org.h2.expression.function

类 XMLFunction

java.lang.Object

org.h2.expression.Expression

org.h2.expression.OperationN

org.h2.expression.function.FunctionN

org.h2.expression.function.XMLFunction

所有已实现的接口:

ExpressionWithVariableParameters, NamedExpression, HasSQL, Typed

public final class XMLFunction
extends FunctionN

An XML function.

字段概要

字段

限定符和类型	字段和说明
static int	XMLATTR XMLATTR() (non-standard).
static int	XMLCDATA XMLCDATA() (non-standard).
static int	XMLCOMMENT XMLCOMMENT() (non-standard).
static int	XMLNODE XMLNODE() (non-standard).
static int	XMLSTARTDOC XMLSTARTDOC() (non-standard).
static int	XMLTEXT XMLTEXT() (non-standard).

从类继承的字段 org.h2.expression.OperationN

args, argsCount, type

从类继承的字段 org.h2.expression.Expression

AUTO_PARENTHESES, MAP_IN_AGGREGATE, MAP_IN_WINDOW, MAP_INITIAL, WITH_PARENTHESES, WITHOUT_PARENTHESES

从接口继承的字段 org.h2.util.HasSQL

ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

构造器概要

构造器

构造器和说明
XMLFunction(int function)

方法概要

限定符和类型	方法和说明
String	getName() Get the name.
Value	getValue(SessionLocal session) Return the resulting value for the current row.
protected Value	getValue(SessionLocal session, Value v1, Value v2, Value v3) Returns the value of this function.
Expression	optimize(SessionLocal session) Try to optimize the expression.

从类继承的方法 org.h2.expression.function.FunctionN

getUnenclosedSQL

从类继承的方法 org.h2.expression.OperationN

addParameter, doneWithParameters, getCost, getSubexpression, getSubexpressionCount, getType, isEverything, mapColumns, optimizeArguments, setEvaluatable, updateAggregate

从类继承的方法 org.h2.expression.Expression

addFilterConditions, createIndexConditions, getAlias, getBooleanValue, getColumnName, getColumnNameForView, getEnclosedSQL, getNonAliasExpression, getNotIfPossible, getNullable, getSchemaName, getSQL, getSQL, getSQL, getSQL, getTableAlias, getTableName, getWhenSQL, getWhenValue, isConstant, isIdentity, isNullConstant, isValueSet, isWhenConditionOperand, needParentheses, optimizeCondition, toString, writeExpressions, writeExpressions

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.h2.util.HasSQL

getTraceSQL

字段详细资料

XMLATTR

public static final int XMLATTR

XMLATTR() (non-standard).

另请参阅:

常量字段值

XMLCDATA

public static final int XMLCDATA

XMLCDATA() (non-standard).

另请参阅:

常量字段值

XMLCOMMENT

public static final int XMLCOMMENT

XMLCOMMENT() (non-standard).

另请参阅:

常量字段值

XMLNODE

public static final int XMLNODE

XMLNODE() (non-standard).

另请参阅:

常量字段值

XMLSTARTDOC

public static final int XMLSTARTDOC

XMLSTARTDOC() (non-standard).

另请参阅:

常量字段值

XMLTEXT

public static final int XMLTEXT

XMLTEXT() (non-standard).

另请参阅:

常量字段值

构造器详细资料

XMLFunction

public XMLFunction(int function)

方法详细资料

getValue

public Value getValue(SessionLocal session)

从类复制的说明: Expression

Return the resulting value for the current row.

覆盖:

getValue 在类中 FunctionN

参数:

session - the session

返回:

the result

getValue

protected Value getValue(SessionLocal session,
                         Value v1,
                         Value v2,
                         Value v3)

从类复制的说明: FunctionN

Returns the value of this function.

覆盖:

getValue 在类中 FunctionN

参数:

session - the session

v1 - the value of first argument, or null

v2 - the value of second argument, or null

v3 - the value of third argument, or null

返回:

the resulting value

optimize

public Expression optimize(SessionLocal session)

从类复制的说明: Expression

Try to optimize the expression.

指定者:

optimize 在类中 Expression

参数:

session - the session

返回:

the optimized expression

getName

public String getName()

从接口复制的说明: NamedExpression

Get the name.

返回:

the name in uppercase