CompletableFuture<java.lang.Boolean> validateExist()

Specified by:

validateExist in interface TableMetadataBuilder

Returns:

本表是否存在

fetchColumns

public <R> java.util.concurrent.CompletableFuture<R> fetchColumns(@Nullable
                                                                  @Nullable java.lang.String columnPattern,
                                                                  @NotNull
                                                                  @NotNull SQLFunction<java.sql.ResultSet,R> reader)

Description copied from interface: TableMetadataBuilder

对表内的数据列元数据进行读取

Specified by:

fetchColumns in interface TableMetadataBuilder

Type Parameters:

R - 结果类型

Parameters:

columnPattern - 列的名称匹配表达式, 为空则匹配所有列

reader - 读取的方法

Returns:

读取结果

isColumnExists

public java.util.concurrent.CompletableFuture<java.lang.Boolean> isColumnExists(@NotNull
                                                                                @NotNull java.lang.String columnPattern)

Specified by:

isColumnExists in interface TableMetadataBuilder

Parameters:

columnPattern - 需要判断的列名表达式

Returns:

对应列是否存在

listColumns

public java.util.concurrent.CompletableFuture<java.util.Set<java.lang.String>> listColumns(@Nullable
                                                                                           @Nullable java.lang.String columnPattern)

Description copied from interface: TableMetadataBuilder

列出所有满足表达式的列。

Specified by:

listColumns in interface TableMetadataBuilder

Parameters:

columnPattern - 列名表达式，为空则列出全部

Returns:

所有满足表达式的列名