org.apache.flink.api.table.expressions

Class Substring

java.lang.Object

org.apache.flink.api.table.trees.TreeNode<Expression>

org.apache.flink.api.table.expressions.Expression

org.apache.flink.api.table.expressions.Substring

All Implemented Interfaces:

Serializable, scala.Equals, scala.Product

public class Substring
extends Expression
implements scala.Product, scala.Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Substring(Expression str, Expression beginIndex, Expression endIndex)

Method Summary

Modifier and Type	Method and Description
Expression	beginIndex()
scala.collection.Seq<Expression>	children() List of child nodes that should be considered when doing transformations.
Expression	endIndex()
Expression	str()
String	toString()
BasicTypeInfo<String>	typeInfo()

Methods inherited from class org.apache.flink.api.table.expressions.Expression

freshName, freshNameCounter, name

Methods inherited from class org.apache.flink.api.table.trees.TreeNode

exists, fastEquals, makeCopy, transformChildrenPost, transformChildrenPre, transformPost, transformPre

Methods inherited from class java.lang.Object

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

Methods inherited from interface scala.Product

productArity, productElement, productIterator, productPrefix

Methods inherited from interface scala.Equals

canEqual, equals

Constructor Detail

Substring

public Substring(Expression str,
                 Expression beginIndex,
                 Expression endIndex)

Method Detail

str

public Expression str()

beginIndex

public Expression beginIndex()

endIndex

public Expression endIndex()

typeInfo

public BasicTypeInfo<String> typeInfo()

Specified by:

typeInfo in class Expression

children

public scala.collection.Seq<Expression> children()

Description copied from class: TreeNode

List of child nodes that should be considered when doing transformations. Other values in the Product will not be transformed, only handed through.

Specified by:

children in class TreeNode<Expression>

toString

public String toString()

Overrides:

toString in class Object