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oracle.olapi.syntax
Class ColumnExpression

java.lang.Object
oracle.olapi.syntax.SyntaxObject
oracle.olapi.syntax.DataObject
oracle.olapi.syntax.Expression
oracle.olapi.syntax.TypedExpression
oracle.olapi.syntax.ColumnExpression

All Implemented Interfaces:

FunctionArgument

public final class ColumnExpression

extends TypedExpression

A TypedExpression that represents a column in a relational table or view. A ColumnExpression is like a column expression in SQL.

Method Summary

boolean	equals(java.lang.Object obj) Indicates whether the specified object is the same as this ColumnExpression.
java.lang.String	getColumnName() Gets the name of the relational column that is associated with this ColumnExpression.
Source	getListSource(DataProvider dp) Gets the ListSource that is associated with this ColumnExpression.
Query	getQuery() Gets the Query that is associated with this ColumnExpression.
java.lang.Object	visit(SyntaxObjectVisitor visitor, java.lang.Object context) Calls the visitColumnExpression method of the SyntaxObjectVisitor and passes that method this ColumnExpression and an Object.

Methods inherited from class oracle.olapi.syntax.TypedExpression

abs, acos, addMonths, addMonths, ascii, asciiStr, asin, atan, atan2, between, bFileName, binToNum, bitAnd, cast, ceil, charToROWID, chr, chr, coalesce, compose, concat, concat, convert, convert, cos, cosh, currentDate, currentTime, dbTimeZone, decode, decompose, deref, div, div, div, div, div, dump, emptyBLOB, emptyCLOB, eq, eq, eq, eq, eq, existsNode, exp, extractDay, extractHour, extractMinute, extractMonth, extractSecond, extractTimeZoneAbbr, extractTimeZoneHour, extractTimeZoneMinute, extractTimeZoneRegion, extractXML, extractYear, floor, fromTZ, ge, ge, ge, ge, ge, getDataType, greatest, gt, gt, gt, gt, gt, hexToRAW, in, initcap, instr, instr2, instr4, instrB, instrC, isInfinite, isNAN, isNotNull, isNull, lastDay, le, le, le, le, le, least, length, length2, length4, lengthB, lengthC, like, like, like2, like4, likeC, ln, localTimestamp, log, lower, lpad, lt, lt, lt, lt, lt, ltrim, minus, minus, minus, minus, minus, minus, mod, monthsBetween, nanvl, ne, ne, ne, ne, ne, newTime, nextDay, nlsCharsetDeclLen, nlsCharsetID, nlsCharsetName, nlsInitcap, nlsLower, nlsSort, nlsUpper, notIn, nullIf, numToDSInterval, numToYMInterval, nvl, nvl2, oraHash, plus, plus, plus, plus, plus, power, rawToHex, rawToNHex, regexpInstr, regexpReplace, regexpSubstr, remainder, replace, round, rowIDToChar, rowIDToNChar, rpad, rtrim, scnToTimestamp, sessionTimeZone, sign, sin, sinh, soundex, sqrt, substr, substr2, substr4, substrB, substrC, sysContext, sysDate, sysExtractUTC, sysGUID, sysTimestamp, sysTypeID, tan, tanh, times, times, times, times, times, timestampToSCN, toBinaryDouble, toBinaryFloat, toChar, toChar, toCLOB, toDate, toDate, toDSInterval, toLOB, toMultiByte, toNChar, toNChar, toNCLOB, toNumber, toNumber, toNumber, toSingleByte, toTimestamp, toTimestampTZ, toYMInterval, translate, translateUsingCharCS, translateUsingNCharCS, treat, trim, trimLeading, trimTrailing, trunc, tzOffset, UID, unistr, upper, USER, userEnv, vsize, widthBucket

Methods inherited from class oracle.olapi.syntax.Expression

getSource

Methods inherited from class oracle.olapi.syntax.SyntaxObject

fromSyntax, fromSyntax, fromSyntax, fromSyntax, fromSyntax, isValid, toSyntax, toSyntax, toSyntax, toSyntax, toSyntax

Methods inherited from class java.lang.Object

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

Method Detail

visit

public java.lang.Object visit(SyntaxObjectVisitor visitor,
                              java.lang.Object context)

Calls the visitColumnExpression method of the SyntaxObjectVisitor and passes that method this ColumnExpression and an Object.

Specified by:

visit in class SyntaxObject

Parameters:

visitor - A SyntaxObjectVisitor.

context - An Object.

Returns:

The Object returned by the visitColumnExpression method.

getQuery

public Query getQuery()

Gets the Query that is associated with this ColumnExpression.

Returns:

The Query associated with this ColumnExpression.

getColumnName

public java.lang.String getColumnName()

Gets the name of the relational column that is associated with this ColumnExpression.

Returns:

A String that contains the name of the column.

equals

public boolean equals(java.lang.Object obj)

Indicates whether the specified object is the same as this ColumnExpression. The object is the same if it is a ColumnExpression that has the same name and the same Query as this ColumnExpression.

Overrides:

equals in class java.lang.Object

Parameters:

obj - The Object to compare to this ColumnExpression.

Returns:

A boolean that is true if the specified object is the same as this ColumnExpression or false if it is not.

getListSource

public Source getListSource(DataProvider dp)

Gets the ListSource that is associated with this ColumnExpression.

Parameters:

dp - The DataProvider associated with the current UserSession.

Returns:

The ListSource associated with this ColumnExpression.

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