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package com.sun.org.apache.bcel.internal.classfile;

import java.io.DataInput;
import java.io.IOException;

import com.sun.org.apache.bcel.internal.Const;

This class is derived from the abstract Constant and represents a reference to a dynamically computed constant.
See Also:
Since:6.3
/** * This class is derived from the abstract {@link Constant} * and represents a reference to a dynamically computed constant. * * @see Constant * @see <a href="https://bugs.openjdk.java.net/secure/attachment/74618/constant-dynamic.html"> * Change request for JEP 309</a> * @since 6.3 */
public final class ConstantDynamic extends ConstantCP {
Initialize from another object.
/** * Initialize from another object. */
public ConstantDynamic(final ConstantDynamic c) { this(c.getBootstrapMethodAttrIndex(), c.getNameAndTypeIndex()); }
Initialize instance from file data.
Params:
  • file – Input stream
Throws:
/** * Initialize instance from file data. * * @param file Input stream * @throws IOException */
ConstantDynamic(final DataInput file) throws IOException { this(file.readShort(), file.readShort()); } public ConstantDynamic(final int bootstrap_method_attr_index, final int name_and_type_index) { super(Const.CONSTANT_Dynamic, bootstrap_method_attr_index, name_and_type_index); }
Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
Params:
  • v – Visitor object
/** * Called by objects that are traversing the nodes of the tree implicitly * defined by the contents of a Java class. I.e., the hierarchy of methods, * fields, attributes, etc. spawns a tree of objects. * * @param v Visitor object */
@Override public void accept( final Visitor v ) { v.visitConstantDynamic(this); }
Returns:Reference (index) to bootstrap method this constant refers to. Note that this method is a functional duplicate of getClassIndex for use by ConstantInvokeDynamic.
Since:6.0
/** * @return Reference (index) to bootstrap method this constant refers to. * * Note that this method is a functional duplicate of getClassIndex * for use by ConstantInvokeDynamic. * @since 6.0 */
public int getBootstrapMethodAttrIndex() { return super.getClassIndex(); // AKA bootstrap_method_attr_index }
Returns:String representation
/** * @return String representation */
@Override public String toString() { return super.toString().replace("class_index", "bootstrap_method_attr_index"); } }