h2-1.4.197.jar
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com.h2database:h2:1.4.197
META-INF
org
h2
jdbc
message
expression
engine
upgrade
Driver.java
security
fulltext
api
compress
index
table
SubQueryInfo.java
FunctionTable.java
TableView.java
ColumnResolver.java
PlanItem.java
Table.java
MetaTable.java
LinkSchema.java
RangeTable.java
IndexColumn.java
TableSynonym.java
SingleColumnResolver.java
TableBase.java
IndexHints.java
Column.java
TableLink.java
RegularTable.java
TableLinkConnection.java
Plan.java
JoinBatch.java
TableType.java
TableFilter.java
constraint
store
util
bnf
command
tools
server
mode
jdbcx
result
JdbcDriverBackwardsCompat.java
jmx
value
schema
mvstore
SingleColumnResolver.java
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类结构
/* * Copyright 2004-2018 H2 Group. Multiple-Licensed under the MPL 2.0, * and the EPL 1.0 (http://h2database.com/html/license.html). * Initial Developer: H2 Group */ package org.h2.table; import org.h2.command.dml.
Select
; import org.h2.expression.
Expression
; import org.h2.expression.
ExpressionColumn
; import org.h2.value.
Value
; /** * The single column resolver is like a table with exactly one row. * It is used to parse a simple one-column check constraint. */ public class
SingleColumnResolver
implements
ColumnResolver
{ private final
Column
column
; private
Value
value
;
SingleColumnResolver
(
Column
column
) { this.
column
=
column
; } @
Override
public
String
getTableAlias
() { return null; } void
setValue
(
Value
value
) { this.
value
=
value
; } @
Override
public
Value
getValue
(
Column
col
) { return
value
; } @
Override
public
Column
[]
getColumns
() { return new
Column
[] {
column
}; } @
Override
public
String
getDerivedColumnName
(
Column
column
) { return null; } @
Override
public
String
getSchemaName
() { return null; } @
Override
public
TableFilter
getTableFilter
() { return null; } @
Override
public
Select
getSelect
() { return null; } @
Override
public
Column
[]
getSystemColumns
() { return null; } @
Override
public
Column
getRowIdColumn
() { return null; } @
Override
public
Expression
optimize
(
ExpressionColumn
expressionColumn
,
Column
col
) { return
expressionColumn
; } }
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