org.eigenbase.sql
Class SqlInsert

java.lang.Object
  org.eigenbase.sql.SqlNode
      org.eigenbase.sql.SqlCall
          org.eigenbase.sql.SqlInsert

All Implemented Interfaces:

Cloneable

public class SqlInsert
extends SqlCall

A SqlInsert is a node of a parse tree which represents an INSERT statement.

Field Summary

static int	KEYWORDS_OPERAND
static int	OPERAND_COUNT
static int	SOURCE_OPERAND
static int	TARGET_COLUMN_LIST_OPERAND
static int	TARGET_TABLE_OPERAND

Fields inherited from class org.eigenbase.sql.SqlCall

operands

Fields inherited from class org.eigenbase.sql.SqlNode

emptyArray

Constructor Summary

SqlInsert(SqlSpecialOperator operator, SqlNodeList keywords, SqlIdentifier targetTable, SqlNode source, SqlNodeList columnList, SqlParserPos pos)

Method Summary

SqlNode	getModifierNode(SqlInsertKeyword modifier)
SqlNode	getSource()
SqlNodeList	getTargetColumnList()
SqlIdentifier	getTargetTable()
void	unparse(SqlWriter writer, int leftPrec, int rightPrec) Writes a SQL representation of this node to a writer.
void	validate(SqlValidator validator, SqlValidatorScope scope) Validates this call.

Methods inherited from class org.eigenbase.sql.SqlCall

accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getKind, getMonotonicity, getOperands, getOperator, isA, isCountStar, isExpanded, isName, setOperand, setOperator

Methods inherited from class org.eigenbase.sql.SqlNode

clone, cloneArray, equalDeep, getParserPosition, toSqlString, toSqlString, toString, validateExpr

Methods inherited from class java.lang.Object

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

Field Detail

KEYWORDS_OPERAND

public static final int KEYWORDS_OPERAND

See Also:

Constant Field Values

TARGET_TABLE_OPERAND

public static final int TARGET_TABLE_OPERAND

See Also:

Constant Field Values

SOURCE_OPERAND

public static final int SOURCE_OPERAND

See Also:

Constant Field Values

TARGET_COLUMN_LIST_OPERAND

public static final int TARGET_COLUMN_LIST_OPERAND

See Also:

Constant Field Values

OPERAND_COUNT

public static final int OPERAND_COUNT

See Also:

Constant Field Values

Constructor Detail

SqlInsert

public SqlInsert(SqlSpecialOperator operator,
                 SqlNodeList keywords,
                 SqlIdentifier targetTable,
                 SqlNode source,
                 SqlNodeList columnList,
                 SqlParserPos pos)

Method Detail

getTargetTable

public SqlIdentifier getTargetTable()

Returns:

the identifier for the target table of the insertion

getSource

public SqlNode getSource()

Returns:

the source expression for the data to be inserted

getTargetColumnList

public SqlNodeList getTargetColumnList()

Returns:

the list of target column names, or null for all columns in the target table

getModifierNode

public final SqlNode getModifierNode(SqlInsertKeyword modifier)

unparse

public void unparse(SqlWriter writer,
                    int leftPrec,
                    int rightPrec)

Description copied from class: SqlNode

Writes a SQL representation of this node to a writer.

The leftPrec and rightPrec parameters give us enough context to decide whether we need to enclose the expression in parentheses. For example, we need parentheses around "2 + 3" if preceded by "5 *". This is because the precedence of the "*" operator is greater than the precedence of the "+" operator.

The algorithm handles left- and right-associative operators by giving them slightly different left- and right-precedence.

If SqlWriter.isAlwaysUseParentheses() is true, we use parentheses even when they are not required by the precedence rules.

For the details of this algorithm, see SqlCall.unparse(org.eigenbase.sql.SqlWriter, int, int).

Overrides:

unparse in class SqlCall

Parameters:

writer - Target writer

leftPrec - The precedence of the SqlNode immediately preceding this node in a depth-first scan of the parse tree

rightPrec - The precedence of the SqlNode immediately

validate

public void validate(SqlValidator validator,
                     SqlValidatorScope scope)

Description copied from class: SqlCall

Validates this call.

The default implementation delegates the validation to the operator's SqlOperator.validateCall(org.eigenbase.sql.SqlCall, org.eigenbase.sql.validate.SqlValidator, org.eigenbase.sql.validate.SqlValidatorScope, org.eigenbase.sql.validate.SqlValidatorScope). Derived classes may override (as do, for example SqlSelect and SqlUpdate).

Overrides:

validate in class SqlCall

scope - Validator